How to Install a Wind Generator on a Sailboat

How to Install a Wind Generator on a Sailboat | Life of Sailing

Last Updated by

Daniel Wade

June 15, 2022

The marine wind generator is, without a doubt, one of the most effective ways of charging your boat's batteries while you are away from the electricity grid. One of the most important things to take into account when selecting a marine wind generator for your boat is the installation process.

As a sailor, you'll most definitely rely on electricity in running various parts of your boat. In addition to the power needed to run the electronics that are of great importance for navigation and safety, electricity is essential for lighting, refrigeration, and running other appliances. But because you always sail deep in the water where there's no electricity, you need another source of power that we can use to charge the boat's batteries while we are out there on the water. This is where the wind comes in handy. You're already using wind to propel your sailboat, so it makes sense to use the very same wind to charge your boat's batteries and ensure that every part of your boat runs smoothly and meets your sailing needs.

Marine wind generators are more and more becoming a standard feature on sailboats. They are a great source of renewable energy and one of the most important things is to learn how to install a wind generator on a sailboat. Installing a wind generator on a sailboat is a process that must start with an assessment of the sailboat's power needs. Knowing the amount of power that your boat will consume in 24 hours will at least give you a rough idea of the size of the battery bank you require and how many amps your charging devices should produce.

You should also know where and how to install the wind generator's system. This will, of course, directly affect how well the wind generator's turbine converts the wind power into electrical energy. You should also ensure that the amount of battery storage available on your sailboat, as well as the controls available, is efficient in ensuring that the generated power doesn't go to waste.

In this article, we'll take a comprehensive look at how to install a wind generator on a sailboat and everything else you need to ensure that your wind generator works properly and efficiently.

Table of contents

The Importance of Using a Wind Generator on a Sailboat

Even though wind generators may not be of much help off the wind, they are increasingly becoming more appealing to sailors looking for an alternative source or extra power for their sailboats. The fact that they rely on the same wind that you use to move from one point to the other makes them quite a hit. Additionally, today's marine wind generators have undergone continuous improvement over the last few decades and are now well proven and quite reliable. This is exactly why wind generators are still common in sailing despite the advent of solar panels and hydro generators.

A wind generator will keep your boat's batteries charged at all times as long as there's wind. It doesn't matter whether you're at the port or out on the water, the wind generator will continuously pump out power even on cloudy days. That's not all; wind generators are cost-effective since they're maintenance-free and do not need any launch or recovery. More importantly, there are very powerful wind generator units that can produce more than 400 units of power, which is just enough to keep a fairly medium sailboat running and operating for 24 hours.

But just like with anything that has advantages, there must be some disadvantages. One of the most noticeable downsides of relying on a wind generator is that the power produced by the generator can significantly reduce if there's no wind. Most wind generators can manage to produce about 200 watts of power in wind speeds of 20 knots but things can even become worse when you're anchored at the port since winds are generally very low at the ports. As such, you may need an additional source of power such as solar panels, especially if your sailboat has heavy power requirements.

Installing a Wind Generator on a Sailboat

Installing a wind generator on your boat's charge system is a serious process that requires careful planning and attention. As we noted earlier, this process should start by first assessing your boat's power needs. You should be able to determine the amount of power that your boat and its appliances need to consume in at least 24 hours. This will certainly give you a clue of what you require.

The general idea is to ensure that you don't have to keep your boat's engine running so as to keep your batteries charged because this might not be enough in running your boat's appliances. In most cases, a boat's power needs are modest. Well, the boat generally needs power for lighting, running the navigation and safety equipment, refrigeration, and powering a stereo, if any.

The Equipment Required

One of the most important pieces of equipment required when installing a wind generator on your sailboat is the turbine. Generally speaking, the turbine should be functional at both medium and high wind speeds. You have to, however, keep in mind that even the biggest wind generator won't produce much power if the wind speed is below 8 knots. The turbine should be tough, reliable, and quiet. You certainly do not want a turbine that sounds like an approaching helicopter as this can be so annoying.

Given that early models are very noisy, three-bladed rotors are becoming more and more popular. They are smartly designed with CAD blades that significantly reduce the whistling and thrumming sounds that occur at the tips of the blades. These modern rotors are also designed to be more efficient and reduce friction through the use of permanent magnet alternators that allow speeds of the blades to be reduced, thereby reducing the noise levels considerably.

With that in mind, some of the best wind generators to go for include Air breeze, Eclectic Energy, Leading Edge, Rutland, Silentwind, and Superwind.

The Aerodynamics of Turbine Blades

Ensuring that power moves from the turbine's alternator and safely into your batteries may seem like a simple process. There are, however, aerodynamics involved and it only makes sense if you understand how they work.

In terms of the blades, they operate based on a similar principle or a plane's wing. There may be some differences but they are generally designed to produce optimum output. This means that the turbine blades should not go too fast as it can mitigate the wind generator's efficiency. The same applies if it is too slow. In essence, it works like a car gear so having very high or low gear can be inefficient. The idea here is that the airflow will become unstable if the blades are at very high speeds.

The best way to solve this problem is to rely on the "tip speed ratio". This technically describes whether or not the blade tips are moving faster than the actual wind speed. As such, the blade tips should be moving at 320 knots on 20-knot wind speed but there should also be the survival speed, which is just the right wind speed that is needed to produce the right amount of power to sustain your sailing needs.

The Amount of Power that Your Boat Needs

It's of great importance to budget for the amount of power to ensure that every facet of your sailboat is functioning properly. Of course, there are obvious appliances such as plotters, interior lights, and fridges. There are also navigation lights, engine monitors, entertainment systems, pumps, watermakers , gas alarms, electric winches, hydraulics, and many other things. You should also make a good margin that will have you covered if there's an emergency.

You should also consider other things such as air conditioning (though this may need fuel) as well as the type of sailing you're planning to do. Will you be sailing upwind or downwind? Well, such minute factors can significantly affect the amount of power that your boat needs. It is, therefore, crucial to determine a clear and accurate idea of how much power you need to generate to perfectly operate every part of your boat.

Mounting the Wind Generator

One of the most challenging things that revolve around how to install a wind generator on a sailboat is where to mount it. Location is very fundamental and can either positively or negatively affect how your wind generator operates.

The golden rule that governs the position of the wind generator is quite straightforward. It should be mounted in an area of the vessel where there will be no interruption of the flow of air or wind to the turbine from all directions. Generally, the wind generator is mounted on the boat's mast with two stays. You can easily raise or lower the wind generator if it is installed with a pivoting base. But if it is installed on a fixed mast, it can cause difficulty if you want to secure the wind generator when there's an impending storm.

And because the main aim is to optimize the output from a wind generator, there are a few important things to do. The most important thing is to ensure that it is very stable. This is because even a slight rolling or pitching might just be enough to rotate it away from the wind. The wind generator also requires clean air from all directions and as much as possible.

As you can see, these two principles seem to be at loggerheads given that you'll get more wind speed as you go higher but this may affect the stability of the turbines. With this in mind, mounting the wind generator on mizzen masts can be a good option but choosing to mount the turbine just above the cockpit is an even better option. The idea here is that it will be a lot easier to manually control the turbine if all other options of braking it doesn't work. Again, installing and maintaining the turbine overhead the cockpit is a lot easier than when it is mounted on the mizzen masts.

That's not all; mounting the turbine over the cockpit also means that the cables need to transport power from the turbine to the alternator are much shorter. This means that the wire diameter will be a lot smaller without necessarily affecting the voltage. The fact that the voltage can drop if the wind generator is mounted up higher on the masts should be particularly important.

This is because it can affect the overall performance of the wind generator and the power it produces and this means that the power supplied to your sailboat might just fall short. Again, a considerable amount of weight can be reduced if the turbine is mounted just over the cockpit. The cables will be reduced and the overall stability of the wind generator will be increased if it is installed overhead the cockpit.

Of course, you'll also have to install the electrics that come with the wind generator unit. For example, there's the controller that is used in regulating the power supply from the turbine, as well as the dump load resistor that is essential in absorbing any excessive current that may be produced when the batteries are fully charged. There's also an inline stop switch, which is essential in turning off the unit when it's not in use. Well, most of these installations are straightforward and are generally shown in the unit's installation guide.

Assembling the turbine should also be a walk in the park. Units do come with fasteners and are accompanied by installation instructions that are easy to understand and follow, thereby making the installation and assembling process a breeze.

So if you've decided to install the wind generator overhead the cockpit, which is our best location, you must find a perfectly sized pipe and mount it solidly at any corner of the stern. You have to ensure that you support the pole with at least some diagonal tubes so that it doesn't swivel. And if you are planning for an off voyage escapade, using the hose clamps to secure the main pole might not be the wise thing to do. This is because they'll most likely snap and twist as a result of constant vibration and miles of hard sailing.

Securing Your Boat's Wind Generator

With that in mind, you should also be prudent enough to secure the wind generator if there's a pending storm. As a sailor, you should be prudent, stay alert, and prepared in case there's a storm. The most important thing is to know the dynamic of the wind generator and how to apply electric brakes or even have the turbines lowered when there is a storm.

You can do this if the wind speeds are more than 15mph. This is of great importance in ensuring that the wind generator does not overheat or the blades do not break. You can also choose to remove the wind generator altogether and store it in a safe place.

All in all, the importance of having a wind generator on your sailboat as an alternative energy source can never be downplayed. This is a great source of renewable energy that will have your boat working perfectly well even if you are sailing in some of the remotest corners of the world. Just know how to install the wind generator, have it maintained, and protected when there's a pending storm and you'll be good to go.

Until next time, happy Sailing!

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I've personally had thousands of questions about sailing and sailboats over the years. As I learn and experience sailing, and the community, I share the answers that work and make sense to me, here on Life of Sailing.

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Best Wind Generators for Sailboats of 2024

Sailing gives us freedom: we don’t need a motor or fuel to travel the oceans. That freedom isn’t absolute. Most sailors still rely on electricity for lighting, refrigeration, small appliances, and to run the electronics that we rely on for navigation and safety. That means we need batteries, and if we rely on batteries, we have to charge the batteries. Since we’re already using the wind to move us from place to place, it makes sense to use that same energy source to keep our batteries charged up and ready for action. Wind generators are increasingly becoming a standard feature on cruising sailboats, and a wide range of products have emerged to meet the demand. This review of the best wind generators for sailboats will help you select the product that best meets your needs.

For more of our top sailing gear recommendations, check out the Best Solar Panels for Sailboats .

Quick Answer - The Best Wind Generators for Sailboats

  • AutoMaxx DB-400 View at Amazon
  • Primus Wind Power Air-X Marine View at Amazon
  • Nature Power 2000W View at Amazon
  • Missouri General Freedom II View at Amazon
  • Nature Power 400W View at Amazon

Comparison Table - Best Wind Generator for Sailboats

Reviews - the best sailboat wind generator, automaxx db-400.

  • Optimal Power AT : 28 MPH
  • Rated Output : 400 Watts
  • Voltage : 12V
  • Minimum Wind Speed : 6.7 MPH
  • Maximum Wind Speed : 112 MPH
  • Blade Diameter : 48”
  • Automatic Braking Controls Your Speed In High Wind
  • Built-In Charge Controller And Overcharge Protection
  • Maximum Power Point Tracking Gets The Most Power From Any Wind


If you want to try out wind power without spending a fortune and you’re looking for a basic, versatile device suitable for use on land or water, the Automaxx DB-400 is what you need. The durable polypropylene and fiberglass construction of this affordable wind generator resists corrosion and all parts are protected from both water and UV radiation. 

Some reviewers complain that these units fail to spin at the advertised cut-in speed and generated less power than expected, but many others reported performance consistent with expectations. It’s difficult to say whether these deficiencies are caused by installation issues, inconsistent products, or excessive expectations. It’s always good to test your unit on arrival and assure that it’s doing what it needs to do! 

As with all units listed here, you’ll need a mounting pole for this generator, but other than that it’s ready to install: the charge controller is built-in and you can wire it to your battery pack and forget about it!

Primus Wind Power Air-X Marine

  • Weight : 13 lb.
  • Voltage : Adjustable Output
  • Minimum Wind Speed : 8 MPH
  • Maximum Wind Speed : 110 MPH
  • Blade Diameter : 46"
  • Easy Installation: Wire Directly To Battery Bank
  • Auto-Brake Regulator Slows Blades When Battery Is Charged
  • Built-In Charge Controller
  • Marine-Specific Design And Materials


The Air-X Marine is the Rolls-Royce of small wind turbines. It’s made entirely in Colorado, and the relatively high price is reflected in the features and overall quality of the unit. It costs three times as much as an entry-level unit with the same output rating, but you get what you pay for.

The unit squeezes its mechanical and electrical components into a tiny ultralight package that is ideal for higher mounts and requires much less effort to secure than heavier bulkier units. You get a sophisticated built-in charge controller with external indicators to tell you when you are charging and when your batteries are full, and the unit is fully use-ready. Just wire it to your battery bank and you’re ready to charge.

This unit is one of the most popular sailing wind generators on the market for good reasons. It’s quiet, efficient, and gets the job done with no extra effort and very little maintenance.

Nature Power 2000W

  • Weight : 38 lb.
  • Optimal Power AT : 45 MPH
  • Rated Output : 2000 Watts
  • Voltage : 24V
  • Blade Diameter : 70”
  • External Controller With LCD Output Display
  • Industrial-Strength Aluminum Body With Marine-Grade Coating Means This Generator Will Last Your For Years To Come
  • Electromagnetic Brake System For Overcharge Control
  • Low-Noise Carbon Fiber Blades


This is the big boy: a full-on 2000 watt marine wind turbine, ready to install and power up some serious juice to feed those hungry batteries. The unit is designed to be effectively maintenance-free, with a coated cast aluminum body and carbon fiber blades engineered for quiet operation. There’s an external charge controller with an LCD output display to let you know what you’re generating and what your charge status is. Electromagnetic braking prevents potential damage from high winds and overcharging.

You’ll need 45 knots of wind to generate the full 2000 watts, but even at lower speeds, you’ll be putting out enough power to keep your batteries topped up. Paired with a solar array, this wind generator will give you all you need for complete energy independence!

Missouri General Freedom II

  • Weight : 59 lb.
  • Blades : 11
  • Optimal Power AT : Not Specified
  • Voltage : 12/24V
  • Minimum Wind Speed : 6 MPH
  • Maximum Wind Speed : 125 MPH
  • Blade Diameter : 62.5"
  • Rust-Proof Galvanized Components With Zinc-Plated Hub Make This Wind Generator Almost Indestructible
  • 28-Magnet Generator For Maximum Power
  • Aerodynamically Tapered Carbon Fiber Blades


If you’re looking to step up to a higher-output wind system without spending a fortune, Missouri General delivers with the Freedom II. This unit adopts a radically different design philosophy, featuring 11 carbon fiber blades to get maximum power out of wind in the lower end of the charging range. The Freedom II uses a permanent-magnet generator and several other unique design features to achieve high efficiency and durability.

This unit is quite inexpensive on a price-for-power scale, but it does not arrive installation-ready and you’ll have to add a charge controller, a dump load to protect your battery from overcharging, and cables. You’ll probably also need to have an electrician install the unit to assure that those components are correctly connected and working as they should!

Nature Power 400W

  • Optimal Power AT : 27 MPH
  • Minimum Wind Speed : 7 MPH
  • Marine Grade Coating And Sealing For Durability
  • Low-Noise Carbon Composite Blades
  • Smart Charge Controller For Maximum Output


Nature Power turbines are designed specifically for marine use and offer a durable, corrosion-resistant cast aluminum body and whisper-quiet carbon fiber blades. There’s a specialized electromagnetic braking system designed to keep the unit within its electrical and mechanical limits without the wear and tear associated with mechanical braking and a smart controller that adjusts the voltage-to-current ratio for peak charging efficiency. The low weight of the unit makes it ideal for mast installations or other high mounts. As with any relatively low-output wind generator, you can’t expect to rely on this unit for all of your charging needs. It’s very well suited to use in conjunction with solar panels: on hot, still days the sun does the work, and when the weather turns sour or you’re out at sea, the wind will kick in with its share. This is an excellent choice for the wind component of a combined solar/wind generation system.


It’s important to recognize that while wind power is useful, it isn’t magic. Most modern wind generators will begin generating power in quite light winds, but the output may be minimal and you’ll need sustained higher winds to deliver the charge you want.

If you’re moving downwind, you may get less charge than you expect: if the wind is at 20 knots and your downwind speed is 8 knots, your wind generator will be effectively receiving 12 knots, not 20! Many sailors find that a wind generator combined with a solar array is the most effective power solution, and some add a towed generator that generates power when dragged through the water as an additional option. The power mix that best suits you is something you’ll have to decide, but there’s a good chance that wind will be part of it!

Read through these things to consider to get a better sense of how to choose which wind generator is right for you so that you can get back on the water and enjoy the wind in your hair without worrying about losing electricity unexpectedly!


A common complaint about wind generators is that they don’t deliver as much power as expected. This is more often a problem of simple physics than an issue with defective units or improper installation. The power delivered by wind increases with the cube of the wind speed, meaning that (keeping things very simple), a 20-knot wind delivers 8 times the power of a 10-knot wind. If you expect a unit that’s rated to deliver 400 watts of power at 28 knots of speed to deliver 200 watts at 14 knots, you will be disappointed, and it won’t be the unit’s fault!

While most units will cut in (start working) at 6 to 7 knots, don’t expect to generate measurable power until you reach 10-12 knots. Remember that if you’re on a downwind heading the apparent wind – the wind speed actually experienced by your generator – will be wind velocity minus hull speed. And remember that most anchorages were chosen because they are protected from the wind.

All in all, you are likely to find yourself generating less power than you expected. That doesn’t mean the installation is useless: it will contribute, it will charge your batteries while you sail, and if used in conjunction with solar panels, it can meet your charging needs. It’s a useful tool, not a magic bullet!


Your choice of generator will be affected by your installation options. Some sailors opt for masthead or mizzenmast installations, which can receive up to 50% more wind than lower placements but which are less accessible for maintenance and involve longer cable runs with more resistance. If you’re looking at such an installation, you’ll want a lightweight, low-maintenance unit. Most sailors prefer installation above the cockpit or transom, high enough to keep blades away from people and equipment but low enough for easy access and relatively short cable runs.


Manufacturers claim very high maximum wind tolerances, but these are often based on wind-tunnel tests using controlled wind from a single direction. Turbulence can increase the burden on the device, and if you’re expecting wind in excess of 50 knots, taking down the generator is a wise precaution.


Noise and vibration were once huge problems with wind generators, with users reporting everything from a repetitive whump to a screaming howl. Modern construction and improved blade design have made turbines much quieter, but noise and vibration can still be issues. It’s great to generate power while you sleep, but not so great to have your generator keeping you awake! You may wish to check out some working installations to get a sense of how much noise is involved.

If you’re wondering whether to go with wind or solar, All At Sea and eMarine have useful articles weighing in on that eternal debate. For more information on Wind Generators, try these articles from Yacht Unlimited and Sail .


About those numbers.

Rated Output is the maximum number of watts a unit can put out under ideal conditions. These numbers are based on wind tunnel tests and are rarely if ever achieved in the field.

Minimum (or “cut-in”) Wind Speed is the wind speed required to turn the blades. Very little power will be produced at this level.

Maximum Power is achieved at a specific target wind speed. Most units are designed to begin braking or “cutting out” power at speeds above this level.

Blade Diameter is the end-to-end distance between blade tips. You’ll need to consider this distance when mounting the unit to keep the blades well clear of any obstructions.

Voltage is the unit’s output voltage, which needs to match the voltage of your battery array.

Maximum Wind Speed is the highest wind the unit can survive. This may be substantially reduced by turbulence!


Charge Controllers are devices that regulate the output of your generator to maximize the charging of your battery. Some units have built-in controllers with different levels of sophistication, and others do not.

Braking may be mechanical or electromagnetic and is used to assure that the unit’s rotation will not exceed its mechanical or electrical limits. Electromagnetic braking is claimed by some to produce less wear and tear.

Tracking Systems keep the blades facing the wind and keep the unit from spinning on its mount axis, which will twist the cable and damage the installation.

Blades may be fiberglass or carbon fiber, with more expensive units usually using carbon fiber. Many blades are designed to flex and shed wind if wind velocity exceeds design limits.

Corrosion Resistance is achieved by using a variety of coatings and materials. Marine environments place an aggressive burden on materials and both exterior materials and sealing are very important to keep units working.

A Dump Load is a device that diverts excess power to resistors that radiate it as heat, protecting batteries from overcharging.

For more of our top sailing gear recommendations, check out these popular buyer's guides:

Sailboat Anchors

Sailboat Winches

Sailing Shoes

Solar Panels for Sailboats

Bilge Pumps

Better Sailing

Best Marine Wind Turbine Generators For Boats

Best Marine Wind Turbine Generators For Boats

Unless you are happy burning endless amounts of fuel, a marine wind turbine is an essential item fr an offshore cruising sailboat. In this article, we will be taking a look at some of the best wind generators for your boat.

Today’s cruisers carry so much electrical equipment that wind turbines, solar PV arrays, and hydro-generators are becoming more and more common. The marine wind turbine has been around for several decades now and has gradually been refined to give a much higher degree of efficiency. Better alternators, CAD-designed blades, life-sealed bearings, and smart charge controllers make the latest devices more reliable, quieter, and safer.

Things To Consider When Shopping For a Marine Wind Generator

Horizontal axis vs. vertical axis wind turbine.

The majority of marine wind turbines are horizontal axis devices, either upwind or downwind driven. These are powerful and, as such, need speed and/or charge output limiters, or they can burn out the batteries and self-destruct in storm-force winds. Vertical axis turbines are more suited to trickle charging – usually connected to one or two batteries up to 200Ah capacity. The blade design means they are unidirectional and thus have no need for a bulky tail fin to point them into the wind. They are also considerably quieter than most horizontal turbines and much easier to mount and install.

Vertical and Horizontal Axis Boat Wind Turbine

What Blade Design Should Your Wind Generator Have?

Modern turbines usually sport a one-piece, cast aluminum body and, commonly, three aerodynamically designed plastic/composite blades. One of the first of these models, the original Air-X, worked exceptionally well, particularly in high winds. However, it was so noisy that neighboring boats frequently complained, leaving the owner the option of turning it off or moving well away from other boats. Since then, CAD-inspired blade design has significantly helped to reduce ambient noise levels, although none could be termed silent.

Once your battery bank is fully charged, additional energy from the turbine needs to be dissipated, or the turbine stopped. Low power vertical-axis models don’t usually produce enough to warrant fitting a regulator, but the more powerful models all need some form of charge limiter to prevent overcharging. The simplest form of regulation is to switch it off when no further charge is needed. If you electrically disconnect the turbine, however, it can either damage the alternator diodes or carry on spinning at an even higher speed, so most are electrically ‘braked’ by shorting out their output wires, and a high-current switch is usually provided for this action.

If you leave a turbine running unattended, you’ll need an automatic regulator, and there are two systems commonly available. The first lets the turbine continue to spin and produce power, diverting any that isn’t needed into ‘dump’ resistors to burn off the excess as heat. While effective, it is pretty rudimentary, and you have to be careful where you mount the bulky resistors, which can get quite hot. Alternatively, some use this unwanted charge to pre-heat the hot water tank via an immersed element. Other turbines incorporate ‘pitch control’, comprising feathering blades that either flatten out or turn edge into the wind to regulate turning speed at high wind speeds.

Charge Controllers

A variety of automatic charge controllers are available, some more sophisticated than others, and you don’t necessarily need to use one from the same manufacturer unless it specifically states that you must. A basic model has a voltage-sensitive on/off switch that will trigger at a pre-set threshold battery voltage. The more useful controllers have a built-in display for monitoring turbine output and battery condition. Some can also accept and distribute charge from other sources, such as solar or hydro generation.

>>Also Read: Best Portable Boat Generators

Here Are Some Of The Best Best Marine Wind Turbine Generators For Sailboats

Auecoor solar wind hybrid system – best marine wind turbine generator on amazon.

The Auecoor Solar Wind Hybrid System is the best system to hook your boat/sailboat with. It is a hybrid system that utilizes both solar and wind power generation. This system is highly efficient, it is designed to withstand heavy wind loads, and it is ready to install on a boat/sailboat. They also produce many models to serve your needs, from 500 Watts all the way up to 2000 Watts in optimal weather conditions. 

All models come with a 400-Watt wind turbine generator, and then you can add as many 120-Watt high-conversion, waterproof and flexible solar panels as you need. This unit is also pretty easy to install. The solar panels are easy to transport, and they come with pre-drilled holes for easy installation. This is my personal favorite kind of setup and the one that I believe is the best for any serious boater. It provides 2 renewable sources of power that guarantee that whether you are making a passage or liveaboard in a nice beach somewhere, you will have dependable power as if you were living connected to the grid.

Auecoor Solar Wind Hybrid Generator System - Best Marine Wind Turbine Generator on Amazon

Air Breeze 200

Although the latest generation Air Breeze, made by Primus Windpower, provides an increased charge output, it is also quieter and should apparently outlast its predecessors. Its low start-up speed (4.2kn) means that, on average, it should be able to produce more energy than some higher-rated turbines over long periods of low-to-moderate wind speeds. Though it only has a maximum output of 200W, its output has been optimized to provide a more constant charge in typical northern European and Mediterranean wind conditions. The new Air Breeze weighs less than 6kg and has an integral electronic charge controller and over-speed regulator, rendering bulky dump resistors unnecessary and making installation considerably quicker and easier.

Leading Edge LE-300 or LE-450

A UK company, Leading Edge supplies wind turbines for both marine and terrestrial installation. The LE-300 and LE-450 are available in 12V, 24V, and 48V versions and are remarkably light, making them ideal for sailing yachts. The output is DC via two wires, and a run/stop switch is supplied that breaks the turbine by shorting the output. The units can also be supplied with charge controllers, a dump load style regulator that allows you to leave the turbine on 24/7 without the batteries overcharging. The three-bladed LE-300 is very light (6kg) and one of the quietest of the three-bladed models. However, its output is poor for a horizontal-axis turbine, although it starts spinning in the gentlest breeze. The five-bladed LE-450 is more powerful (105W at 15-knots) while remaining quiet and stable. Another great feature of this wind turbine is that it is the quietest marine wind generator tested.

Rutland 1200

The latest in the Rutland wind turbine line up, the 1200, is Marlec’s answer to the third generation three-blade, permanent magnet turbine models. More powerful than the 914i, it features a ‘Tri-namic’ blade design, which is said to provide a low start-up speed, very quiet running, and more power towards the top end of the wind scale. With a claimed peak production of 483W (that’s 35.5A at 12V) in 29 knots of wind, the 1200 can also supply a very useful 40W of power in just 10 knots of wind – a more realistic average in most waters.

The 1200’s charge controller has dual outputs for two separate battery banks and can accept up to a 20A solar PV supply. It reduces the turbine speed automatically after winds reach 30 knots, regulating the charge without using dump resistors. It also has an integral start/stop switch and can support a remote display, which connects to the controller via a simple Ethernet cable.

Eco-Worthy Wind Solar Power Kit

What can I say? I just love a good wind-solar hybrid power generator. With this kind of setup, you won’t have any problem charging a 12V or 24V battery bank with this hybrid system throughout the day, in any weather condition. The Eco-Worthy Wind Solar Power Hybrid generator can guarantee enough power for you to remain comfortable on your boat and operate any appliance you need and enjoy your time on the boat. You can purchase any model that fits our needs starting from 400 Watts all the way up to 1,400 Watts. However, always buy a generator that has a higher power output than you think you will need because you almost always won’t be in optimal climate conditions.

ECO-WORTHY 500W Wind Solar Power Kit: 400W Wind Turbine Generator+ 100W Monocrystalline Solar Panel for Off Grid 12 Volt Battery Charging

The blades on this German-built device are very steeply pitched towards the hub, resulting in an early start-up in lighter airs, and they also incorporate tiny fins along their length, said to quieten them at high speed. The blades have a kinetic rotor pitch control system designed to feather them in very high winds, not unlike the large terrestrial wind turbines. With a charge controller in the circuit, the turbine can therefore be left spinning in all weathers without worry. The output is two-wire 12V or 24V DC, so it could, in theory, be directly connected to a battery bank.

It can also be used with a simple short-circuit stop switch, which will slow it down enough to be tied off. The Superwind 350 can also be supplied with a 40A SCR Marine charge controller, which has two independent, diode-isolated outputs for start and service battery banks and dissipates unwanted energy via two large, wire-wound dump resistors. Nominal power is 350W at 25 knots.

Silentwind 400 Wind Generator

As fitted to all boats in the Volvo Ocean Race and featuring ‘Silent Power Blades’ – hand-laminated carbon blades, successfully tested at hurricane speeds – the latest Silentwind 400+ has improved wind tracking and earlier start-up than its predecessor, the 400. Featuring aerodynamics combined with a three-phase Neodymium-Iron-Boron permanent magnet generator, the 400+ is said to have a start-up speed of only 4.3 knots and a peak output of 420W at 30 percent less rotation speed than other 400W generators. 12V, 24V, and 48V models are available.

The Silentwind has a 3-wire AC output, which connects directly to the matching hybrid multi-stage charge controller that enables trickle charging and the connection of up to 20A of solar PV power. An adjustable boost function increases performance and optimizes the power yield, while the LCD displays all the important charge information. When the batteries are fully charged, the turbine automatically stops or switches to trickle charge mode with a significant reduction in rotation speed. It can also be stopped (braked) manually with the built-in switch on the controller.

Rutland 504 Wind Marine Generator

The Rutland 504 is a small and lightweight (just 3.5kg) mini-horizontal turbine from the UK off-grid power specialist, Marlec. The earlier model (503) has proven to be extremely popular over the years, in both the small leisure craft market and in commercial applications such as remote street lighting and signage, buoy lights, ATON power, etc., and the 504 should prove equally so. Like its predecessor, it is very compact, and its blades are ‘encapsulated’ – i.e., they have a protective ring around them to prevent limbs and clothing from getting caught up in the blades. Its output is better than that of the vertical-axis turbines but nowhere near the more powerful generators listed above. It is, however, notably quieter.

Typical output is around 15 knots of wind is 12W (1A @ 12V), doubling to 24W/2A at 20 knots. It also has a lower start-up speed than the vertical turbines and, although it takes around 10 knots of wind to provide any useful charge, its low-friction alternator compensates for the gusts by ‘smoothing out’ its output. The 504 does require a charge controller if it is to be left unattended.

 Leading Edge Vertical Wind Turbine

The LE-V50 and V150 vertical axis turbines are compact, lightweight, and virtually silent. The V50 measures 270mm dia x 456mm high and is intended for trickle-charging batteries or for running low-power devices. Available in 12V, 24V, or 48V versions, it has a nominal output of 12W but a peak of 70W. In typical waters, this results in an average charge of 0.5-1.0A @ 12Vdc in a fresh breeze. The bigger V150 model has a peak output of 200W but a more typical rating of 24W in wind speeds of 15 knots – double that of the V50. 

Leading Edge wind turbines were originally designed to generate power for industrial data monitoring equipment in very remote areas where there is no other power source; these often supplement solar PV arrays in an off-grid sailing situation.

>>Also Read: How to Charge a Sailboat Battery

Final Thoughts

There you have it; these are the best Best Marine Wind Turbine Generators for your boat or sailboat. Whether you are boating/sailing during your holidays or liveaboard full-time, a reliable power source is necessary. It will always provide you with the necessary power to operate your essential electronics, and depending on the power output you go for, it can fill up your batteries without an issue. Remember that when you are out in the water, it will be near impossible that there won’t be enough wind for a marine wind turbine to generate power, so you will rarely be without power. However, that’s why I always sail with both a wind generator and solar panels on board. 


Peter is the editor of Better Sailing. He has sailed for countless hours and has maintained his own boats and sailboats for years. After years of trial and error, he decided to start this website to share the knowledge.

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MarineKinetix MK4+ Marine Wind Generator

Marine Kinetix MK4+ Wind Generator

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Product Description

The marine industry’s highest rated wind generator.

MarineKinetix MK4+Wind Generator, including Controller - For Lead Acid, AGM, Gel and Lithium Batteries. 

The marine wind generator with a 100% satisfaction guarantee, and the industry's best 3-year limited warranty.   

Double click on the large picture above to scroll through scores of pictures of fellow bluewater cruisers worldwide relying on power from their MarineKinetix wind generator.  See a recent blog from a seasoned bluewater cruiser and Salty Dawg Rally organizer who solved his large energy demands using a combination green energy, including an MK4+ wind generator  here .

The MarineKinetix Wind Turbine has become one of the most popular marine wind generators available due to its advanced technology, superior output, and  super-quiet design.  The MarineKinetix is now considered to be the benchmark among serious cruisers. With a 30% to 50% larger swept area than the most popular marine wind generators, it is simply capable of intercepting more of the available windstream, and capturing more power.  Its sophisticated charge controller displays all the data, including Amps, Watts and Volts, and assures that the power makes it safely and efficiently into your battery bank through a 2-stage smart charging process. No need to buy extra meters , rectifiers, stop switches, or load diverters.  These are integrated into our smart controller. Just add your mounting pole and the wiring to your batteries, and you are ready to start producing green energy.

We are celebrating our 10th year of serial production, and our 6th year producing our latest design, the MK4+ Marine Wind Generator. The MK4+ replaced the popular MarineKinetix MK450.   

The MK4+ includes the following upgrades:

  • The Wind Generator body is smaller and even lighter than the original design.  This is accomplished with a shorter, but more upright tail, with a greater surface area, and lower polar moment, for faster, and truer wind-tracking.  This lowers yaw error and improves performance in shifting winds.
  • Upgraded asymmetrical pole-shifted rotor with 12 (vs 10) neodymium rare-earth magnets for more power and zero cogging.  Bread-loaf magnet design for optimum air gap.
  • Upgraded 36-slot stator with premium heavy-gauge copper windings.
  • A new and improved anti-corrosion marine grade finish, which starts with a new high-pressure die-cast magnalium body, which is DACROMET pre-treated, then coated with a high-quality corrosion-resistant thermoset marine powder coating. No other marine wind generator uses this anti-corrosion process.
  • New double yaw bearings.  Double bearings provide a larger "wheelbase" for the yaw joint, which reduces any free play, which can contribute to vibration and noise.
  • Improved silicone o-rings which are totally weather-proof.
  • Improved Aero'coustic 20% carbon-fiber filled injection molded blades, which are 18% more rigid than the previous design.
  • All new Hybrid Wind/Solar Charge Controller with LCD display - with integrated battery monitor, stop switch, ammeter and watt meter. (no need for expensive monitoring panels).
  • Patented 2-Stage PWM Charge Controller - Increases the efficiency of the charge cycle and tops up the batteries quicker and more fully.
  • Improved high-precision hub, with tighter blade fastening tolerances, for perfect blade alignment and whisper-quiet operation.
  • Improved molded urethane isolator pad, which fits between the pole and the collar.  Molded in "cap" allows it to stay put during assembly.

The great performance of the original MK450 remains.  The above changes are incremental improvements designed to improve start-up speed, ease assembly, resist corrosion, and improve real-world output. The MK4+ is truly a world-class micro wind generator.

Tired of talking to non-technical vendors that don't understand the nuts-and-bolts of what they are selling?  Give our technical rep, Jeff, a call directly at (864) 275-7837 to answer any questions. Read on to see what really matters when considering wind power for your boat.

Why Consider the MarineKinetix Wind System?

The MarineKinetix Wind Turbine System is simply one of the best performing small wind generator system available for marine use. That is quite a boast, considering all the small turbines out there with catchy names, and bigger advertising budgets, but read on to find out why we believe you'll soon agree.  

The MarineKinetix MK4+ is a simple to install, hands-off, super-quiet wind-energy production system made especially for the marine environment. This high-output, low start-up-speed system utilizes the best of European wind-science in its design. In addition to its leading-edge high-output dual-bearing 3-phase permanent magnet generator, it also features world-class aerodynamic efficiency with its carbon-filled aero'coustic rotor blades, which have been optimized for high torque, low rotational inertia, and exceptionally quiet output. These features, coupled with the included "hands-off" microprocessor-based charge-controller, and its exceptionally low yaw-error, make for what we think is the best marine wind generator system on the market. See why below.

The MarineKinetix MK4+ wind turbine system is a leap forward in wind turbine science. It makes the intelligent compromise between low-speed start-up and high-speed output, all at a realistic and cost-effective price.

  • A complete 400 Watt Wind System (includes generator and controller)
  • 1330mm Blade Diameter (1.3M) - Swept Area = 1.39 Meter
  • Weighs only 17 lbs., about HALF the weight of certain competitive designs, without compromising performance thanks to a magnalium body, an asymmetrical rotor, and high-energy-density Nd2Fe14B rare-earth magnets 
  • Lightweight 300g 20% Carbon Fiber Polymer Composite blades
  • Available in 12V, 24V and 48V designs
  • Compatible with VRLA, Gel, AGM, Lithium, and Lithium Iron Phosphate (LiFePO4)
  • Industry Standard Mounting - Mounts to 1.5" Schedule 40 pipe (1,9"OD), or 48-50mm OD tubing
  • Double marine thermoset powder-coat finish, over a DACROMET self-healing aluminum-zinc nano coat
  • 5.8 knot start-up speed (begins producing power), 6.7 knot cut-in speed (begins charging 12V/24V batteries)
  • Aero'coustic 20% Carbon Polymer Blades
  • Super-silent - LAeq 35dB at 5M at 10 knots (about the same as a running fridge)
  • Direct drive, 3-Phase dual-bearing AC permanent magnet synchronous generator
  • Neodymium Iron Boron (Nd2Fe14B) permanent magnet synchronous design
  • 12 pole rotor, with bread-loaf magnet profile, and asymmetrical pole-shifted magnet placement, for low cogging torque
  • Automatic back-EMF braking at full charge (or 40 knots overspeed protection)
  • IU PWM Charge Control Profile with hysteresis braking
  • Microprocessor controlled auto set-point for AGM, Gel, VRLA, Flooded,  Lithium, and Lithium Iron Phosphate (LiFePO4)
  • Requires no diode packs, diverters or external resistive loads
  • Over-charge, over-current, and automatic over-speed protection
  • Integrated heavy-duty yaw-axis slip-ring, allowing continued >360° limitless rotation
  • Simple installation, and user-serviceable components
  • Includes micro-processor charge controller with "at-a-glance" LCD charge, voltage, amperage and wattage status
  • Fully compatible with existing solar installations (no conflict with other existing charging sources)
  • 3-year limited warranty, and 30-day 100% satisfaction guarantee
  • Full lifetime tech support by phone or email with purchase

What is included in the Wind Generator kit?

  • MK4+ Wind Generator
  • Smart Charge Controller with integrated performance monitor and stop switch
  • Blades (x3) with SS blade mounting hardware
  • Hub, with mounting nut 
  • Snap-on molded plastic nose cone
  • SS Hardware to mount clamping collar to your pole
  • Silicone rubber isolator (goes between pole and collar)
  • Assembly allen key tools
  • Instructions

What accessories are available from Marinebeam?

  • 50A Resettable Circuit Breaker
  • Pole Mounting Hardware Kit
  • 3-Piece Pole Mast 
  • 10/3 Marine Cable
  • Spare Parts

Details About the Unique Marine Kinetix Technology:

Our solution is a systems-approach to wind-energy production on-board. The MK4+ system couples several forward-thinking ideas into one "wind-system" which is easy to install, affordable, and maximizes energy production.  We did this by first starting with a low-friction, high-energy-density 3-phase rare-earth magnet rotor design, which came from concepts and materials used in leading-edge green-energy vehicle research. The Neodymium Iron Boron (Nd2Fe14B) permanent magnet rotor uses patented technology licensed from Sumitomo/Hitachi in Japan.  This is the same type of PM rotor design used in the AC synchronous motors in the Chevy Volt and other electric vehicles.   The rare-earth magnetic rotor is a key to its performance and low noise and vibration.  We now utilize an asymmetrical pole-shifted rotor design, which is a advanced method that replaces the heavy mass and cost of older skewed rotor designs, while providing the same advantage of reducing the cogging torque, and improving low speed performance.  We coupled this super-efficient machine with a biomimicry-inspired carbon-fiber-filled blade set, which makes for super-quiet performance while improving overall aerodynamic power.

The results are a turbine that outperforms others in start-up speed, output, and noise.  While other systems are idle, the MK4+ is generating. While other systems are disturbing the peace, the MK4+ is virtually silent. While other systems are struggling to charge, the MK4+ is topping off.

What are the important factors in wind energy production?

Physics dictates the basic performance of all wind generators.  In fact, the power available to any wind generator is a function of the square of the diameter (swept area of the blades) and the cube of the wind speed.  The ability of any specific wind generator to the capture wind efficiently depends on the length of its blades (its swept area) and its Tip Speed Ratio.   Tip Speed Ratio refers to the speed of the tips relative to the speed of the wind.  If the blades spin too fast relative to the wind, they begin to begin to look like a solid disk to the wind, and air piling up in front of the blades effectively blocks the wind behind it.  On the other hand, if the blades spin too slowly, much of the wind passes through the gaps between the blades, and the energy is lost forever.  So, swept area and blade design are the most important areas which the wind generator manufacturer can control.  While the MK4+'s blades are only 8 to 9 inches longer than the typical blade, they sweep as much as 40% more area than the competition.   With a nearly perfect tip speed ratio due to the computer-modeled and simulated blade design, and the impedance load-source matching of the controller, the MK4+ has a higher energy capture compared to most other designs. 

Because of the cube relationship of wind speed to power production, wind speed is absolutely the most important factor in wind energy .  There is no getting around the physics of that.  There is 27 times more power in a 15 knot wind than a 5 knot wind.  The key takeaway here is that regardless of the technology, you need good wind to get good performance from a wind generator .

What affects the ability to maximize output power capture shown above?

Wind generator power is dependent on wind speed, battery acceptance rate, and applied load , so a variable load and a discharged battery was used to characterize the absolute capture power for the data above.  As the wind increases, your wind generator will already be charging full-time, and the battery bank's acceptance-rate, in amps, will decrease as the battery charges and its voltage increases.  So, it is important to understand that by the time the wind is blowing 20 knots or more it is likely your batteries will not be capable of accepting the full amount of amps that any generator can provide.  This is good.  It means that your batteries are reaching a full state-of-charge, and that you have the headroom in power to cover any other loads as they arrive, without further discharging your batteries.  At the end of the day, it is best to think of a wind generator as a free-energy variable power source, whose output changes day-to-day depending on the available wind and the presence (or absence) of downstream electrical loads that it requires to generate power.

Read the following pages to learn about the MK4+, and view the video below to see how it performs against a much more expensive wind generator at very low wind speeds.

Our Integrated "Wind-System": Many popular marine wind generators are essentially sold in kit form, with the user left to decide what method of control they need to get the power into their batteries effectively.  Alternatively, some turbines have an included charging set-up, but offer what is essentially a simple automotive voltage regulator and a load diverter.  This can be a real problem for those wanting to optimize charging and protect their expensive batteries.  It is not enough to just generate efficient and effective power at the generator head. It is just as important to get that power effectively into our battery bank, and to regulate that power based on the battery's specific demands for voltage and current throughout its charging cycle.  By use of an IU charging profile, the system not only can be more efficient, but can also significantly prolong the life of the batteries by preventing overcharging.  Typical load diverter type controllers can only charge your battery to about 80% State-of-Charge (SOC).  This partial cycling is particularly bad for your batteries. Combining the Low Start-Up Speed "Tortoise Approach" with the High-Power "Hare Approach": Having seen both real-world performance in various anchorages around the world, as well as published performance testing over the years, we realized that the best approach out there on the "real water" was to apply leading-edge technology to each component of the system to find an intelligent compromise between the Tortoise Approach and the Hare Approach to wind energy production. A small wind-system that is capable of making power in low wind speeds can take advantage of a long day with low wind speeds by putting small amounts of power into the battery consistently throughout the day and night (the Tortoise Approach). On the other hand, a larger system can take advantage of big gusts or heavy wind by making tons of power very quickly (the Hare Approach).  The perfect solution for us cruisers would be a two-stage turbine that could be the Tortoise in low wind speeds, or protected anchorages, and could be the Hare in a high-velocity wind environment.   By leveraging leading-edge technologies to make incremental efficiency improvements in each of the discrete components of the wind system, we achieved a "sum of the parts" that meets our goals for an ideal marine wind system in-board.   We believe it is the best marine wind generator on the market for those sailors wanting a high-quality, hands-off, high-output, and super-quiet system.  Our real world data and feedback from our customers backs up that claim.  Read on to see how we did it. The Blade Set: We have found that the practical key to consistent production on-board is to start with a large 1.39 meter swept area, and then to apply leading-edge technology to the blade set to extract the maximum amount of energy.  Swept area is the most critical aspect of energy capture, and the bigger the swept area, the more power, period.  Blade length defines the swept area (Area= π r 2 ), and typically the longer the blades, the stronger and heavier they must be to withstand the exponential increase in torque.  The MK4+ solves this issue by using a unique 20% carbon fiber molded blade that is not only long and rigid, but extremely light as well (<300g).   This allows us to produce a blade that is up to 9" longer than the competition, but it weighs much less, and sweeps up to 40% more area. 

We also focused on the airfoils to get a super-efficient, super-quiet, Aero'coustic blade that gives exceptional power while maintaining low-speed start-up capability.  This way the turbine can take advantage of all-day energy production, but also can generate more serious power when the winds pick up.  It doesn't do much good to have great potential generating capacity if the blades never turn in the real world.  Compare our start-up and output to the competition, and you will see the distinct advantage. Details of the Design: The blade and tail design focuses on several key strategies:

  • Low Start-up Speeds
  • Very Low Rotational Inertia
  • Very Low Noise at Optimum Tip Speeds
  • Very Low Yaw Error
  • Optimized Tip-Speed Ratio (the ratio of the speed of the tips to the speed of the wind)

While our carbon-fiber reinforced blade set has an extremely low rotational inertia, a strong and lightweight blade is only part of the story.  The starting torque on a wind turbine is generated in the blade area closest to the hub, while the power producing torque is produced in the blade area closer to the tips.  By use of German-engineered computer modeling and simulation, a variable blade profile was produced that can react quickly in low wind speeds, yet produce high torque and optimal tip-speed ratios at high speeds.  The blades are produced in a solid-model-patterned single-cavity injection-molding tool, so that each blade is identical in weight and profile.  Using a 20% carbon-fiber filled polymer makes the blade very light, durable, and repeatable. Lightweight blades have a low rotational inertia, which is critical in wind-energy production in the real world. Low rotational inertia allows the blades to accelerate more quickly, which means they can spin faster in lower wind speeds, therefore keeping the tip-speed-ratio (the speed of the tips vs. the speed of the wind) more constant.  Operating closer to the optimum tip-speed-ratio during gusts also allows the turbine to improve energy capture from these sudden gusts as well. Another way to increase aerodynamic efficiency --and to reduce noise on an airfoil blade-- is to manipulate and control the lateral airflow over the foil.  Of course, some of the best engineering solutions often come from mimicking what is already found in nature. Whales and certain fish have amazing hydrodynamic efficiency and stealth through the use of tubercles , or raised and slotted sections on the leading edges of their fins.  Our blades likewise use biomimicry-inspired riblets along the leading edge of the blades, which help the airfoil to create more power at lower speeds, and to operate more efficiently in turbulent air streams.   These Aero'coustic riblets, also prevent the air from traveling down the blade edge and "vortexing" off the blade tip contributing to tip noise. The noise you hear from most wind turbines is the sound of wasted energy. How quiet is it... really ? The MK4+ is extremely quiet, and we have never heard one quieter.  In fact, it measures only 35dB at 5 meters in 10 knots of wind.   At 15 knots, just a flutter, but no tip noise.  As the wind builds the flutter noise will increase.  Above 30 knots, everything exposed to the wind at that velocity will generate some noise, including the MK4+.  To get an idea of how quiet it really is, just watch the video below.  Note that the video was shot with a CMOS rolling-shutter camera, so the blades appear to be turning slowly, while in actual fact they are turning at several hundred RPM.  Video compliments of customer Hayden Cochran on his Island Packet "Island Spirit":

What is Yaw Error, and why is it so important?


This is quite different from most of the other, and more expensive, 400W generators.  The typical marine wind generator charge controller uses 50 year-old technology, which is simply a load-diverter switch, which, upon reaching a set-point, diverts 100% of the energy to a set of resistive elements (essentially heater coils).   So, when the battery reaches its dumpload set-point it isn't actually fully-charged, and this type of Partial State of Charge (PSOC) cycling damages the battery by reducing its capacity, and sulfating the battery plates.  They can't fully-charge the battery because they have no way to dump only the excess power produced, while continuing to top up the battery.  They can only dump all of it. The best scenario would be to have a way to progressively dump power so that the batteries could be fed with only the power that they need at this final stage of the charging process.   


 The controller is very compact (5-5/8" H x 5-7/8" W x 3-1/4" D), fanless, and is designed to be bulkhead mounted.  

It has the following additional features:

(1) Full monitoring capability (Volts, Watts, Amps), no additional battery monitors, shunts, panels, or displays needed (2) Backlit LCD display with clear graphical readout (3) Manual Brake deployment via keypad, so no additional stop switch is required (4) Battery charge level indicator (5) External load control (for managing lighting, etc)

Unlike some other popular marine wind generators which have internal controllers, there are no on-board electronics in the hot and salty elements, and there is no need for additional rectifiers, heat sinks, stop-switches, large resistive loads, or ammeters.  It all happens automatically and safely within the charge controller. It even protects from over-charging and under-charging. It is truly a hands-off charging solution.

Maintenance and Warranty: The MK4+ is designed to provide years of trouble-free service out in the elements, and has a 3-year warranty against defects in materials or workmanship.  We specified a simple and rugged mechanical set that uses very few parts, is easy to maintain, and will stand up to the rigors of the marine environment.  Unlike most single bearing automotive alternator-based designs, our dual low-friction rotor is supported by two low-friction bearings to provide long-life and easy start-up.  The unit is easy to disassemble, understand, and maintain.  The body is made of a lightweight magnesium and aluminum alloy, which is pre-treated with a zinc-aluminum nano-coat, and then a double marine-grade  epoxy powdercoat to resist oxidation and corrosion.   The MK4+ is bluewater tested by full-time cruisers, and like all of the Marinebeam products it is backed by the best technical support and warranty in the business.  Be sure to look at the various customer installation picture above to see some of our installations around the globe.

Interesting Links

Click here for our Frequently Asked Questions (FAQs) document.

Link to download PDF copy of installation manual  (V2.2)

Link to download PDF copy of controller manual  (V2.1)

Should you have further questions, feel free to contact us by phone or email.  Jeff, our resident MK4+ technician can be reached M-F 9-6PM at (864) 275-7837.  Or you can reach him by email at [email protected]

Product Videos

Custom field, product reviews, write a review.

Marine Kinetix MK4+ Wind Generator

18 Reviews Hide Reviews Show Reviews

Marinekinetix mk4 wind generator - highly recommended.

Posted by David Pollock on 28th Jan 2024

I’ve had my MarineKinetix MK4 Wind Generator for over 10 years and it has performed flawlessly! It is an exceptional product! Produces great power and is super quiet. While I also have solar, in the winter down in the Keys or further south, the daylight hours are reduced. But there is usually a 10+ knot wind. Nothing like waking up in the morning with the batteries fully charged. And quiet - I have had guests on my boat in a mooring field comment on the noise of wind generators on other boats. The MK4 is whisper-quiet, built solid with quality materials and they provide great service! Highly recommended!

Posted by Bob Golembicki on 12th Jun 2023

I replaced our very old two bladed Four Wind mizzen mounted generator this past winter with an MK4+ and are very happy with the output and how quiet and well balanced the new generator is as we’ve been sailing around the Chesapeake Bay this year. We’re running the engine to charge only on very calm days and maybe half as much as we had to with our old generator.

Posted by George Cline on 17th Feb 2023

Love my new wind gen. It’s quiet. Build quality is top notch. Installation is simple. Much happier with it than my previous wind gen from another brand.

Awesome product

Posted by Bob Osborn SV Pandora on 9th Dec 2022

After spending time with fellow Cruisers that had this unit on their boats, I had one installed this year. I had a wind generator years ago that we noisy and didn't put out much power. This one is as good as advertised. Quiet and powerful. I wrote a blog post about our power generating efforts aboard Pandora. Check it out.


10/3 Round Marine Tinned Cable Wire

sku: WR-10-3G

Round profile 10/3 marine tinned cable.

50 Amp Manual Reset Circuit Breaker

sku: CB-50A-42

50 amp manual reset circuit breaker.

Shown here are all of the wind generator pole mount components that are included in this kit - all hardware is 316 SS.

sku: MK4-MOUNT

Marine wind generator mounting pole hardware kit.

Replacement Blade for MarineKinetix MK450 or MK4+ Wind Generator

sku: BL-MK-4+

Replacement blade for marinekinetix mk450 or mk4+ wind generator.

Best Marine Wind Generator 2021

Getting your hands on a boat is only the first step towards becoming a true sailor. Once you’re comfortable with how your boat handles and operates, it’s time to start customizing it to your liking. Installing something like a marine wind generator can let you enjoy some of the amenities you’d only find onshore.

However, even budget marine generators can be relatively pricey compared to other, more minor fixtures. This means that a little bit of research can go a long way when it comes to saving you money and finding the right product will be sure to work. Today’s review guide will be based on finding the best marine wind generator .

We’ll look at six different turbine generators in this guide, each of which excels in its own way. After our reviews, we’ll also explore some of the key features to look for in a high-quality marine wind generator, and we’ll answer some frequently asked questions. For now, however, let’s get started with our reviews.

Best Marine Wind Generator

Our top pick: tesup master940 wind turbine kit, key points at a glance.

  • Durable injection-molded fiberglass blades
  • Lightweight aluminum body
  • Turbine blades engineered for quiet operation
  • Cooling fins help dissipate heat around the generator body
  • Generates up to 900W of power

The Details

The best marine wind turbine is the TESUP Master940. As the name suggests, this model can produce over 900W of power, making it the most powerful turbine on this list. Sweet!

However, there are more reasons to buy this wind turbine than just its high level of power output. Here’s the power output curve:

This model has some of the best build quality we’ve seen in a consumer wind turbine. All of the Master940’s components have been built to be as strong and light as possible. This is evident when you take a look at the materials used in its construction, with fiberglass blades and a strong yet light aluminum body.

The Master940 is equipped with a few clever features that help keep it running smoothly and prevent long-term damage due to overspeed. Unlike other wind turbines, this one comes equipped with a load dump system consisting of resistors in the charge controller that improves the reliability of the Master940’s wiring and circuits.

This wind turbine system is also designed to cut down on the amount of maintenance that you have to perform, as it comes equipped with a charcoal-free sliding contact that won’t have to be topped up.

The Master940 is designed to be used in all environments, and it won’t fail at high or low temperatures because of its inbuilt resilience.

The aluminum housing has better thermal transfer characteristics, and the inclusion of fins helps generate wind-flow that dissipates the heat into the surrounding air.

This turbine’s only weaknesses are its high price point and its relatively complex setup process, but they’re both a small price to pay for the Master940’s impressive performance and quality. This the best marine wind turbine available.

Our Runner Up: 400W Lantern Vertical Wind Generator by Happybuy

  • Double bearing design helps reduce vibration and noise
  • Microprocessor control gets the best performance out of the turbine at all wind speeds
  • The vertical turbine design offers omnidirectional performance in all wind conditions
  • Effective at harnessing the turbulent wind in the wake of a boat’s superstructure

While our runner up wind generator may not look as traditional as some of our other top picks, there’s a reason why the Happybuy Lantern-style looks like that. The layout of the fan blades on this model is designed to keep the power output constant no matter which direction the wind is coming from.

The improved omnidirectional performance of this wind generator makes it ideal for use on boats, especially those with a more cluttered superstructure. If you only have room for your wind generator near the back of your boat, you’ll still be able to generate power using that disrupted windflow.

Along with its unique design, the Happybuy 400W lantern wind generator is easier to assemble than most of the competition. If you don’t have much experience working with wind generators, then you can get this model up and running on the same day that you receive it.

Keep in mind that this model is mainly designed for faster wind speeds, as you won’t get much power output at speeds below 25 mph. While it will start spinning at lower speeds, you simply won’t get much useful power out of it. If you’re looking for a relatively well-built unit with powder-coated components and the ability to operate in a variety of wind directions without adjustment, this model is a great fit.

Best Budget: Happybuy 400W Wind Turbine Generator

  • Features a corrosion-resistant design with an aluminum housing and stainless steel fittings
  • The magnetic circuit allows the generator to run at low wind speeds
  • The automatic braking system prevents damage from high wind speeds
  • 400W of power output

Compared to the previous model from Happybuy, this 400W wind generator features a more traditional design, and it’s one of the more affordable options on this list. Despite featuring such a low price point, this Happybuy wind turbine is surprisingly reliable, and that’s one of the most crucial features to look for in a budget turbine.

Here’s the power output information:

To further improve its long-term reliability, this Happybuy wind turbine is made out of corrosion-resistant materials that have further been treated with a coating to reduce damage from UV light and salt spray. This model’s durability also makes it more effective in gusty conditions where other models may even be damaged by high wind speed.

Keep in mind that this wind generator doesn’t come with a mounting pole, so you’ll either need to buy the official one separately or you’ll need to create your own. While you’ll have to get creative when you come up with a mounting solution, assembling the turbine itself is surprisingly easy, and you can even do it if you’re a beginner.

In case of overspeed, the Happybuy wind turbine is equipped with an automatic braking system that will prevent the components from being damaged. Overall, this model may not be the best-performing on this list but it offers much more than its competitors within the same price range.

  • ♻[MAIN PARAMETER] ~ Rated Power: 400W ; Rated...
  • ♻[CONTROLLER INTRODUCTION] ~ Model: FWS03/06-12...
  • ♻[HIGH-QUALITY BLADE] ~ The blade material is...
  • ♻[WIDE APPLICATION] ~ This wind turbine is...

Best for Ease of Installation: SHZOND 400W Wind Turbine Generator

  • Max rpm of 800
  • Fiberglass reinforced blades
  • Comes with mounting hardware included
  • 400W of rated power output

The SHZOND wind turbine generator may look like a pretty standard one at first glance, but it’s designed to be a perfect fit for customers who are new to marine turbines. To that effect, the SHZOND 400W turbine is designed to be assembled in less than an hour, and it’s remarkably easy to use once you have it built.

This is also one of the lightest wind turbines on our list, as the housing is made out of vinyl while the blades are made out of fiberglass. The only metal parts you’ll find on the SHZOND wind turbine include the nose cone and the stainless steel mounting hardware and screws that keep all of the parts together.

Compared to other wind turbines on this list, this model from SHZOND will start spinning at lower wind speeds, only requiring about 10 mph speeds to start generating power. Keep in mind that this model is relatively sensitive to rapidly shifting wind directions because of the flexible mounting, so you may have to anchor it in a particular direction if you don’t want it to spin out of control.

This model’s control unit is also equipped with an auto-shutdown feature, ensuring that you don’t overload the battery.

Despite being easy to assemble, this SHZOND wind turbine comes with relatively vague instructions, so you’ll have to rely on the pictograms and what other customers have said about the assembly process. Even though this may seem like a pretty major annoyance, the SHZOND wind turbine’s strengths more than make up for it.

  • Well suited for the leisure sector, it is famous...
  • Wind generator rated power: 400W;Rated Voltage:...
  • Material of Wind Leaf: PBT;Start-up Wind Speed:...
  • Human-friendly design wind turbine, easy to...
  • Blades using reinforced glass fiber, helped with...

Best for Output Per Dollar: Automaxx Windmill 600W Wind Turbine Generator

  • Weather-resistant construction and corrosion-resistant materials
  • Features both automatic and manual braking systems
  • 600W of power output
  • Comes with a one-year warranty

This Automaxx wind turbine has a higher power output than many of its competitors at the same price point, so if you’re looking for something powerful that can provide good value for money, this is it. To make this model more suitable for use in marine environments, it is made out of corrosion-resistant materials.

This model has a maximum rated speed of 30 mph since it doesn’t feature a mechanical braking system, so it is more suitable for regions without extreme wind gusts. However, to make up for this, the Automaxx wind turbine has a relatively low cut-in speed, so you’ll have a broader band of wind speeds in which this model can operate.

The Automaxx turbine also swivels in a 360-degree arc so that it can be adjusted to match the wind direction. Unlike some of its competitors, it takes a lot for the wind to push the turbine out of alignment on its own, so you won’t have to worry about putting extra work into securing it so that it remains facing the wind.

The included charge controller features a wattage display and can easily be wired directly to your battery or battery bank. Here’s a basic wind turbine wiring diagram:

One of the main weaknesses of this model is that it uses only a magnetic braking system, and we would prefer it to be supplemented by a mechanical brake that could let it work in higher wind speeds.

  • 【Effective Generation】Maximum power generation...
  • 【Wide Range of Applications】 Marine-grade,...
  • 【Environmentally Friendly】Take a stride...
  • 【MPPT Charge Controller】Max power point...
  • 【Easy Installation and Maintenance】We take...

Best Marine Wind Generator Buyer’s Guide

Marine wind generators are an excellent choice for sailboats that may not have a powerful enough generator to run all of the onboard electrical devices. However, they aren’t only made for sailboats, as some smaller motorboats may not have an efficient way of siphoning power from the engine for electrical implements.

Using a marine wind generator hooked up to a battery, you can run devices like your radio, onboard GPS, and you can even charge your phone. Marine wind generators are also a better choice than small generators or auxiliary power units since they’re smaller, quieter, and more ecologically friendly.

Important Features to Consider

Ease of use and ease of setup.

Wind turbines still require a certain level of knowledge on the part of the user, but as time goes by, they get easier to hook up and use. A wind turbine that’s designed to be as user-friendly as possible therefore overcomes one of the main hurdles that many buyers face when they consider purchasing them.

A marine turbine needs to be made out of suitable materials so that it doesn’t end up getting damaged by the elements while it’s mounted to your boat. Metals like aluminum and stainless steel won’t rust and therefore fail after a bit of exposure to water.

The material will also determine how heavy your wind turbine is. Too heavy of a turbine may adversely affect your boat’s performance and will certainly be more difficult to set up.

Frequently Asked Questions

Do i need to wire my marine wind generator myself.

Yes, in the vast majority of cases, you’ll need to hook up the generator to the battery that you’re using to store the energy, so you’ll need to have a basic idea of what you’re doing to get the system running.

Can I supplement my marine wind generator with solar panels?

Yes, you can wire your marine solar panels into your energy generation system on your boat, even coupled with your wind turbine. In fact, some wind turbines are even designed to work with solar panels straight out of the factory, without much modification on your end.

Other Products We Looked At:

Marsrock small wind turbine 400w.

Aside from that, there are plenty of intelligent design features like the copper brackets in the blades that will prevent you from accidentally damaging them by tightening them too much. The charge controller on this wind turbine is also relatively intelligent, cutting down the speed of the blades so that the power output is consistent.

One of our favorite things about this wind turbine is that it’s a lot more affordable than many of its competitors, but it’s still reliable and features the same 400W power output. While this wind turbine is a solid choice, it doesn’t exactly stand out in any particular area, so it couldn’t match our top five.

  • Copper brackets in the blades keep them from cracking when fastened to the hub
  • The blades are made of plastic reinforced with carbon fiber

The Master940 is the best marine wind generator available, and its only major downside is that it’s so expensive. If you’re not willing to spend so much on your marine wind turbines, the Happybuy Vertical Wind generator is available for a more reasonable price and can generate power regardless of the direction the wind is coming from.

If you’re trying to save even more money, and you’d rather opt for a more traditional type of marine wind turbine, Happybuy’s other 400W wind turbine is cheap, easy to set up, and much more reliable than its competitors.

We hope that these reviews have given you a good idea of what to expect from these marine wind generators.

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Power Sources for Life Off the Grid

  • By David Schmidt
  • January 25, 2022

One of the strangest things that I have to regularly explain to nonsailing friends is why ­engines are often run offshore to generate onboard DC ­electricity. While savvy friends understand that charging needs to happen if one is going to rely on their batteries, those less technologically inclined are sometimes stumped. And rightly so. If sailing is so green, they ask, why do sailors emit CO2 to keep their nav lights on? 

Contemporary sailors, though, have their choice of several alternatives to producing electricity without starting up their diesel engine, starting with solar panels and progressing to hydrogenerators and wind generators. While plenty has been written about solar panels, this ­technology depends on the sun, which is dormant during nighttime hours, and sometimes during the day too, especially on my home Pacific “Northwet” ­waters, as we like to call them. 

By comparison, hydrogenerators and wind generators are also highly effective, sometimes for entire 24-hour ­cycles, and can often satisfy all of a vessel’s DC-power needs. Alternatively, these generators can serve as part of a multipronged energy-producing system aboard yachts with significant DC-power needs to run heating and air conditioning, powered winches, refrigeration and the like. Here, then, is a look at how wind and water generators work, the benefits they provide, and some practical considerations for owners interested in greening up their onboard-power production.

Working with Water

As their moniker implies, ­hydrogenerators are electromechanical machines that ­harness the energy of moving water. Hydrogenerators typically capture this energy as ­alternating current, convert it to direct current, and then send it to a battery for use later. While ­hydroelectric dams are an ­everyday form of ­hydrogeneration ashore, ­marine-facing systems ­typically come in different sizes, and with varying charging capabilities, but most employ an underwater turbine consisting of a propeller or impeller that’s part of an assembly that hangs from a yacht’s transom or is fitted to its undercarriage, directly abaft the keel. 

“In essence, a hydrogenerator consists of an impeller ­designed to extract kinetic ­energy from the water, and an alternator to convert the rotary motion produced to electricity,” Peter Anderson says. He is Eclectic Energy’s managing director. Eclectic’s line of hydrogenerators employs a dive plane beneath the impeller, which allows the system to “fly” through the water at a controlled depth, similar to how a hydrofoil allows a boat to rise above the water at a ­desired height. This approach differs from other designs that resemble an outboard motor. 

“The amount of ­kinetic energy available in a fluid stream—air or water—varies as the cube of its velocity,” Anderson says. “For a water generator, this means even a modest increase in boatspeed produces a substantial increase in power output. Equally, at lower speeds, the amount of energy available falls rapidly, as do outputs.”

Because of the direct ­correlation between a vessel’s speed over water and a hydrogenerator’s ability to produce power, the size of its propeller or impeller matters greatly. Spec the system with too small a prop, and it won’t ­generate much juice; spec too large a spinner, and it will create ­excessive drag and could possibly break if a vessel’s speed surpasses certain thresholds. Because of this, most hydrogenerators come—or can be ordered—with different size impellers. 

With a properly sized system, hydrogenerator-induced drag is minimal, Anderson says. It could cost a 30-footer that’s making 6 knots roughly a 10th (or 1/5 of a knot) of boatspeed; this likely drops to an invisible metric for a 50-footer in similar airs.

Sabrina Huet, communication and sales manager at Watt&Sea , another hydrogenerator manufacturer, echoes this: “Our cruising hydrogenerators produce energy from boatspeeds of 2 or 3 knots up to 20 to 25 knots,” in the case of racing yachts. “It all depends on the propeller size. We offer four propellers with different diameters to accommodate different sailing speeds. The aim is to minimize the drag effect while optimizing the output. To put it in a nutshell: We suggest a bigger diameter for slower boats, and a smaller ­diameter for faster boats.”

As mentioned, as a boat moves through the water, ­hydrogenerators initially ­capture the energy from the spinning propeller as AC power, which is converted to DC. “Most modern generators use alternators,” Anderson says. “AC power is rectified to DC within the housing.” ­Watt&Sea’s systems work in a similar manner. 

As with other technologies described in this article, batteries are sold separately. A sailor can use any kind of battery, they would just have to check if a particular battery or battery bank requires any specific voltages, Huet says. If a battery or bank has needs that are different from Watt&Sea’s factory settings, those parameters can be changed easily, thanks to the system’s integrated mobile application. 

That said, it’s ­important to confirm that a yacht’s ­batteries are in good shape before connecting them to a hydrogenerator. “A ­minimum of 300 amp-hours at 12 volts is ­recommended,” Anderson ­advises. Most cruising yachts have at least 400 amp-hours of battery capacity, with 200 amp-hours that are usable. Batteries should not be routinely discharged below 50 percent, he notes, so it’s sensible to increase battery capacity if space and budget allow.

Both Eclectic Energy and Watt&Sea employ smart ­technology to ensure that their systems don’t create overcharging issues. “A charge ­regulator normally forms part of the ­installation,” ­Anderson says. “This terminates the charge once the batteries are full, which prevents possible damage through ­overcharging.” Once the battery or bank is topped up, the regulator then connects the generator to a power resistor in order to dump additional electrical energy.

Hydrogenerators can make great use of trade-wind conditions, however too much of anything becomes a negative. “Our hydrogenerators can withstand difficult conditions, but it’s essential to lift up a generator when approaching rough conditions, and to secure it with a rope or even ­belowdecks,” Huet says. “It’s also important to think about the lifting and lowering system, such as a hoist, to make the handling easier in both rough and calm seas.” 

“Prudence would suggest water generators be raised out of the water and possibly stowed,” Anderson says of preparing for heavy weather. “However, many owners report operating their Eclectic generators in storm conditions without problems.”

As with all systems, ­installation is an important consideration. 

Watt&Sea recommends hiring professional ­installers. Eclectic Energy, however, is more geared toward do-it-yourselfers. “Our generators are supplied with standard mounting hardware and installation instructions,” Anderson says. “Many owners do install these systems themselves.”

One concern for sailors—especially those who voyage in log- and debris-strewn ­waters such as the Pacific Northwest—is an encounter with an ­unidentified floating object, which could damage the impeller or propeller, or even the entire assembly. Much like during storm conditions, sailors are advised to retract their hydrogenerators based on ­localized conditions.   

The amount of power that a hydrogenerator can produce is an important and ­subjective question. Much hinges on how fast a boat is sailing (or ­motoring), the size of a hydrogenerator system, and the size of its impeller/­propeller. Because of this, Anderson and Huet advise customers to check manufacturer websites for more information about specific models and impeller/­propeller sizes. 

While the drawbacks to ­using a hydrogenerator—aside from turnkey costs, minimal drag, and attention to debris in the water—are minimal for sailors frequently on the move, the upsides are substantial, ­especially if you don’t care for the sound of a diesel engine or generator. “Water generation is the only renewable technology capable of matching the power consumption of a typical cruising yacht on passage,” Anderson says. “This removes the need for daily engine or genset runs to charge up the batteries.”

Counting on Breeze

The concept behind wind generators is equally ­simple, and most manufacturers ­rely on a turbine with blades that are exposed to airflow, which makes them spin. If this sounds to you a lot like an ­inverted (or dry) water generator, you’re spot-on—with a few ­exceptions. 

First, hydrogenerators are under the water’s surface, while wind generators are fitted on deck atop poles or on struts mounted on a mast. ­Second, wind generators are typically larger, employing longer blades, with greater cord widths than would be found on hydrogenerators. Third, since hydrogenerators depend on boatspeed to produce power, their performance is typically more consistent and not affected by small puffs and lulls of the wind. Lastly, the two types of generators typically produce different types of electricity.

 “All of our wind turbines produce DC Power,” says Dan Kruger, president of RDK Products . His company manufacturers wind turbines under the brand name Nature Power Products. “It starts out as high voltage, but through our controller, the system will step down the voltage to correctly charge your 12-volt batteries.”

Nature Power ­Products come with a generator, three carbon-fiber blades, and a charge controller. Customers need to supply their own mounting pole, and ­Kruger notes that most of his ­customers purchase theirs from fence stores. 

As with hydrogenerators, wind generators are ­available in different ­sizes, with ­different ­energy-­producing ­capabilities. Nature ­Power offers 400-, 500- and 2,000-watt systems. ­Kruger says: “These are designed to run most of your smaller ­electronics, televisions, GPS, fans and lights. They aren’t ­designed to power air conditioners unless you build a fairly substantial hybrid system that also includes a battery bank and solar energy.”

As with hydrogenerators, wind generators are compatible with a range of battery technology, including lithium and absorbed glass mat batteries. “A typical marine-grade deep-cycle 12-volt battery is fine for a basic wind-turbine system,” Kruger says. “Many sailors will have a bank of batteries. We also ­manufacture 24- and 48-volt ­wind-turbine systems for larger, more ­complex installations.” 

Determining the right-size wind generator for your sailboat starts with calculating your vessel’s power needs. “There’s no minimum-size ­vessel for a wind turbine to make sense,” Kruger says. “But if you’re getting into larger vessels, such as a Swan 88, you would definitely want to be looking at the Nature Power 2,000-watt system.”

Nature Power Products protect their connected battery or battery banks from overcharging by entering a “float” mode when the system’s controller senses that the storage ­reservoirs are topped off. 

As with windmills, wind generators are most ­effective in a good, steady breeze. The working range for Nature Power’s 400-watt system is 6 to 24 knots of wind, with 24 knots being the optimal windspeed. Kruger says that the goal is to expose the wind generator to steady, laminar flow, not ricocheting gusts. “The higher you mount the wind turbine, the cleaner the wind will be and the more efficiently your system will operate.” 

Too much breeze, he says, can be problematic. “The ­only time you would want to take down the unit is if you feel the storm might jeopardize the actual physical installation,” Kruger says, ­explaining that Nature Power Products are designed to withstand ­serious wind without sustaining ­damage to the turbine, its circuitry, or the connected battery or battery banks. The systems accomplish this by employing its float mode when windspeeds crest certain thresholds. “The system’s ­actual ‘survival’ windspeed is 96 knots,” Kruger says. 

While installing a wind ­generator isn’t a plug-and-play operation, the systems are relatively lightweight and generally require somewhat basic wiring schemes, making them DIY-friendly. Maintenance is also a typically easygoing affair. Kruger suggests ­replacing a system’s turbine blades ­every few years and installing the system’s controller in a dry place near the battery or bank. 

As with all technologies, wind generators have their downsides. Breeze can be an inconsistent actor, and ­air-density changes ­depend on atmospheric pressure and temperature, both of which can complicate a system’s ­daily output. Also, some generators are loud, making the owner unpopular, say, in a crowded anchorage. And while they are capable of ­impressive ­power generation while ­anchored in the trades, downwind runs—typical of trade-wind ­passages—reduce the apparent wind, ­rendering ­generators less productive. Lastly, ­depending on their ­installation, a wind ­generator can possibly interfere with running rigging and sails, or depending on their size, they might cast shadows on a ­vessel’s solar panels. 

Otherwise, wind generators can be a great source of green energy, and are ­commonly bundled with other green ­solutions to create ample ­onboard power.

David Schmidt is CW ’s ­electronics editor and frequently reports on other types of gear.

  • More: green sailing , How To , maintenance , print nov 2021

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wind generator for sailboat

Wind generators – buyers’ guide

After a flurry of recent technological developments, Duncan Kent compares the latest high-output wind turbines

wind generators

Three-bladed rotors have become increasingly popular. Although early models were quite noisy, smart CAD-designed blades have considerably reduced the thrumming and whistling sounds by removing the turbulence around the blade tips. Furthermore, the use of more efficient, low-cogging (less initial friction) permanent-magnet alternators has also allowed blade speeds to be reduced, further limiting ambient noise levels.

AIRBREEZE £1,169.50

wind generators

The Airbreeze is easy to assemble as everything is contained within the casing, requiring only a quick blade assembly before being ready to mount. It’s not the most powerful and can be a little noisy in high winds, but it’s very good value as you don’t need to spend money and time installing an external charge controller.

Verdict: Easy to assemble, mount and operate, but noisier and less powerful than some


wind generators

Although it’s fairly straightforward to assemble, it’s not made any easier by the sheer weight of the generator.

During previous trials it proved to be one of the quietest on test, started quickly and outputting an increasingly progressive rate of charge. It is also less prone to yaw from side to side than some, keeping head into wind to ensure a more stable output.

Provided its mounting can handle the loads, its sturdy build allows it to continue operating in very high winds, producing a staggering 50A+.

Verdict: Solidly engineered, very powerful and quiet. The flip side is it’s heavy and needs dump resistors

LEADING EDGE LE-300 £649.95

wind generators

The device is easy to assemble and light enough to carry in one hand. An integral rectifier produces a two-wire DC output and its efficiency has recently been improved with the fitting of stainless steel counterweights to offset the effects of pitching and yawing common on a yacht.

A run/stop switch is supplied that brakes the turbine by shorting its output. It can also be supplied with a dump load style regulator to prevent overcharging (£189.95).

The LE-300 is probably the quietest of all the three-blade models available, but it’s also one of the least powerful.

Verdict: Light and great value, but with a lower output than many of the others

LEADING EDGE LE-450 £899.95

wind generators

The alternator uses rare earth fixed magnets and has zero ‘cogging’, allowing the turbine to start quickly and to spin in the lightest of breezes. Furthermore, having five blades of advanced design allows the swing radius to be kept to a minimum and reduces wind noise noticeably, while its light weight allows it to be safely mounted on a mizzen mast or possibly even a stout spreader.

Verdict: Well designed, lightweight and good value, but needs manual tethering in over 35kt of wind

RUTLAND 914i £649.96

wind generators

An optional multi-stage charge regulator is available, which has an on/off switch and LED charge status indictors. It can also accept and integrate solar panels up to 160W.

The surprisingly cheap HRSi regulator (£78.50) works electronically to gradually slow the turbine in high winds or near full charge situations, rather than using resistive dump loads.

The 914 is quiet in operation and quick to start generating in light winds. Well made, its heavy metal hub acts as a flywheel, giving it enough momentum to smooth out the pauses during brief lulls in the wind.

Verdict: Quiet and inexpensive, with a smart controller. Relatively low output

RUTLAND 1200 £1,195.00

wind generators

High rotation speeds and efficient alternator design results in plenty of raw power. Marlec’s latest smart HRDi charge controller (£155.95) continuously alters the rotation speed of the generator, slowing it down as the batteries become more charged. It also incorporates the latest Maximum Power Point Tracking (MPPT) technology to optimise all the available energy produced and Pulse Width Modulation (PWM), which enables multi-stage charging to keep the batteries topped up. Other features include dual-battery bank control, an input for up to 250W of solar panels and an optional remote digital display.

Verdict: Powerful, well-made and with smart regulation. Has a wide rotation diameter

SILENTWIND 400 £1,291.33

wind generators

The Silentwind is heavier than it first looks, mainly due to its high output, permanent magnet 420W alternator. Recent (2016) upgrades include a boost feature in the generator and a lower start speed thanks to its ‘low cogging’ design.

Available in 12V, 24V and 48V versions, its three-wire AC output connects directly to a recently upgraded smart charge controller with solar inputs, an LCD display, integral brake switch and Bluetooth connectivity so the user can monitor their battery status and charge from a mobile device or laptop. Furthermore, the new controller (£410.42) now consumes only 20mA itself, rather than the 100mA of the old model.

Verdict:   High power output and a nifty Bluetooth smart controller, but all at a price

SUPERWIND 350 £1,528.75

wind generators

The SCR Marine charge controller option (£384) has two independent outputs, for start and service banks, although it does rely on the rather crude method of dumping any excess loads to two large resistors, which can get very hot if the device is left running in a gale.

Despite having a slightly lower output alternator than some, in field tests this device gave a very respectable performance in wind up to 15 knots, and provided serious amps in higher winds up to 28 knots.

Verdict: Light, well made, quiet and powerful, but expensive and reliant on dump load regulation


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Marine Kinetix

Marine Kinetix MK4+Marine Wind Generator

  • Description

Marine Kinetix MK4+ Wind Generator - the highest rated marine wind generator

  • Super Quiet 
  • Low Wind Startup, High Wind Performance
  • Super Reliable
  • Maximum Power
  • 12V, 24V and 48V Options
  • For AGM, VRLA, Gel and Lithium Batteries (see Options tab above for further info)

MarineKinetix wind turbines have become the serious cruisers choice.  Cruising Solutions was an early-adopter of the MarineKinetix Wind Generator, and after having one on our own cruising sailboat for more than 7 years of full-time cruising, and after interfacing with scores of owners, we can honestly say that we believe that this is one of the best marine wind generators available.  We think you will agree.

Check out a recent blog review from a happy MK4+ customer here .

Using advanced engineering, high-efficiency output and super-quiet operation, the MK4+ takes us to another level with a smaller, lighter design;     taller tail for better wind tracking and responding to wind shifts. The large 1.33 meter swept-area intercepts more wind than any other marine wind generator, meaning more power.  The new asymmetric pole-shifted rotor features 12 rare-earth neodymium magnets for smoother rotation and higher output. The 36-slot stator features upgraded premium heavy gauge copper windings for efficiency and durability.

Durability and appearance in the marine environment is also improved with a high-pressure die-cast magnalium chassis being Dacromat pre-treated then thermoset-coated with   a durable marine double powder coating.  

Noise and vibration levels have also been refined by doubling the yaw bearings providing a wider base for yaw response, and reducing vibration.  The  Aero'coustic carbon-fiber reinforced blades have been upgraded as well, making them 18% more rigid.  The included urethane "isolator pad" is now molded to ease installation at the pole and the precision hub has improved tolerances for blade tightening to eliminate any irregularities which might produce imbalance or vibration.  

Below deck, the all-new 2-stage Pulse Width Modulation (PWM) charge controller increases total output efficiency, charging your batteries faster and fuller.   Thanks to modern power electronics, the MK4+ doesn't need diversion loads or heating element to provide speed control.  The microprocessor-controlled charge controller uses stepless electronic load control, automatic braking, and overvoltage and overcurrent protection.  No need for a separate shunt, ammeter, or stop switch panel either.  A matrix LCD screen provides voltage, amperage and wattage info, and the controller features an integrated manual stop switch as well.  A remote (wired) stop switch-enabled controller is also available as an option for situations where the controller will not be mounted in an easily-accessible location. 

In our 20 years of cruising, we have seen and/or tried virtually every wind generator out there and can honestly say that this is the one to buy. It is super quiet...none quieter. It has very high output in the full range of conditions yet requires virtually no maintenance or baby-sitting. It is durable and delivers maximum power from wind to battery with no hassle. Installation is very straightforward with no surprises, and customer support is exceptional. You'll love it so much that Cruising Solutions guarantees your satisfaction!

The box includes:

  • Wind Generator
  • Assembly Hardware (nuts/bolts/washers, plus spares)
  • Isolation pad

You will need:

  • Mounting pole and support stays. Mounting collar is for 1.9" OD tubing or pipe (1.5" Schedule 40 pipe is 1.9" in OD).  48-50 mm tubing is also fine.  Stainless or aluminum are appropriate. 
  • Appropriate length 3-conductor wire (10/3 cable" for up to 30') from the top of your mounting pole to the charge controller mounting location.
  • 8AWG primary wire (red + and black -) from the controller to your battery connection (up to 30').
  • 50A fuse or breaker on positive connection to the battery (this is a safety item per ABYC).

Questions or comments, technical or otherwise, please give Jeff a call at 864-275-7837. We will answer all of your questions and help you select the proper setup.

Battery System Voltage -The options include 12V, 24V and 48V wind generators, depending on your DC system's nominal voltage.  Once you decide on the system voltage, you will need to decide about your battery type. 

Battery Chemistry - All 12V lead-acid variants, including VRLA, Gel and AGM use a controller that stops charging when the battery bus voltage reaches 14.4V.  While this end-of-charge voltage is also specified for most 'drop-in" Lithium Iron Phosphate batteries (e.g. Battleborn, Blue Heron, etc), we also offer a LiFePo4 charger that completes charging at 14.2V for batteries that specify this as the end-of-charge voltage (e.g. Victron). We recommend getting specific advise from your battery manufacturer relative to recommended end-of-charge voltage, but note that 12V LiFePO4 batteries are about 98% charged at a final voltage of 14.2V, and there is little capacity to be gained by charging further. 

NOTE: Double or triple the setpoint voltages described above for 24V and 48V batteries respectively.

Remote Stop Switch - While all of our charge-controllers feature a panel integrated mounted stop switch (with soft-braking), some applications benefit from the addition of a secondary switch mounted in a more convenient location.  For this option, you provide the actual SPST switch, but we supply a wired pigtail on the controller for you to connect to.  This allows you the option to run some light-gauge wiring to a stop switch mounted in another location that you prefer.  Choosing the remote stop switch option does not eliminate the integrated controller stop switch.  It will still function.

wind generator for sailboat

The Best Wind Generators for Sailboats: Power Up Your Sailing Adventure with These Reliable Options

wind generator for sailboat

Sailing is an incredible experience, and it is even more enjoyable when you are equipped with the right tools. One essential tool that every sailor should have is a wind generator. A wind generator is a device that captures the wind’s energy and converts it into electricity, which can be used to power your sailboat’s appliances and electronics.

In this article, we will be discussing the best wind generators for sailboats.

Table of Contents

MarineKinetix MK4+ Wind Generator

wind generator for sailboat

Silentwind Wind Generator

wind generator for sailboat

Eclectic Energy D400 Wind Generator

Rutland 1200 wind generator.

wind generator for sailboat

KISS High-Output Wind Generator

Superwind 350 wind generator, air breeze marine wind generator, fourwinds ii wind generator, primus wind power air x marine wind generator.

wind generator for sailboat

Ampair 100 Marine Wind Generator

wind generator for sailboat

When choosing a wind generator for your sailboat, it is important to consider factors such as the generator’s energy yield, noise level, and durability. By doing so, you can ensure that you choose a wind generator that will meet your needs and provide you with a hassle-free sailing experience.

In conclusion, choosing the right wind generator for your sailboat is essential if you want to have a hassle-free and enjoyable sailing experience. The wind generators mentioned in this article are some of the best on the market and are designed to meet the needs of sailors of all kinds. Whether you are looking for a reliable and efficient wind generator or a powerful one, there is a wind generator out there that will meet your needs. So go ahead and choose the best wind generator for your sailboat, and enjoy your sailing experience to the fullest.

Mark Alexander Thompson

Mark Alexander Thompson is a seasoned sailor with over five years of experience in the boating and yachting industry. He is passionate about sailing and shares his knowledge and expertise through his articles on the sailing blog In his free time, Mark enjoys exploring new waters and testing the limits of his sailing skills. With his in-depth understanding of the sport and commitment to improving the sailing experience for others, Mark is a valuable contributor to the sailing community.

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My Cruiser Life Magazine

Choosing a Wind Generator for a Sailboat – Complete GUIDE

Nothing denotes a salty off-the-grid ready yacht more than the sight of a wind generator mounted on the stern. Once, these were the main component of a sailor’s renewable energy arsenal. 

But today, as is the case with wind generators for RVs , the technology has fallen behind the fantastic strides that solar panels have made. Today’s solar panels are less expensive and more efficient than ever before, while wind generator technology hasn’t progressed much in the last 50 years.

Still, there are limited times when wind generators make the most sense on sailboats. Here’s a look at who could benefit from one and five of the best options on the market.

Table of Contents

Is a wind generator right for me, how much power do i need, alternatives to wind power, things to look for in a marine wind generator, 5 great marine wind generators.

Before you dive into the whirlwind of information out there about marine wind generators, take a step back for a reality check. Wind generators were the standard-bearer for years onboard sailboats, but in the 21st century, their usefulness has all but been replaced by solar panels. Solar is efficient, silent, and completely maintenance-free. 

As a result, the usefulness of a wind generator is now much more limited. There are many pros for wind generators—but most of them can be negated by one simple fact–the amount of usable power they produce is significantly less and more expensive than solar. 

Furthermore, the two times when a wind generator does make sense are not conditions typically encountered by most cruisers. Wind generators are only effective for significant power when the apparent wind speed on deck is more than 15 knots. That’s apparent wind speed on deck—meaning most downwind sailing in winds less than 22 knots true or so would be out. 

And then there are anchorages, where sailors hope that a wind generator will help them live off-the-grid to avoid a generator or engine recharge. How many anchorages have you recently sat in that had a constant 15 to 20 knots of undisturbed wind blowing through them? Most of the time, we’re trying to get out of conditions like that, not anchor in them. 

There are some parts of the world where these conditions are the norm. Caribbean trade winds and high latitude winds make wind generators more attractive. Those sailors stuck in the “horse latitudes” in between will find their wind generators silent and motionless most of the year. 

The other time that adding a wind generator makes sense is when there is simply no other renewable energy option available. A wind generator can mount in many ways on nearly any type of sailboat. It has a tiny footprint, unlike a large solar array. 

The bottom line is this—only add wind power when you have absolutely no space left for solar. If you’re maxed out on solar, a wind generator can give you a little boost. But another solar panel will consistently outperform a wind generator—unless you’re that rare sailor whose anchorages of choice feature steady and uninterrupted 20-25 knot winds.

Choosing a Wind Generator for a Sailboat_Where you make it

Pros and Cons of Wind Power for Boats

  • 24-hour per day operation (as long as it’s windy)
  • Small installation footprint, compatible with most sailboats
  • Good options when solar panels cannot be used due to mounting problems or shading (especially on ketches)
  • Very low power generation in most conditions
  • Ugly and bulky, mast and mount included
  • Not effective when sailing downwind (like most tradewind sailing)
  • Not effective in protected anchorages
  • Maintenance intensive, moving parts and bearings wear out
  • Limited controller options, many not compatible with LiFePO4 battery systems
  • Expensive compared to solar

When calculating your requirements for off-the-grid living, the math does not lie. The problem is not lying when you do the math. You can find many calculators and spreadsheets online to help you make the basic calculations.

First, you need to know precisely how much power every electrical consumer on the boat will use and how long it will run each day. These items are often variable—refrigerators will have to run longer in hot climates and the summer, and lights will burn longer during the dark winter months. For everything that uses electricity, calculate the watts used per day (24-hour period).

Next, you’ll want to take into account how much power is being generated. It’s impossible to get accurate numbers for your setup until you’re out there doing it. In general, solar can be counted on for its maximum output for three or four hours a day. How many sunny days a year depends on your location. Again, there are many calculators online.

The wind is good for 24 hours a day, of course, but the wind is seldom that constant. So when calculating the math for a wind generator , it’s very easy to feel good about the choice. But practice has routinely shown that even a small solar array will outperform it in nearly every location.

As already mentioned, the number one choice for most sailboats for renewable power is solar. Solar panels are inexpensive and last for decades with zero maintenance. The downside is that they require a lot of shade-free space to work best.

For boats looking to make power during offshore passages, hydrogenerators are another solution. As long as the boat is cruising at six knots or more, the water passing by has enough potential energy to run electronics and charge batteries. The Watt & Sea Hydro generator is one of the best options out there, but there are also towable generators that do not require permanent installation. Some boats even have the option to use the free-spinning propulsion propeller to create electricity. Of course, these options only help charge the batteries when the boat is moving under sail, and only then at fast speeds. 

Choosing a Wind Generator for a Sailboat_Where you make it

Power Output

The first thing to realize is that you must take manufacturer’s ratings for their units with a grain of salt. The numbers are engineering calculations for ideal conditions. That is to say, conditions that a marine wind generator will likely never get to experience. 

Of all of the performance numbers worth considering, perhaps the most interesting numbers are those at the low end on the scale – when does the unit start producing power, and how much. Most of us boat in places with 15 knots of wind or less most of the time, so this is the range your wind generator will sit in for most of its serviceable life.

Noise Level

First and foremost – do not be fooled by online reviews. Every wind generator on the market produces noise. Since the noise is generated from multiple sources, it can be hard to compare apples to apples when shopping for a generator. 

Blade design has a significant effect on noise – some blades are simply noisier than others. Not only does the blade’s aerodynamics make noise, but they can also cause vibrations. All wind generators will require occasional rebalancing and adjustment to minimize vibrations from the blades. 

The moving parts inside the generator can also cause noise. Most are mounted with standard ball bearings that can and do go bad. Many manufacturers advertise these as maintenance-free, but that’s simply unrealistic in the marine environment.

Finally, the mount on the boat is a significant source of noise because it transmits the blade’s vibrations, no matter how minor, into the boat’s structure. Proper mounts have rubber dampening pads built-in, but even still, some noise will get through. This can sound like a buzz, hum, or even a thumping noise.

Quality of construction plays a huge part in how much noise a wind generator makes. As a result, you get what you pay for with wind generators. Unfortunately, the inexpensive hardware store models built for residential use are typically the noisiest. 

You can compare the noise output of various wind generators by taking a stroll around the marina docks or a dinghy ride around the anchorage. Bad or poorly-maintained wind generators can be heard from many boat lengths distance. On the other hand, a high-quality unit will be difficult to hear when you’re standing under it, much less on another vessel.

Correct Voltage

Wind generators should be matched to your primary battery bank—the one that you’ll be charging. Most boats will be 12 volts, and a few will be 24. 48-volt systems are becoming more popular on electric yachts and those using the battery bank for big consumers like air conditioning. These are the exceptions to the rule, however. 

Charge Controller Functions

Unlike solar, wind generators are typically matched to the charge controller that the manufacturer packages with the unit. There are simply a lot more factors that go into regulating a wind generator, including the generation technology it uses and how it brakes or diverts its load. 

Charge controllers are either PWM (pulse width modulation) or MPPT (maximum power point tracking). PWM is a less expensive technology, while MPPT controllers are more expensive. In the world of wind generators, which one a controller features is a bit of a toss-up. Some manufacturers swear by MPPT, while others say there is no benefit to the added cost. 

Most solar chargers accept a solar input, usually only about 100 watts, though. It’s probably more efficient to run your solar array on its own MPPT charge controller. But if you’re only planning on installing a small array and don’t want the hassle of programming separate charge controllers, having the option with your wind controller is a very nice feature. 

Finally, the programmability of the charge controller is a significant factor. Very few of the older PWM charge controllers allow you to input charging profiles. Again, this is less of a problem with wind power than with solar. But if you’re planning to use less forgiving battery chemistries like lithium, you’ll want as much control as you can get from your controller. 

Brake and Automatic Cut-Off

Being able to cut a wind generator off in an over-power or over-speed scenario is extremely important. All wind generators come with some form of braking system. The brake needs to be used when the system reaches a full charge, or the wind speed goes beyond the wind generator’s limits. 

Remember that the generator’s not simply limited by what the blades and bearings can handle. There is also the strength of its mounts to consider. For example, a 60-knot gust on a free-spinning generator will impose an unbelievable force on its mounts.

Then there are wiring considerations. The wind generator is only designed to output so much power, and during your installation, you must use wire sized for the maximum output. What happens if more than that amount of current goes through wires due to a brake failure? Heat and possible battery damage will result, but hopefully, the circuit breaker or fuse will cut it off before then. 

Some have aerodynamic brakes that turn the generator as wind speed increases. This theoretically means that it can never go over its designed limits.

Others feature a brake that is automatically or manually activated. It’s designed to come on when the current reaches a maximum, such as during powerful wind gusts. It also breaks the unit to a stop when the batteries are fully charged. 

An alternative plan is to have a diversionary load. Some wind generators will come with dump loads, which are nothing more than ceramic heating elements. When the wind generator produces too much power, power is redirected from the batteries into these heating elements. They’re also used when the generator produces too much power for the system during storms. 

Mounting and Unit Weight

The mounting mast used to secure the wind generator is sometimes more complicated than the wind generator itself. It must be strong and stayed from all angles. Stainless tubes with two supports are commonly used to mount them to the back of yachts. 

The construction and position of the wind generator are essential to reduce vibrations and noise within the boat. Don’t mount a wind generator over someone’s bunk! All proper mounts have sound-deadening materials like rubber grommets built in to make them as quiet as possible.

The blades of a wind generator must be positioned so that they can’t catch any lines, canvas, or flags from other parts of the boat. This makes stern-rail mounting almost impossible on ketches and yawls. On these boats, mizzen mast mounts are often the best alternative. 

Keep in mind as well that the spinning blades of a wind turbine are like spinning knives. Sailors have lost fingers trying to secure wind generators during storms. Therefore, they should be mounted high enough that it is impossible to accidentally come in contact with the blades during normal operations. 

As mentioned before, another critical component of the mounting is calculating the correct wire size. This is calculated from the unit’s maximum output, the round-trip length of the wire run, and the unit’s charge voltage.

Finally, the positioning of the wind generator should supply it with uninterrupted airflow. If the wind is blocked, even slightly, but a mast, sail pack, or hardtop, the wind generator’s efficiency will be negatively affected. These items could also induce turbulence into the air being supplied to the turbine, which could result in vibrations and noisy operation.

Choosing a Wind Generator for a Sailboat_Where you make it

When shopping around for wind generators , notice that power output is not one of our main criteria. This might seem odd, but all of the wind generators on this list produce more or less the same amount of power in a given wind. Some start producing at lower speeds, and some keep producing at high speeds, but in general, these occurrences are so minor and so rare that they don’t calculate into the shopping process.

Eclectic Energy D400

The D400 has a legendary reputation among cruising sailors as the wind generator of choice. It is nearly silent to the point of being very difficult to hear. It is built by Eclectic Energy in the UK, and you can spot its distinctive shape and five-blade design on yachts worldwide. 

For all the pluses, there are some detractors from the D400. For one, it is pretty much the most expensive option. It is also the heaviest—it requires a much beefier mount than other options do. 

SilentWind Pro

The SilentWind has a few advantages over many other wind generators. For one thing, the included MPPT charge controller features Bluetooth programming via a smartphone or tablet. In addition, you can set many parameters for the charge profile—meaning that it is one of the few wind generators that are at least somewhat compatible with the next generation of lithium marine battery systems. 

Compared to the D400, the SilentWind has a more lightweight and compact body. It’s a three-blade design that features blue composite fiber blades. The SilentWind is made in Portugal. 

Rutland 1200

Rutland is the wind power branch of the Marlec renewable power company from the UK. Rutland makes a wind range of wind generators for yachts of all sizes. The 1200 is a three-blade generator that features an MPPT controller with a solar input. At 10 knots of wind, it produces about 40 watts of power. 

Primus Air Silent X

Primus makes a variety of wind generators from their facility in Colorado. The “top-of-the-line,” so to speak, is the Air Silent X. It’s an upgraded version of their Air X that comes supplied with quieter blades made of distinctive blue carbon fiber.

Superwind 350

The German-made Superwind has a unique overspeed and overcharge protection system—the units feature feathering blades. This is undeniably more complex than many other options on the market. These generators are designed to be installed in grueling conditions where a damaged generator cannot be repaired quickly. Their primary market is aimed at remote telecommunication equipment stations and offshore sailors.

wind generator for sailboat

Matt has been boating around Florida for over 25 years in everything from small powerboats to large cruising catamarans. He currently lives aboard a 38-foot Cabo Rico sailboat with his wife Lucy and adventure dog Chelsea. Together, they cruise between winters in The Bahamas and summers in the Chesapeake Bay.

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Solar Panels vs. Wind Generators

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As the worlds largest solar-powered boat heads toward Miami for its U.S. debut and the start of a 16-city world tour, I was reminded of one of the most frequent questions I hear from Practical Sailor readers: “Which is best, solar panels or a wind generator?” The answer, like many things regarding cruising equipment, depends on where you cruise and the type of boat you own.

The MS Turanor PlanetSolar , the worlds largest solar-powered yacht ever constructed, offers a persuasive case for solar power. The sun-powered, 102-foot catamaran, which recently broke its existing Guinness World Record for completing the fastest trans-Atlantic crossing with a solar boat (22 days), docks in Miami later this week. Stops in New York and Boston are also included in its 2013 itinerary . Following its U.S. visit, the vessel will set sail on a trans-Atlantic, scientific expedition to study climate change.

For most U.S. sailors contemplating investing in renewable energy sources for the first time, it makes sense to buy a solar panel before a wind generator. For about $700, you can buy a pair of 60-watt panels that can generate about 240 watt-hours or 20 amp hours (assuming four hours of peak sunlight). This won’t cover the amp-hour requirements of a modern cruising boat, however. (To roughly convert a solar panel’s watt rating to amp-hours per day, marine technical author Nigel Calder offers the formula: amp-hours per day at 12 volts = the panel’s rated wattage 3.) Although wind generators can deliver more than double this output during a 24-hour period, many U.S. anchorages and marinas don’t have the consistently breezy conditions they require to reach their potential. That conclusion was borne out during our long-term test of five models on a hilltop in Rhode Island, a relatively windy U.S. location, during the mid-1990s. Testers then came to the dismaying conclusion that over the long haul, an average 50-watt solar panel would outperform the units we tested.

Results were different in 2007, when we simultaneously tested five wind generators through a breezy Chesapeake Bay winter. The results of that wind generator test (accessible only to subscribers) and an article on choosing a wind generator based on that test offer a more optimistic view of wind energy. As the results of the 2007 test demonstrate, in windy areas such as the Caribbean, wind generators can do a much better job of keeping up with the demands of 12-volt refrigeration, usually the biggest energy hog on a cruising boat.

Ultimately, which system will be most efficient for you depends greatly on the region you intend to cruise. Although many long-term cruisers making a loop through the Caribbean do just fine with solar alone, those with high energy demands find that supplementing solar with wind energy offers the best opportunity for keeping batteries charged 24/7.

There are several websites that discuss the pros and cons of these alternative energy sources from a sailors perspective. EMarine, a company that sells both solar panels and wind generators, offers a cut-and-dried comparison of solar vs. wind . Although the article is based on some generic assumptions that may or may not apply to your cruising region, it offers a concise look at the pros and cons. Nigel Calders “ Boatowners Mechanical and Electrical Manual ” offers a more detailed discussion of these two systems. Last year’s blog update on solar panels also includes a number of links to Practical Sailor articles on solar trickle chargers, using multi-point power technology to boost solar panel output, tips on prolonging lead-acid battery life, and options for mounting high-output installation.

If you can look past the obvious sales pitch, West Marines West Advisor on solar panels also offers a good overview of solar systems for marine use . Although it has been a while since we have looked at solar panels, we are not big fans of flexible panels. If you are seriously in the market for a solar panel, look for rigid panels with 20-plus-year warranties. Since much of the appeal of solar panels is their durability, we would be interested in hearing about readers experiences with specific brands of solar panels over the long haul in the comments section below.


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  • Sailboat Wind Generator

Sailboat Wind Generators and Water Turbines

There's no doubt that a sailboat wind generator will make a significant contribution to the amps on call-up duty in your battery bank. And the more wind - up to a point - the greater will be the contribution.

A wind generator, or wind-charger as they're also known, senses only the apparent wind rather than the true wind, which is why they are much more effective on some points of sail than others.

On a typical tradewind Atlantic crossing for example, with the wind astern, their performance is likely to be disappointing. With say a 15 knot following wind and a boat speed of 6 knot, the resulting 9 knots blowing through the blades, your sailboat wind charger won't be earning its keep.

But having made your Caribbean landfall and cruising in the West Indies, it will be a different matter. Now beam winds and breezy anchorages will ensure that your sailboat wind generator provides generous and consistent battery charging.

Types of Sailboat Wind Generator

A 5 bladed marine windcharger

The power produced is generated by spinning a DC generator or a 3-phase AC alternator, with an internal rectifier to convert AC to DC.

In Europe the trend heavily favours smaller diameter, multi-bladed alternator types like the 5 bladed version shown here.

2 bladed marine windcharger

In the US large diameter, two or three-bladed versions still have some avid followers.

These types perform better at lower wind speeds - the quaintly named 'WindBugger' or the Hamilton Ferris (shown here) being good examples of the breed. Power produced is a function of swept area blade speed of rotation - and the faster the speed, the louder the noise. So it will come as no surprise that excessive noise can be an issue with some wind generators.

The slower two-bladed types producing a low frequency 'whump whump', while the high speed 3 and 5 bladed types can produce a penetrating howl that even a teenager wouldn't appreciate.

Manufacturers of the high speed, high efficiency types of sailboat wind generators are at last getting to grips with the noise problem through combining sophisticated blade design with high tech lightweight materials.

And your sailboat wind generator will be more effective in some parts of the world than others. In the Mediterranean for example, where calm conditions are frequent, other forms of green power such as solar panels may be a better option.

Towed Water Turbine Generators

The components of a towed generator, (aka water turbine) are an impellor, 20m to 30m of rotating towline coupled to a pulpit-mounted generator from which a cable delivers the charge to the batteries. Towed generators typically produce around 5A at 6 knots.

They really score over their wind driven brethren in light wind conditions or on long downwind passages where a sailboat wind generator would be seriously impaired by the lack of relative wind. In such situations a towed generator will continue to churn out the amps.

Towed water turbines have a keen following in many long-distance blue water sailors, but they do have their own problems:

  • Drag. They will typically take between a third and half a knot off your speed;
  • At speeds much above 7 knots they tend to skip along the surface, generating nothing but disappointment. This can be compensated to a degree by adding sinker weights to the impellor, and/or using a longer than standard towline. Some manufacturers offer an alternative coarser pitched unit which is good for speeds up to 12 knots, but at 6 knots this version will only be generating around half of what the standard unit would;
  • In heavy seas they can leap out of the water, where the spinning tow rope is likely to snarl up into some impressive kinks and twists;
  • Sharks have been known to consider the impellor as part of their diet.

You should forget about trolling a fishing line when you're towing one of these. The resulting tangle has to be seen to be believed.

Combined Wind/Water Turbine Generators

Towed generators are not much use at anchor, but some manufacturers have overcome this limitation by making them convertible from water to wind mode and vice-versa. The Aquair 100 water/wind turbine is a typical, much favoured example of one of these.

Just occasionally in the marine industry, someone comes up with a really neat idea. This time it was Eclectic Energy Limited, the manufacturers of the innovative DuoGen Combined Water/Wind Generator.

Unlike a towed unit this is a one piece design, which is permanently attached to the transom. Swing it down into your stern wave where it will act as a water turbine; swing it up and you've got a wind charger.

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Enjoy energy independence – With our safe and quiet generator

The Silentwind wind generator is designed to charge batteries on sailing vessels by converting wind energy into electricity.

The generator has been developed and produced for use in marine environment. It can be used in various wind conditions: small, medium and high.

Silentwind is lightweight (6kg), built in aluminum alloy suitable for marine environment, corrosion protected, stainless steel shaft, waterproof sealed bearings.

The Silent Power Blades are produced in carbon fiber, hand-laminated, with great resistance and minimum noise emission, which is the great differentiator of the Silentwind.

The charge controller is external, hybrid (wind and solar energy), has multifunction display and integrated stop switch (electronic / manual).

The parameters can be adjusted directly in the controller or through the application that is available in IOS and Android. Among the available parameters are the brake module, which allows the maximum current adjustment, and the load cut-off voltage module, which regulates the maximum charge voltage of the batteries.

Silentwind starts charging with only 4kn wind, generating 50W at 14kn and 100W at 19kn. As maximum it generates 420W (Generators 12V) at 29kn.

The mast supports are developed for vibration absorption and consequent noise reduction.

For further information, contact us. We are available to assist you with your project.

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10 Best Wind Generators For Sailboats (Reviewed) in 2021


The generators are widely known for their maintenance-free operation and requiring no launch or recovery. Today, wind generators are very common to many sailors in the blue water cruising routes.

With lots of best wind generators for sailboats in the market, finding the best model can be quite a challenge. When you get to choose your model, you will be faced with a lot of options that can kill you with a headache.

However, there is no need to put yourself to the challenge. have done the whole searching for you. I have search through the models and came up with the list below. I have also listed the features that make secure wind generator stand among the others. So, it’s an article you want to read.

1. Tumo-Int Wind Turbine Generator – For Sailboats

2. npower wind turbine – smart controller, 3. sunforce 44444 – best watt wind generator, 4. eco-worthy wind solar – power with mc4 connector, 5. happybuy wind turbine generator – 3 blade low wind speed, 6. windmill (db-400) – wind turbine generator kit, 7. missouri wind and solar – 11 blade wind turbine, 8. eco-worthy turbine generator – house & boat, 9. mophorn wind turbine – controller for power supplementation, 10. eco-worthy wind solar power – best for boat, best wind generators for sailboats (faqs), top 10 best wind generators for sailboats in 2021.

Tumo-Int Wind Turbine Generator

The generator design also allows it to operate amazingly with low noise and a little vibration. The Tumo-Int Wind turbine is an excellent product as it picks upwind in an extraordinarily even in the l ow winds .

The wind boosting controller ensures that the turbine captures every little wind energy and converts to power. Installing the generator on the sailboat is quite simple. The mounting suggested in the instruction is a bit involved, but an accomplished DIY person can achieve it.

  • Permanent magnetic triple-phase
  • Wind Boosting Controller
  • Low energy to start up
  • 1-year warranty
  • Easy installation
  • Incomplete installation kit

NPower Wind Turbine

With 400 watt power, the turbine efficiently harnesses wind energy 24/7 AC output power. The three-strong symmetrically designed blades ensure that you get the possible control over long distances.

Additionally, it’s impressive that the Wind turbine system includes power conversion to Direct current (DC) at the battery bank for 12V charging and can be used with 24V or 12V systems.

For the most efficient charging my NPower Marine Grade system uses the reliable MPPT (Maximum Power Point Tracking) smart controller.

  • Powder-coated Fiberglass blades
  • Maximum Power Point Tracking
  • Overspeed/Overcrank Shutdown
  • Weather Resistant construction
  • Pole mounting design
  • Smart Controller
  • Assembly takes time
  • Not backed by a warranty

Sunforce 44444

With its 400 watts or 27 amps maximum power, it provides enough power to charge your batteries. It’s fitted with a fully integrated regulator which automatically shuts down when the batteries are entirely charged.

Additionally, the China-manufactured product takes DIY skills to have it assembled and mounted. The whole unit is 27 L by 44 W by 44 H inches. The unit attaches to any robust pole, building, or the Sunforce 30-Foot Tower Kit. Our Wind Generator here uses a 12-volt battery which is not included.

  • Weatherproof cast aluminum Construction
  • Portable and Quiet Wind Generator
  • Fully integrated regulator
  • Manufactured in China
  • Ready to use
  • A bit difficult to install

ECO-WORTHY Wind Solar - Power with MC4 Connector

The kit comes with a highly efficient and compact alternator that has high-performance NdFeB permanent magnet. It’s impressive that the system uses a hybrid controller which is PWM that is designed with overload protection.

Additionally, the system automatically shuts down when the batteries which are being charged are fully charged thanks to the fully integrated regulator. The whole wring system shown on the product description is suitable for a 24v system and to use a 12v system you need to connect the solar panels in parallel connection.

  • Long Cable with MC4 Connector
  • A built-in automatic braking system
  • Compact, high-efficient alternator
  • Polycrystalline Solar Panel
  • Somehow expensive

Happybuy Wind Turbine Generator

It’s a 400watt wind turbine that is durable and with low maintenance. The ease of assembly, high efficient, and quite an operation makes it super ideal for your sailboat. Its powerful performance relies on a permanent magnet generator that has low torque.

It also comes with an integrated automatic braking system which reduces the speed when the wind tends to be so much. The high wind energy utilization factor ensures that there is maximum annual power generation.

  • An Integrated automatic braking system
  • Battery Overcharging Protection
  • Anti-UV anti-corrosion material
  • Battery Discharging Protection
  • Nylon Fiber Wind Leaf
  • Offers low wattage
  • A bit small Tailpiece

Windmill (DB-400)

It’s an entirely self-sustaining stand-alone device which generates clean GREEN renewable energy continuously without your supervision. With 400 watt power, 16.8lbs weight and durable, heavy-duty construction make it ideal and a perfect model to use to charge your sailboat battery.

The best thing about this wind generator package is that it comes with all the parts and accessories needed in having it working.

  • High-quality Polypropylene/Glass Fiber
  • MPPT Maximum power point tracking
  • The inbuilt automatic braking system
  • Manual braking switch
  • UV protection coating
  • 1 Year manufactures warranty
  • Not that powerful
  • Improvement of Customer service could be better

Missouri Wind and Solar

When they turn they turn the generator blades and the powerful motor which provides 2000 watt working power. The unit is hot-dipped galvanized with zinc-coated hubs which provide excellent durability.

It’s designed with an innovative keyed shaft and hub stabilizer and also include a self-tightening cam-lock washer to keep the blade set from spinning on the turbine shaft. The combo system has heavy-duty stars and stripes with a tail and a PMG mounting bracket that ensures you get the best performance.

  • Fully hot dipped galvanized components
  • Raptor carbon fiber blades
  • Permanent magnet
  • Cut-in wind speed
  • No installation kit
  • The installation is difficult

ECO-WORTHY Turbine Generator

The turbine works with even the smallest wind to provide the best working power. Cable labeling makes it super easy to have it together and to work.

The cable adapter connects the controller with the solar panels, and you need to get other connectors to join the turbine with this controller. The over thermal protection shuts down the output protecting it from damages.

  • High-performance nylon fiber blades
  • Monocrystalline Solar Panel
  • Precision molding injection
  • Y Branch MC4 Connectors
  • AC/DC Power Inverter
  • Takes time to have it installed

Mophorn Wind Turbine

The wind blades are made from high-quality nylon fiber that makes it weather-resistant and with its easy assembling with DIY installation, and this is a sailboat generator that you want on your sailboat. The Mophorn 700W wind generator kit is ideal for businesses, green windmill, mechanical energy, and homes supplementation.

  • High-quality stainless steel and aluminum fittings
  • Permanent Magnet Generator
  • Power Supplementation
  • Superior Performance
  • Quite heavy
  • Difficult to assemble

ECO-WORTHY Wind Solar Power

With the combination of all these units allows this turbine Eco-Worthy turbine to offer 1KW power for your sailboat. The set comes with a new style controller which is more efficient and entirely automatic, no need to set any parameters.

The solar panel is constructed from the corrosion-resistant aluminum frame for durability and outdoor use. The design allows it to last for decades and also withstand the snow load (5400Pa) and high wind (2400Pa).

  • 400W Wind Turbine Generator
  • Solar Cable Adapter
  • Hybrid Controller
  • No instructions manual

Best Wind Generators For Sailboats Buyer’s Guide:

With the above information, it’s clear that picking the best wind generators for sailboats from the list is quite hard. As you might’ve noticed, most of the products on this list are quite similar, but some features are distinctive. With the below factors, the choice will be much simpler and straightforward.

Automatic Braking System

With best wind generators for sailboats, there is a breaking system built in to reduce the speed of the turbines when the wind speed gets too high. The turbine also provides protection from overcharging the batteries from and the motor from overheating.

Tower Height

It’s vital that you buy a model that comes with a tall tower which can allow it to take advantage of the high average wind speeds which are possible at elevated heights. The higher you go, the more wind you will get. But when you are finding more breeze, it’s vital that you ensure there are no obstruction structures around it. Remember to check the bridges and the deck cover.


The installation of your best generator for sailboats should be a simple DIY installation. It should come with the necessary DIY equipment kit to help you. The installation instructions should be easy to read and follow. Whatever you do, you must never try to install your wind generator on the roof of your sailboat. That way you won’t jeopardize your boat’s roof structural integrity.

Power Output

You might be counting it as a backup, but you need to make sure that the power output is powerful enough to change the number of batteries you have in your sailboat. I recommend that you also ensure you buy a wind generator that features inbuilt MPPT power tracking. That shows that the wind generator system is quite efficient.

Quality Build

One thing that determines the durability of the best wind generators for sailboats is the construction. That’s why you need to make sure that the model you pick is made from high-end, durable materials like polypropylene and Glass Fiber for the blades. It’s also vital the wind turbine to have a UV protection layer to keep it from damage by harsh UV rays.

Q: How long should I expect my wind generator to last?

A: The life expectancy of a wind generator for sailboats can take around 20 to 25 years depending on the usage. But the moving parts will need to be replaced before that.

Q: How much wind is needed to turn the wind turbine?

A: Wind speeds of as low can rotate small turbines as 8mpH, and on the other hand, the bigger turbine will need something like 13mpH.


I hope it is much easier now to find the best model now than it was before. I also hope the searching process is now much simpler and straightforward. With all this information, you should be able to find a perfect model out of the list of top best wind generators for sailboats.

  • Wind Turbine for RV
  • Batteries for Wind Generators

About the author

wind generator for sailboat

Sharif Miah

I am Sharif, 22, a student, currently doing the BBA program. Besides, I am an online Blogger.

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Green Energy

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  • Offshore wind power

South Fork Wind just became the US’s first complete utility-scale offshore wind farm

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The final turbine is up at New York’s South Fork Wind, making it the US’s first complete utility-scale offshore wind farm in federal waters.

Renews reported today that a South Fork Wind spokesperson told the news outlet, “With the last turbine having been installed at South Fork Wind, commissioning work is ongoing and we are working toward full power.”

Danish renewables giant Ørsted and Boston-based energy provider Eversource developed the 132-megawatt (MW) South Fork Wind. The project achieved its 50% installation milestone on January 18, with six out of 12 SG 11-200 DD Siemens Gamesa turbines complete and online. It reported on Twitter (X) that its final turbine set sail from State Pier in New London, CT, just over a week ago:

#SouthForkWind 's 12th – and final! – turbine set sail from State Pier in New London, CT over the weekend. We're in the final stretch of #BuildingSouthFork . More from @thedayct ⬇️ — South Fork Wind (@SouthForkWind) February 20, 2024

South Fork Wind’s first offshore wind turbine foundation was installed at the end of June 2023, and its first US-built offshore substation was completed at the end of July. It delivered its first power to the grid on December 6.

The offshore wind farm will produce enough clean energy to power 70,000 homes in Long Island, New York. It will deliver clean energy directly to the electric grid in East Hampton via a single transmission line installed in March of last year. The energy produced is being sold to the Long Island Power Authority under a 20-year agreement.

It will eliminate up to 6 million tons of carbon emissions, equivalent to taking 60,000 cars off the road annually over 25 years. 

Read more: Renewables expand to 23% of US electrical generation in 2023, with solar in the lead

To limit power outages and make your home more resilient, consider going solar with a battery storage system. In order to find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage , a free service that makes it easy for you to go solar. They have hundreds of pre-vetted solar installers competing for your business, ensuring you get high quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use and you won’t get sales calls until you select an installer and you share your phone number with them.

Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisers to help you every step of the way. Get started here . – ad*

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Green Energy

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Michelle Lewis is a writer and editor on Electrek and an editor on DroneDJ, 9to5Mac, and 9to5Google. She lives in White River Junction, Vermont. She has previously worked for Fast Company, the Guardian, News Deeply, Time, and others. Message Michelle on Twitter or at [email protected]. Check out her personal blog.

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Consider This from NPR

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A Second Wind For Wind Power?

wind generator for sailboat

Wind turbines are visible from the highway in Atlantic City, New Jersey. The state and the country are betting big on offshore wind power as a means to combat climate change. Rachel Wisniewski/For the Washington Post/Getty Images hide caption

Wind turbines are visible from the highway in Atlantic City, New Jersey. The state and the country are betting big on offshore wind power as a means to combat climate change.

About two years ago, New Jersey's Democratic Governor Phil said that the state would be partnering with the Danish company Orsted, the largest developer of offshore wind projects in the world. The company had agreed to build Ocean Wind 1, the state's first offshore wind farm, powering half a million homes and creating thousands of jobs in the process. The following year, Orsted inked another deal with the state for Ocean Wind 2, a second offshore wind farm with similar capacity. After years of review, the projects were approved in summer 2023. Construction of the first turbines was slated to begin in the fall. And then Orsted backed out, cancelling the contracts full stop. Despite the setbacks, Murphy is still all-in on wind. A month after Orsted dropped out, Murphy directed the state's Board of Public Utilities to seek new bids from offshore wind developers. And the state just approved two new offshore wind contracts. After several setbacks, could this mean a second wind for offshore wind? For sponsor-free episodes of Consider This , sign up for Consider This+ via Apple Podcasts or at . Email us at [email protected] .

The episode was produced by Avery Keatley. It was edited by Sadie Babits and Courtney Dorning. Our executive producer is Sami Yenigun.


  1. Wind generators

    wind generator for sailboat

  2. Marine Wind Generators for Sailing boats and Yachts

    wind generator for sailboat

  3. 10 Best Wind Generators For Sailboats (Reviewed) in 2021

    wind generator for sailboat

  4. How-to: Installing a Wind Generator

    wind generator for sailboat

  5. Know how: Wind Generators

    wind generator for sailboat

  6. Top 10 Most Efficient Wind Turbine for Boats

    wind generator for sailboat


  1. Introduction to Wind Energy & Wind Generators for your boat with Marlec

  2. EP 09: Solar & Wind Generator Installed on our Sailboat


  4. Thinking of Wind Power for your boat? Rutland Windchargers 504, 941i, 1200, features and review

  5. Clark's DIY WIND GENERATOR, 3 Phase to DC power on a sailboat (Sailing SV Temptress)

  6. Wind power baby! Installing our D400 wind generator


  1. 5 Best Wind Generators For Sailboats (2024)

    4.) Rutland 1200. One of the quieter wind generators out there, the U.K. made Rutland has a long track record of dependability and customer satisfaction. A manual switch is used to stop the blades when high wind is expected, there is no auto-brake.

  2. Sailboat Wind Generators: The Ultimate Guide 2024

    A sailboat wind generator, also known as a marine wind turbine or wind charger, is a device for capturing wind energy and turning it into electricity. Sailboat wind generators typically have 3 or more long, aerodynamic rotor blades attached to a central hub.

  3. How to Install a Wind Generator on a Sailboat

    Learn how to install a wind generator on a sailboat and how to choose the right equipment, blades, and power needs. A wind generator is a reliable and cost-effective source of renewable energy that can charge your boat's batteries while you are away from the grid. Find out the advantages, disadvantages, and tips for installing a wind generator on your sailboat.

  4. Best Wind Generators for Sailboats of 2024

    Quick Answer - The Best Wind Generators for Sailboats. AutoMaxx DB-400. View at Amazon. Primus Wind Power Air-X Marine. View at Amazon. Nature Power 2000W. View at Amazon. Missouri General Freedom II. View at Amazon.

  5. Best Marine Wind Turbine Generators For Boats

    Learn how to choose a marine wind turbine generator for your sailboat based on blade design, regulation, and charge controller. Compare the best models from Auecoor, Air Breeze, and Leading Edge. Find out the pros and cons of horizontal and vertical axis wind turbines.

  6. MarineKinetix MK4+

    The MarineKinetix MK4+ is a simple to install, hands-off, super-quiet wind-energy production system made especially for the marine environment. This high-output, low start-up-speed system utilizes the best of European wind-science in its design. In addition to its leading-edge high-output dual-bearing 3-phase permanent magnet generator, it also ...

  7. Know how: Wind Generators

    Despite the growing popularity of hydrogenerators and ever more efficient solar panels, wind generators are still a common sight on bluewater cruising routes. At the outset, it's important to note the advantages and limitations of wind power for keeping the batteries charged. On the plus side, the generator will keep pumping out power at ...

  8. Best Marine Wind Generator 2021

    A guide to help you find the best marine wind generator for your boat. Compare six different models based on power output, build quality, features, and price. Learn how to install a wind generator and what to look for in a high-quality one.

  9. Choosing a Wind Generator

    1. When cruising sailors think of renewable energy, their thoughts immediately turn to the wind. When selecting a marine wind generator for your boat, several factors must be taken into account, and separating fact from fiction is hard. Claimed output data for specific units can vary greatly from real-world performance.

  10. Power Sources for Life Off the Grid

    Determining the right-size wind generator for your sailboat starts with calculating your vessel's power needs. "There's no minimum-size ­vessel for a wind turbine to make sense," Kruger says. "But if you're getting into larger vessels, such as a Swan 88, you would definitely want to be looking at the Nature Power 2,000-watt system

  11. Wind generators

    RUTLAND 1200 £1,195.00. The recently-launched, three-bladed R1200 has been purpose-built for the marine environment and, when combined with the intelligent HRDi charge controller, looks to be one of the most powerful and efficient wind generators on the market. Thanks to a unique blade design this model also boasts a very low start-up speed ...

  12. Marine Wind Generator Test

    The micro-wind turbines assembled for this comparison include the KISS High Output Wind Generator, the Rutland 913, the Superwind 350, the Ampair 100, and a prototype of the Air Breeze. ... Practical Sailor has been independently testing and reporting on sailboats and sailing gear for more than 50 years. Supported entirely by subscribers ...

  13. Can A Wind Generator Power My Sailboat?

    A sailboat wind generator system is relatively simple, consisting of three main components: The wind generator, a charge controller, and the battery bank. The wind generator harnesses the wind's energy and converts it to electricity. The charge controller conditions the power from the wind generator for safe storage in the battery bank.

  14. How-to: Installing a Wind Generator

    Every such project should start with an assessment of the boat's power needs. Once you've determined the amount of current your fridge, stereo, laptop, lights et al consume over 24 hours, you'll have a fair idea of not only the size of battery bank you'll require but how many amps your charging devices will need to deliver.

  15. Marine Kinetix MK4+Marine Wind Generator

    MarineKinetix wind turbines have become the serious cruisers choice. Cruising Solutions was an early-adopter of the MarineKinetix Wind Generator, and after having one on our own cruising sailboat for more than 7 years of full-time cruising, and after interfacing with scores of owners, we can honestly say that we believe that this is one of the ...

  16. Best Wind Generators For Sailboats

    Overall, the Marine Kinetix MK4+ is an incredible wind generator and a great choice for any boat or RV. If you're looking for a quality, durable, and quiet wind turbine, the Marine Kinetix MK4+ is definitely the one for you. Tech Specs. Rated power output: 450 watts. Rated voltage: 12/24/48V.

  17. The Best Wind Generators for Sailboats: Power Up Your Sailing Adventure

    A wind generator is a device that captures the wind's energy and converts it into electricity, which can be used to power your sailboat's appliances and electronics. In this article, we will be discussing the best wind generators for sailboats.

  18. Choosing a Wind Generator for a Sailboat

    Correct Voltage. Wind generators should be matched to your primary battery bank—the one that you'll be charging. Most boats will be 12 volts, and a few will be 24. 48-volt systems are becoming more popular on electric yachts and those using the battery bank for big consumers like air conditioning.

  19. Solar Panels vs. Wind Generators

    For most U.S. sailors contemplating investing in renewable energy sources for the first time, it makes sense to buy a solar panel before a wind generator. For about $700, you can buy a pair of 60-watt panels that can generate about 240 watt-hours or 20 amp hours (assuming four hours of peak sunlight). This won't cover the amp-hour ...

  20. Will A Sailboat Wind Generator Transform Your Battery Charging?

    Sailboat Wind Generators andWater Turbines. There's no doubt that a sailboat wind generator will make a significant contribution to the amps on call-up duty in your battery bank. And the more wind - up to a point - the greater will be the contribution. A wind generator, or wind-charger as they're also known, senses only the apparent wind rather ...

  21. Marine

    The Silentwind wind generator is designed to charge batteries on sailing vessels by converting wind energy into electricity. The generator has been developed and produced for use in marine environment. It can be used in various wind conditions: small, medium and high. Silentwind is lightweight (6kg), built in aluminum alloy suitable for marine ...

  22. 500 Watt Marine Grade 12/24V Wind Generator

    NATURE POWER 500 Watt Marine Grade 12/24V Wind Generator. This wind turbine can produce up to 500-Watts of power. Use with an inverter to run small TVs, phones, lights, radios, and power tools, in your cottage, cabin, work site where power from the electric company is too expensive or not available. Made of cast aluminum and marine grade ...

  23. 10 Best Wind Generators For Sailboats (Reviewed) in 2021

    My second best wind generator for sailboats id the high-performing NPower Wind Turbine. One thing I love about thing model is the high-quality marine-grade construction which gives it versatility in sea environments. With 400 watt power, the turbine efficiently harnesses wind energy 24/7 AC output power.

  24. South Fork Wind just became the US's first complete utility-scale

    The final turbine is up at New York's South Fork Wind, making it the US's first complete utility-scale offshore wind farm in federal waters. ... with six out of 12 SG 11-200 DD Siemens Gamesa ...

  25. A Second Wind For Wind Power? : Consider This from NPR

    The following year, Orsted inked another deal with the state for Ocean Wind 2, a second offshore wind farm with similar capacity. After years of review, the projects were approved in summer 2023.