yachting solar power

Yachting Monthly

• Digital edition

Best Solar panels for off-grid power and keeping batteries charged

• Phil Sampson
• November 28, 2022

We take a look at 6 of the best solar panels for boats, from folding units to cutting-edge flexible panels

Free power forever? If only it was that simple! Photo: Graham Snook

For many in the boating community, solar panels represent something of a holy grail. They are, after all, the gift that keeps on giving, aren’t they? Free power forever, (or many years anyway), coupled with zero running costs – what could possibly be better than that?

All you have to do to make this dream come true is banish the memory of the purchase price from your mind – something boaters are notoriously adept at doing – and wait for the sun to shine. If only it were that simple…

The fact of the matter is that there are costs associated with solar panels beyond the price of the panels themselves. While some types of panels can be simply laid on the deck, in many cases some form of mount will be required.

Then there’s the wiring to hook them up to your battery, plus any fitment and/or cosmetic work needed to hide the cabling from view. If your panels are to be left connected permanently, you’ll require a regulator too.

This will prevent both overcharging and a reverse flow of power out of the battery after dark. If you do not fit a regulator, a blocking diode can be used to halt the reverse flow instead.

But once all of the above have been overcome – and providing you’ve done your homework to ensure your panels will generate sufficient power to cover your needs – then, yes, it’s a power free for all!

There are many other benefits to boat solar panels too: First and foremost, they work all on their own – solar panels are automatic, so you can just let them get on with the job.

Apart from the occasional wipe over and a wiring check, they’re largely maintenance-free too. Unlike wind generators, (especially like the one with wonky bearings on that boat moored next to you), they don’t make any noise.

And finally, your batteries will be pleased, because keeping them from going flat can extend their life.

Here’s our choice of the best boat solar panels.

6 of the best boat solar panels available right now

Giosolar 1,000W flexible solar panel

Best flexible boat solar panel

Delivering a mighty kilowatt of power, (not far off the amount used by a one bedroom house), this Giostar package comprises ten separate 100W panels, each of which is 1,050 x 540 x 2.5mm in size.

Capable of charging either 12 or 24V batteries, a kit of this magnitude is one for the most serious of solar enthusiasts – Eco Experts reckons 660-990W is sufficient for a liveaboard.

Giostar panels are abrasion resistant, anti-rust and dust proof and their junction boxes are sealed and waterproof. The panels are also light, thin and flexible, and can withstand being bent up to 30 degrees.

Reasons to buy: Incredible amount of power, panels are abrasion resistant as well as anti rust + dust proof

Reasons to avoid: Premium price

Price: £1,464.45

Buy it now on Amazon (UK)

Note: We may earn a commission when you buy through links on our site, at no extra cost to you. This doesn’t affect our editorial independence.

Ecoflow 160w portable solar panel.

Mobisolar 100W foldable solar panel

Best foldable boat solar panel

Mobisolar’s foldable panels are light (4.5kg) and measure 121 x 56.5 x 3 cm when unfolded, with the longest dimension reducing to 60 cm when folded, making them easy to transport.

The panels use advanced technology to provide superior performance, with each panel subjected to a thorough testing routine before and after assembly.

So confident is Mobisolar in its products that the company stands behind its panels with a two-year defect warranty and a five years’ electrical performance warranty.

For maximum flexibility in operation, three USB power outputs are fitted per panel, one delivering 100W, the second 60W and the third 10W.

Reasons to buy: Foldable, lightweight and long warranty

Reasons to avoid: Not resistant to the elements, doesn’t feature mounting holes

Price: £145.00

Buy it now on eBay

Eco-worthy 100W solar panel kit

With 100W panels being ideal for keeping batteries topped up, our second offering in this power class is from Eco-worthy, a major player in the solar panel field.

Competitively priced, our link below is for a kit which includes an LCD control unit and four ‘Z’ brackets in addition to the panel itself.

The Eco-worthy 100W panel is of the monocrystalline type, which means their cells are made from an ingot grown from a single silicon crystal of high purity. It’s also a rigid panel, so this particular product would need to be mounted on a frame or flat surface.

Reasons to buy: Competitively priced, Features LCD panel, brackets

Reasons to avoid: Only a year warranty, not resistant to elements

Price: £113.99

PV Logic 20W Flexi solar panel

Offered by Force 4 Chandlery, this lightweight semi-flexible solar panel comes complete with a dual battery solar charge controller.

The panel is completely waterproof thanks to its six-layer, heavy-duty laminate finish, and should a wayward crew member plod over it in their size 9s the panel’s dimpled top surface is ‘self healing’.

The controller can handle both 12 and 24V systems and the panel’s PWM (Pulse Width Modulation) charging system is efficient and battery-lifetime friendly.

Supplied with LED battery-status indicators and 4 metres of cable, PV Logic Flexi panels can be bonded to flat or curved surfaces.

Reasons to buy: Lightweight, waterproof, dual controller

Reasons to avoid: Lacks mounting options

Price: £149.95

Buy it now on Force 4 Chandlery

Powoxi 10W solar panel

At the budget end of the market comes this Powoxi 10W solar panel charger kit. While you won’t go far on just 10W of power, this kit claims to be capable of charging and maintaining various 12V batteries.

The kit features a fully automatic charging and maintenance controller, which provides intelligent three-level charging and protection against short- and open-circuits, under voltage and overloading.

A reverse flow system is included and the interface is described as ‘plug and play’. While the panel is rainproof, it will not withstand immersion in water, so this is a product to perhaps leave behind on the dock when you take to the water.

Reasons to buy: Great budget option, plug and play

Reasons to avoid: Not waterproof, won’t go far on 10V

Price: £27.59

Eco-worthy 10W/5W solar panel

The least pricey option we could find anywhere, this baby 5W solar panel is simply a trickle charger. But if that’s all you need then look no further, for this is another Eco-worthy product.

The technology in the panel is polycrystalline, so it’s not the most efficient on the market, but for this power that’s hardly a great concern.

The panel is supplied with two charging options; a pair of crocodile clips which attach directly to the battery, and a cigarette lighter plug.

According to the product’s eBay listing, this seller alone has sold approaching 3,000 of these units – and at this price, we can understand why!

Reasons to buy: Incredible price, can be charged via car lighter plug

Reasons to avoid: Small, not very efficient

Price: £9.99

• solar electric yachts
• Soel Senses 62
• Soel Senses 82
• Soel Shuttle 14
• Custom model

SOEL YACHTS

Solar electric yachts.

With dedication and passion for high tech, sustainability and excellent design, Soel Yachts creates solar electric yachts that promise high efficiency, low emissions, outstanding comfort, low maintenance, and significantly reduced costs of ownership. We are driven by an unwavering commitment to accelerate the transition to sustainable and autonomous mobility on the water.

ENJOY THE RICHNESS OF THE SEA

Our solar electric catamarans combine all the elements for a luxurious and environmentally conscious aquatic lifestyle. With zero CO2 or noise emissions on board, you can reconnect with your senses and fully enjoy the journey.

electric models

The Soel Yachts portfolio offers solar electric catamarans for both private and commercial applications. With the vast experience gathered trough different projects worldwide and boats successfully performing on a daily basis for many years, we gladly can discuss individual requirements and find the ideal solution for your preferred electric yacht and destination

PIONEERS SINCE 2007

Bringing over 15 years of extensive expertise in electrifying solar electric yachts since 2007, we have been pioneers in the solar yachts industry. Our integral solar electric systems in-house have impressively powered more than 27 circumnavigations of the Earth across the world’s oceans, offering unmatched real-world testing and performance validation for an extraordinary and worry-free sailing experience.

LEARN MORE ABOUT US

INNOVATIVE TECHNOLOGY

At our core, we strive for the perfect balance between cutting-edge technology, purposeful design, and outstanding performance. Our innovative approach combines streamlined hull designs for electric propulsion, engineered in conjunction with our in-house systems, to ensure an exceptional range.

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It is undoubtedly the most effective approach to directly communicate your desires and preferences with one of our partners. They can provide you with a comprehensive presentation of the available options and take you on a virtual tour of your desired model. Our team eagerly awaits your message today to arrange your personalized appointment, which can be conveniently held either online or in person.

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Yacht Solar: Exploring the Advantages of Flexible Solar Panels for Boats

When it comes to sailing the open waters, boat owners are constantly seeking innovative ways to enhance their boating experience while being mindful of the environment. One such breakthrough in marine technology is the utilization of flexible solar panels for boats. In this article, we will delve into the world of marine solar panels, discussing their benefits, applications, and the various options available in the market.

Sailing enthusiasts are increasingly turning to flexible solar panels as a viable solution to power their boats sustainably. These innovative panels offer significant advantages over traditional rigid solar panels, making them a popular choice among boat owners worldwide.

1. Understanding Flexible Solar Panels for Boats

1.1 what are flexible solar panels.

Flexible solar panels, also known as thin-film solar panels, are made of lightweight and flexible materials such as amorphous silicon. This flexibility allows them to conform to various curved surfaces on boats, making them an excellent choice for marine applications.

1.2 How Do Flexible Solar Panels Differ from Conventional Panels?

Unlike conventional solar panels that use rigid crystalline silicon cells, flexible solar panels use thin-film technology, which makes them more versatile. Traditional panels are bulkier and heavier, while flexible panels are lightweight and easy to install.

1.3 The Advantages of Using Flexible Solar Panels on Boats

The benefits of flexible solar panels on boats are manifold. They are lightweight, durable, and resistant to impacts, making them ideal for marine environments. Additionally, their flexibility allows them to fit on curved surfaces, maximizing the use of available space on boats.

2. Addressing Rust Concerns in Marine Solar Panels

2.1 the impact of rust on traditional solar panels.

Traditional solar panels are often mounted using metal brackets or frames. In marine environments, these metal components are susceptible to rust due to exposure to saltwater and humidity. Rust can compromise the structural integrity and efficiency of the panels.

2.2 Why Flexible Solar Panels are Rust-Resistant

Flexible solar panels do not require metal brackets for installation. As a result, they are not as vulnerable to rust as their rigid counterparts. This advantage extends the lifespan of flexible panels and ensures optimal performance even in corrosive marine conditions.

3. Empowering Boats with Solar Panels and Batteries

3.1 combining solar panels with battery systems.

Integrating solar panels with boat batteries creates an independent and sustainable energy system. Solar panels generate electricity during the day, which can be stored in batteries to power various onboard appliances and equipment, even during cloudy or nighttime conditions.

3.2 Advantages of Using Solar Panels for Boat Batteries

Using solar panels for boat batteries reduces the reliance on traditional power sources, such as generators or shore power. This not only cuts down operational costs but also reduces noise pollution and emissions, promoting eco-friendly boating practices.

4. Exploring Flex Solar Panels for Marine Applications

4.1 the versatility of flex solar panels.

Flexible solar panels can be installed on various boat surfaces, including the deck, hull, and bimini tops. Their lightweight and pliable nature allow them to adapt to the unique contours of different boat designs.

4.2 Installing Flex Solar Panels on Different Boat Surfaces

Boat owners can install flexible solar panels using adhesives or by sewing them into canvas materials. This installation flexibility offers convenience and ensures a seamless integration with the boat's aesthetics.

5. The Rise of Flexible Solar Panels in the UK

5.1 marine flexible solar panels in the uk.

The UK, with its extensive coastline and thriving boating community, has seen a surge in the adoption of flexible solar panels. Boat owners are increasingly recognizing the long-term benefits of harnessing solar power for their marine activities.

5.2 Embracing Sustainable Boating Solutions

The popularity of flexible solar panels in the UK reflects the growing awareness and commitment to sustainable boating practices. As environmental concerns mount, the marine industry is actively seeking eco-friendly solutions to minimize its carbon footprint.

6. The Convenience of Boat Solar Panel Kits in the UK

6.1 all-in-one boat solar panel kits.

Boat solar panel kits offer a convenient solution for boat owners looking to embrace solar power. These kits come with all the necessary components, including panels, mounting hardware, charge controllers, and connectors, making installation hassle-free.

6.2 Harnessing Solar Energy Effortlessly

Boat solar panel kits provide boat owners with a simple and effective way to harness solar energy. By generating electricity from the sun, boaters can extend their time on the water without worrying about depleting conventional power sources.

Read   our  top  notch   articles  on  topics  such as  sailing ,  sailing   tips  and  destinations  in  our   Magazine .  

7. Understanding the Issue of Panel Rust

7.1 common causes of panel rust.

Panel rust in traditional solar panels is primarily caused by exposure to moisture and salty air. It can lead to corrosion and decrease the efficiency of the panels over time.

7.2 Preventive Measures and Solutions

Flexible solar panels, being less prone to rust, require less maintenance. However, boat owners can further protect their panels by choosing anti-corrosive mounting options and performing regular inspections.

8. Harnessing the Power of 12V Solar Panels for Boats

8.1 the advantages of 12v solar panels.

12V solar panels are a popular choice for boats due to their compatibility with standard marine battery systems. They are easy to install and can efficiently charge 12V batteries.

8.2 Enhancing On-Board Energy Efficiency

By installing 12V solar panels, boat owners can optimize their onboard energy consumption and reduce the reliance on engine-driven charging methods, saving both fuel and money.

9. The Best Solar Panel Kits for Boats in the UK

9.1 top picks for boat solar panel kits.

Several reputable manufacturers offer high-quality solar panel kits designed specifically for marine applications. Researching and comparing different kits can help boaters find the best fit for their needs.

9.2 Factors to Consider When Choosing Solar Panel Kits

When selecting a solar panel kit, factors such as wattage, efficiency, and durability should be taken into account to ensure a reliable and long-lasting solution.

10. Enjoying the Sun with Boat Sun Power

10.1 embracing solar energy for recreational use.

Solar power enables boaters to enjoy recreational activities without the noise and fumes associated with traditional power sources. It opens up new possibilities for leisurely and environmentally-conscious boating.

10.2 The Pleasures of Environmentally-Friendly Boating

Boat sun power offers a cleaner and greener way to explore the waters, preserving the marine ecosystem and contributing to sustainable tourism.

11. Exploring Marine Solar Panel Kits

11.1 preparing your boat with solar panel kits.

Installing marine solar panel kits requires careful planning and consideration of the boat's layout and energy needs. Consulting with experts can ensure a well-designed and effective solar power system.

11.2 Advantages of Customizable Marine Solar Panel Kits

Customizable marine solar panel kits allow boat owners to tailor the system according to their energy requirements and space limitations. This customization maximizes energy output and overall efficiency.

12. Sailing the Future: Solar Sailboats

12.1 the concept of solar sailboats.

Solar sailboats take sustainability to new heights, utilizing large solar panels to power electric propulsion systems. These futuristic vessels offer emissions-free and silent sailing.

12.2 Eco-Friendly Sailing with Solar Power

Solar sailboats pave the way for eco-friendly yachting, promoting renewable energy use and reducing the environmental impact of maritime travel.

13. Optimizing Sailboat Solar Panel Mounts

13.1 choosing the right solar panel mounts for sailboats.

Selecting the appropriate solar panel mounts is crucial for maximizing energy production. Properly positioned panels receive the maximum sunlight exposure throughout the day.

13.2 Ensuring Optimal Sunlight Exposure

By strategically installing sailboat solar panels, boat owners can capture more sunlight, ensuring a steady flow of clean energy for their sailing adventures.

14. Sailing with Solar Power: Harnessing the Sun

14.1 how solar panels enhance boat efficiency.

Solar panels offer boat owners a reliable and renewable power source, reducing the reliance on traditional fossil fuels and enhancing overall energy efficiency.

14.2 The Future of Solar-Powered Sailing

As technology advances and renewable energy becomes more accessible, the future of solar-powered sailing looks promising, with boats becoming even more eco-friendly and sustainable.

15. Finding the Best PV Panels for Boats

15.1 understanding photovoltaic panels.

Photovoltaic (PV) panels are the heart of any solar power system. Understanding their efficiency and construction is essential for selecting the best PV panels for boats.

15.2 Selecting High-Quality PV Panels for Boats

High-quality PV panels offer better performance, durability, and longevity. Investing in top-tier panels ensures a higher return on investment and a more eco-friendly boating experience.

Embracing solar technology in the form of flexible solar panels offers boat owners a clean, sustainable, and cost-effective way to power their vessels. The advantages of flexible solar panels, such as their rust-resistance, installation flexibility, and efficiency, make them an ideal choice for marine applications. As the world seeks greener alternatives, the future of boating lies in harnessing the power of the sun, enabling sailors to embark on eco-friendly adventures on their solar-powered yachts.

So  what  are  you   waiting   for ?  Take  a  look   at   our   range   of  charter  boats  and  head  to  some   of   our  favourite     sailing   destinations .  

FAQs: Flexible Solar Panels for Boats

Yes, flexible solar panels are designed to withstand the harsh marine environment. Their durability, impact resistance, and rust-resistance make them ideal for boat applications.

While flexible solar panels can power several appliances, it's essential to assess your energy needs and consider battery storage capacity for consistent power supply.

No, solar sailboats rely solely on the power generated from their solar panels to operate their electric propulsion systems, making them completely emissions-free.

Yes, the flexibility of these panels allows them to conform to various boat surfaces, including curved ones, providing multiple installation options.

A Guide to Yacht Solar Panels and Wind Generators

• by yachtman
• September 9, 2023 August 26, 2023

Yacht solar panels and wind generators are innovative sources of renewable energy for marine vessels. Designed to capture the power of the sun and wind, these technologies provide an eco-friendly alternative to traditional fuel-powered systems. Yacht owners can reduce their carbon footprint while enjoying a sustainable and autonomous power source.

In recent years, solar panels have grown in popularity. Technology has improved, and people are more aware of environmental sustainability. These panels are typically installed on the deck or roof of a yacht. Photovoltaic cells convert sunlight into electricity , which can charge batteries or power appliances.

Wind generators also generate renewable energy. Turbines mounted high above the waterline capture kinetic energy from the wind. Rotating turbines produce electricity, which can be stored or used immediately.

Solar panels and wind generators can work together, complementing each other’s performance. Yachts with limited space for solar panels can benefit from wind generators. They generate power even when sunlight is scarce.

The idea of using natural sources to power yachts dates back decades. Sailing enthusiasts sought greater independence from fuel-based propulsion systems. Technology advanced, and solutions that could withstand harsh marine environments became more efficient and affordable.

Today, yacht owners are embracing these eco-friendly technologies. The combination of solar panels and wind generators provides a clean energy solution and reduces reliance on external fuel sources during extended voyages. By utilizing these renewable energy alternatives, yachts can navigate the open waters with minimal environmental disturbance. Sailing can be truly sustainable and enjoyable!

Benefits of Using Solar Panels and Wind Generators on Yachts

Solar panels and wind generators offer many advantages to yacht owners. Let’s explore them!

• 1. Renewable Energy Source: Solar panels and wind generators make use of nature’s power, providing an eco-friendly and sustainable energy alternative.
• 2. Cost Savings: Solar panels and wind generators generate electricity at no fuel expense, helping to reduce energy costs.
• 3. Eco-Friendly Solution: By relying on renewable energy sources, yachts can decrease emissions and contribute to a greener environment.
• 4. Quiet Operation: Unlike noisy diesel generators, solar panels and wind turbines are silent, resulting in a peaceful yacht experience.
• 5. Reliable Power Supply: Thanks to advanced technology, solar panels and wind turbines are becoming more efficient and reliable, even during lengthy voyages.

Plus, modern solar panel arrays and compact wind turbines save space without sacrificing style or functionality. On top of that, these systems are low maintenance due to their durable design.

As proof of their effectiveness, Captain James sailed across the Atlantic Ocean using only solar panels and wind generators. Despite some challenging weather, he never experienced any power shortage. This is a testament to how solar panels and wind generators offer trustworthy and sustainable energy sources.

Selecting the Right Solar Panels and Wind Generators for Your Yacht

Choosing the best solar panels and wind generators for your yacht requires thought. First, consider the size and power needs of your vessel. Then, think about the weather you’ll face on your voyages as it impacts the efficiency of both types of energy. Lastly, budget is an important factor.

To help, we made a table of the best solar panels and wind generators for yachts. It has brand, power output, dimensions, weight, and price range. This data helps you make a wise choice.

Additionally, some solar panels are flexible and lightweight – great for small boats. Some wind generators have features like quiet operation or easy installation .

A friend of mine had a yacht and was planning a long voyage. He didn’t invest much in solar and wind due to money. On the journey, there were days of minimal sunlight without enough power from the wind generator . He was stranded until he could recharge the batteries or find another power source.

Getting the right solar and wind is essential for yachts that want to go on trips or stay still without shore power or fuel energy. To pick the best, consider size, power needs, weather, and budget .

Installation Process of Solar Panels and Wind Generators on Your Yacht

Installing solar panels and wind generators on your yacht is a must! Precision and expertise are key for optimal energy production. Here’s a guide to get you going:

• Pick the correct spot: Check the deck space, sun exposure, and wind patterns to get the most out of your setup.
• Secure the gear: Once you know where to put it, fasten the solar panels and wind generators to the deck or mast. Make sure they’re solid to handle rough weather.
• Hook up wiring: Now that it’s in place, connect the wiring to get electricity from the solar panels and wind generators. Use marine-grade wires for safety.

For extra help:

• Talk to pros: Get assistance from specialists in solar panel and wind generator installations. Their insight can help you make the best decisions.
• Store energy: Think about installing efficient batteries. They can save excess energy produced by the solar panels and wind generators, so you have power even when there’s low sun or no wind.
• Keep up maintenance: Have regular inspections and maintenance checks for your solar panels and wind generators. Clear away debris and keep them running great.

Follow these steps and take these tips and you’ll be able to install solar panels and wind generators on your yacht! You’ll reduce your carbon footprint and enjoy a greener yachting experience.

Maintenance and Care for Yacht Solar Panels and Wind Generators

Maintaining and caring for yacht solar panels and wind generators is a must for their optimal performance and long life. Here are some crucial points to keep in mind:

• Inspect them regularly for any signs of damage or wear.
• Clean surfaces with a non-abrasive solution to remove dirt, salt, and other debris.
• Tighten connections and ensure they are secure.
• Check wiring for frayed ends; repair or replace them as needed.
• Store them in a safe place when not in use.
• Hire a professional technician for regular maintenance and servicing.

Using renewable energy sources like solar panels and wind generators on your yacht is not only good for the environment, but it also saves you money on fuel costs. Plus, these eco-friendly alternatives require minimal maintenance compared to traditional power sources.

Safety is key when working with solar panels and wind generators. Wear protective gear such as gloves and goggles to prevent accidents or injuries.

Now here’s a piece of history related to yacht solar panels and wind generators. In the 1960s sailing renaissance, John Elderkin created a wind generator prototype for his yacht. This innovation enabled him to utilize the power of wind for navigation equipment while at sea. It was the foundation of modern-day yacht solar panels and wind generators.

By taking proper care of your yacht’s solar panels and wind generators, you can enjoy clean energy on your sea adventures while making sure they last.

Maximizing energy efficiency with Solar Panels and Wind Generators on Yachts

Solar panels and wind generators can maximize energy efficiency on yachts. Solar panels use photovoltaic cells to turn sunlight into electricity. This is a clean, renewable energy source. Wind generators use turbines to generate electricity in windy conditions.

Solar panels are highly efficient in direct sunlight. Wind generators work best in moderate to high winds.

Solar panels need to be mounted on the deck or roof of the yacht with wiring. Wind generators go on the mast or other elevated spot and need secure mounting.

Maintenance is key for both types of generators. Solar panels must be cleaned. Wind generators need inspection and lubrication of parts. Bad weather can damage both.

For best results, consult a professional installer for guidance on equipment and installation.

Conclusion and Final Thoughts on Yacht Solar Panels and Wind Generators

Wrapping up our chat on yacht solar panels and wind generators, it’s clear they have an impact on sailing power. Integrating them ensures reliable, sustainable energy on board, so you don’t have to rely on traditional fuel-powered systems.

These renewable energy sources have many perks. They’re silent and don’t produce emissions. This means a cleaner environment and less noise pollution. Also, they let you stay at sea longer without worrying about fuel availability or cost.

Solar panels capture and convert the sun’s energy into usable power. Coupled with wind generators, you get consistent energy from sun and wind. Plus, these systems are designed to stand up to harsh marine conditions, like strong winds, saltwater, and UV radiation.

This is a real perk: Boat International Magazine says transitioning to renewable energy sources like solar panels and wind generators can save yacht owners up to 60% in fuel costs.

Frequently Asked Questions

Q: What is the purpose of yacht solar panels and wind generators? A: Yacht solar panels and wind generators are used to generate clean and renewable energy for powering various electrical systems on a yacht, reducing dependency on engines and fuel consumption.

Q: How do yacht solar panels work? A: Yacht solar panels work by converting sunlight into electricity through photovoltaic cells. The panels collect photons from the sun, which create an electric current that can be used to charge batteries and power appliances on the yacht.

Q: What are the benefits of using yacht solar panels and wind generators? A: The benefits of using yacht solar panels and wind generators include lower fuel consumption, reduced carbon footprint, noise-free power generation, and longer battery life. They also provide self-sufficiency and are environmentally friendly.

Q: How much power can yacht solar panels and wind generators generate? A: The power generated by yacht solar panels and wind generators depends on several factors such as the size and efficiency of the panels, the amount of sunlight or wind available, and the energy needs of the yacht. It’s recommended to calculate power requirements before installation.

Q: Can yacht solar panels and wind generators be used together? A: Yes, yacht solar panels and wind generators can be used together to optimize energy generation. This combination provides a more consistent power supply as solar panels work during the day and wind generators produce energy even at night or when there is less sunlight.

Q: What should be considered when choosing yacht solar panels and wind generators? A: When choosing yacht solar panels and wind generators, factors such as the size and weight of the panels, the available space on the yacht, the type of battery system, and the power requirements should be taken into consideration. It’s also important to choose reliable and efficient products from reputable manufacturers.

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How Zero-Emission, Solar-Powered Yachts Entered Boating’s Mainstream

Yacht builders are designing zero-emissions yachts to compete with diesel-chugging rivals. they're so quiet you can hear dolphins swim by., shaun tolson, shaun tolson's most recent stories.

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For many years, yacht builders adding solar panels to their boats discovered those panels would typically power a few things like the electricity and galley, and if they helped with propulsion, it would only carry a boat so far. In the last few years, new companies and boat-builders have emerged that are proving solar can be the main source of power—a big deal considering that most yachts are solitary creatures that are entirely reliant on a specific form of propulsion. No boaters wants to be 50 miles away from civilization in a turbulent ocean and suddenly see their engines go out. It’s not like they can call AAA.

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The problem was that most yacht builders were sticking panels into yachts that were never designed to be self-sustaining. Boyd Taylor realized that several years ago as he was conceptualizing solar-powered catamarans for his company Serenity Yachts . Near the end of 2019, Taylor oversaw the launch of the Serenity 74, with almost 1,200-square-feet of solar panels. Those panels support all of the yacht’s onboard functions, while it cruises at 9 to 11 mph indefinitely.

The yacht functions so capably—using only solar power—because Boyd and his team of engineers started from the water up. They created an electrical system designed to only use solar energy. “We started with the solar system and built the rest of the boat around it,” Boyd told Robb Report. 

Soel Yachts is one of the latest builders to introduce a solar-powered catamaran for emissions-free cruising.  Courtesy Soel Yachts

Once the electrical system was in place, Serenity Yachts ’ team of naval architects and engineers designed a lightweight boat made of carbon-fiber weave, not pure fiberglass. Taylor says a fiberglass boat that size would weigh 8 tons more. Despite that emphasis on lightweight design, a Serenity Yacht still features interior accents and design materials that mean luxury. Granite countertops, for example, are built around a honeycomb structure, so only a thin layer of granite is needed.

Other boatbuilders have gained traction in the marketplace, as well. Soel Yachts , a Dutch company founded in 2011, recently launched its Soel Senses 48, a 48-foot pleasure craft that can sail at a top speed of 21 mph and cruise up to 56 nautical miles at 14 mph. Like Serenity, the Soel Senses 48 was designed for “high-efficiency electric propulsion,” as the company states—in other words, it was designed from the very beginning with solar power in mind.

Silent Yachts is one of the leaders in the solar-powered yachts industry, having just launched an 80-foot tri-deck catamaran that is powered by more than 1,200 square feet of solar panels.

Serenity’s 74-footer makes use of the catamaran’s wide beam, while adding windows across the entire upper salon.  Courtesy Serenity Yachts

In September, BYD Group , a full-service naval architecture and engineering firm in Spain, unveiled a new all-electric, self-sufficient 65-foot coastal cruiser dubbed Eegle. Positioned as a “game changer in the world of eco-friendly motoryachts,” the Eegle is equipped with 323-square feet of solar panels on its hardtop. Those panels, combined with four, 150-kilowatt electric engines, allows the yacht to cruise 1,080 nautical miles at 8 mph.

“Today, solar panels are much more advanced and can be adapted to more surface shapes than in the past, giving us more freedom to install solar panels in more areas,” says Tià Simó, a co-founder of BYD Group.

Beyond offering clean, eco-friendly sustainability, the benefits that an exclusively solar-powered yacht can offer, according to Taylor, are what your senses don’t pick up while on board.

BYD’s master suite shows the design advances that have been made in the last year in solar yachting.  Courtesy BYD Yachts

“You’re running a silent boat,” he says. “You don’t have the smell of diesel fumes or the vibrations and rumblings of a diesel engine. You get to smell the salty air and hear the waves slap against the hull of the boat. You can actually hear dolphins splashing in the water. You not only get to enjoy this incredible scenery and enjoy nature in all of its majesty, you get to know that you’re leaving it the way it was when you came.”

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Solar Powered Yachts

Solar panels are a fundamental element of today’s quest for responsible energy generation. Used in households, commercial facilities, and power stations across the globe, they are also a vital source of energy for solar powered yachts. With significant progress made over the last years, photovoltaic technology has emerged as the natural energy source with the most exciting growth potential.

Thanks to photovoltaic cells, solar panels absorb sun radiation to generate direct current (DC). When sunlight reaches a solar cell, it causes silicon electrons to move. This motion will start the flow of electricity that is captured by wires and directed to an inverter. Inverter technology is then used to convert it to alternating current (AC) ready to power household appliances.

The solar power systems on solar powered yachts usually consist of solar panels, batteries, charge controllers and inverters. While batteries store the energy obtained from the solar panels, charge controllers prevent batteries from overcharging. Solar catamarans with house appliances on board will usually need to convert the DC energy into AC with the help of an inverter.

Sunreef Yachts produces solar panels in-house and uses a new (patent-pending) technology to integrate them within structural components. The panels are made of the industry’s most efficient cells with a peak performance of 24%.

Thanks to the solar cells’ outstanding flexibility, Sunreef Yachts’ solar panels can be mounted on any surface of the solar powered yacht. As a result, they are integrated with various areas on board, such as hull sides, mast, superstructure, bimini roof or bow terrace to maximize energy generation.

With a thickness below 1mm and weighing around 1,8 kg per square meter (average solar panels will weigh between 8 and 15 kg per square meter), they are one of the lightest solar power systems in the world. In addition, tests have proven that thanks to their advanced integration technique, Sunreef Yachts solar panels have a very high resistance to shock and abrasion. This allows them to be used on any surface, including hull sides.

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Meet the 60 Sunreef Power Eco

• By Yachting Staff
• Updated: November 24, 2020

Sunreef Yachts has unveiled plans for the 60 Sunreef Power Eco, which has solar panels fully integrated into the hull sides, superstructure and curved areas of the yacht.

According to Sunreef , these solar panels cover about 740 square feet of space, generating 13 kWp of solar energy. That power generation, along with an ultralight battery bank, is expected to provide what the builder describes as “silent and vibration-free cruising.”

The 60 Sunreef Power Eco can be customized with various layout and color schemes. The exterior includes a flybridge, a full-beam terrace at the bow (that’s a beam of just over 35 feet), and a cockpit along with a garage.

Can a hot tub be added to the 60 Sunreef Power Eco? Yes, the builder’s various layout options include a hot tub aft.

For more information, visit: sunreef-yachts-eco.com

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Wind, water and solar power: how alternative energy has been transformed

• July 15, 2015

State-of-the-art solar power, wind and water generators have transformed the efficiency of alternative power sources. Can we say goodbye to diesel? Rupert Holmes investigates

Imagine a future in which there is never any need to fill up with diesel, buy gas, or top up water tanks and the only constraints are those of needing to stock up with food and maintenance of the boat itself.

It’s a scenario that’s much closer than many realise. The past decade has seen an accelerating pace of change, with technologies that appealed only to a minority, or were prohibitively expensive, now firmly entering the mainstream.

It’s already more than five years since the first of Gideon Goudsmit’s 44ft African Cat cruising catamarans sailed from South Africa to the Netherlands without using fossil fuel, even for cooking, watermaking and hot water.

Although many would baulk at the boat’s 80-mile range under power, this is not a quirky vessel in any other respect – it’s a spacious, fully fitted-out, comfortable cruising catamaran with a high level of equipment. In addition to solar and wind generators providing electrical power for the lightweight design, the boat’s electric propulsion motors were configured to be used as generators when under sail.

And it was by no means the first to do this. When Francis Joyon set the fastest time for a solo circumnavigation in 2007/8, his 80ft trimaran IDEC ll did not have a diesel generator. Similarly, Raphael Dinelli completed the 2008/9 Vendée Globe race without using any fossil fuel.

While few owners aspire to this level of self-sufficiency, incorporating some of these ideas can improve reliability and convenience for more conventional yachts, and may also reduce costs. Perhaps the most persuasive reason of all to fit additional means of generating power is that the presence of multiple charging systems improves a boat’s reliability by introducing a degree of redundancy – if one system fails much of the charging capacity remains intact.

Combining several different technologies can also balance the pros and cons of different power sources.

Thin film solar

A new development that could be the answer to the African Cat’s short range under its electric motors is extremely flexible giant solar panels that can be attached to sails, or even incorporated into the laminate. The durability of this technology was demonstrated at the end of last year by Daniel Ecalard, who used a pair of 3m 2 panels near the head of his mainsail to provide the electrical needs of his Open 50, Defi Martinique , during last year’s Route du Rhum race.

During the race the system stood up to a gale in the Bay of Biscay, in which ten per cent of the fleet retired, and survived the 25-day Atlantic crossing, during which Ecalard logged 4,677 miles, intact.

The system, named PowerSails, was developed by Alain Janet, owner of UK Sailmakers France. Each square metre of the panel is capable of generating 100 watts and, according to Janet, does not need direct sunlight to generate electricity: “In fact, the panels on the sail opposite the sun will generate 30-40 per cent of their maximum output with the indirect and reflected light,” he says.

These panels are made from film that’s 65 microns thick and weighs 100 grammes per square metre. This technology can also be used in other applications – a cockpit bimini shade, for instance, that could generate 1kW on a 50ft yacht.

Prices start at around £700 per square metre of panel, though this is expected to fall as production increases.

Mainstream markets

Janet has produced sails for a Dehler 39 in which a sizeable solar panel is laminated to the mainsail. The technology has also been harnessed by production boatbuilder Arcona, which has announced a version of its 38-footer equipped with an electric engine/regenerating system, sails with solar panels and a big bank of lithium ion batteries.

The boat debuted to great acclaim at this year’s Helsinki boat show, where it won the boat of the show award.

The solar panels in the mainsail are of sufficient size to generate an average of 1,000 watts of power, and the boat has a further 1,000 watts of solar panels. This is sufficient to drive it at four knots under power during daylight hours without taking any charge from the batteries.

Solar power

Almost every aspect of this sector has seen enormous development over the past decade, with worldwide installed capacity having grown by 3,000 per cent since 2005. The resulting economies of scale mean prices have tumbled, while funds are continuing to pour into research and development.

Panels are becoming progressively more efficient, with the best commercially available units now having an efficiency of around 25 per cent, although double that has been achieved in laboratory conditions.

At the moment the thin film panels mentioned above are around 12-14 per cent efficient, but in the future we can expect all types of solar panel to become smaller in area for a given output.

In addition, today’s panels are less susceptible to output drops when in partial shade and give good performance in cloudy conditions. This makes mounting panels on the coachroof, rather than a cumbersome gantry, an increasingly viable option.

Currently solar sells for a very wide range of prices, with most marine grade panels priced from around £200 to well over £500 per 100 watts.

Solar Pros:

√         Improving technology with reducing prices

√         Suitable for a wide variety of boats and conditions

√         Proven ‘fit and forget’ reliability

x         Many boats have insufficient space for a enough conventional solar panels

Hydro generators

The transom-mounted generators, such as those produced by Watt & Sea, originally came to prominence in the IMOCA 60 fleet, with the 2008 Vendée Globe race used as a gruelling testbed for the prototypes. They are capable of producing large amounts of power with minimal drag and can be lifted clear of the water when not in use.

The company’s cruising units are rated at either 300 or 600 watts, depending on the model chosen. The larger of these produces 120 watts of power amps at just five knots of boat speed, rising to more than 250 watts at 7.5 knots.

Over a 24-hour period that represents a significant amount of power that could alone run the majority of systems aboard many 50-60ft yachts, including watermakers, pilots, lights, electronics, refrigeration and water heating.

On the downside, hydro generators are relatively expensive compared with solar and wind generators, with Watt & Sea’s prices starting at a little over £3,000. Moreover, they are potentially vulnerable to damage when docking. The latter can be a particular problem in the Mediterranean, where most mooring is stern to the dock.

The Sail-Gen from Eclectic Energy (from £2,000) or the towed Aquair (a little over £1,000) from Ampair are more economic, though less convenient, alternatives.

Another option is a hybrid drive system with a regenerating function via the boat’s main propeller. Advantages include an absence of peripheral parts attached to the transom that may be susceptible to damage, or detract from a yacht’s aesthetics.

√         High power output

√         Impressively low drag

x         Transom-mounted types are expensive

x         Vulnerable to damage

x         Only works when the boat is underway

x         Impeller of transom-mounted models may leave the water if boat is pitching in a head sea

x         Towed type difficult to deploy and recover

Methanol fuel cells

These small, lightweight units have many attractions for use on board. Most are designed to monitor battery state constantly and automatically start charging once the voltage falls to 12.2V. They are almost silent in operation, with carbon dioxide and water the only exhaust products.

Output ranges from around 3 to 9 amps and more than one unit can be used to achieve higher charge rates. Given that a fuel cell can, in theory, run for 24 hours a day – unlike a marine diesel generator, which is more usually used for only two or three hours – a fuel cell can pump out a useful amount of power, despite the low amp hour rating.

On the other hand the long-term cost of ownership is a drawback. With retail prices of around £2,300-5,000 they are relatively expensive to buy, although installation costs are minimal. Additionally, the platinum catalyst has a finite life of around 5-8,000 hours. As this is by far the most expensive element, it’s clear that fuel cells aren’t yet up to providing power 365 days a year for long-term use.

A further problem is with the fuel, which to achieve the purity required is expensive and generally only available from specific outlets.

At the moment it looks as though fuel cells have more cons than pros for many yachts, although there are some circumstances in which they may make sense. For instance, they are popular on long-distance short-handed raceboats. A fuel cell may also be useful on a boat with a hydro generator that is self-sufficient on power while on passage, but may need an occasional boost when at anchor for long periods to supplement solar and wind charging.

√         Unobtrusive, clean and quiet

√         Easy installation

x         Long-term ownership and operating costs

x         Fuel not universally available

Wind generators

For several decades these were de rigueur for serious cruising yachts. On paper a decent-sized unit is capable of generating the entire needs of a 45-50ft yacht. However, they also have a number of drawbacks, the most commonly cited being noise and vibration in strong winds.

In addition, most cruising routes maximise time spent sailing downwind, which reduces apparent wind strength, which in turn dramatically reduces the output of a wind generator. Similarly, generating power in many anchorages can also be problematic, as the very shelter sought by the skipper also means that wind speed is generally significantly reduced.

Nevertheless, wind generators can be useful in some circumstances; the important thing is simply to recognise their strengths and weaknesses.

Prices range from small units producing just four amps or so for less than £400 to upwards of £2,000, although for most medium to large yachts £1,400-1,900 will buy a suitable system.

√         Capable of producing plenty of power in a strong breeze

x         Noisy and creates vibration

x         Output severely reduced in sheltered anchorages and when sailing downwind

x         Can be bulky and cumbersome

Typical daily power outputs

Typical power inputs for 12V systems (divide the ah figures by 2 for 24V systems)

Assuming the panels are mounted in an unshaded position, each 100W of rated capacity can be expected to produce, on average, around 33ah of charge per day during the UK summer.

For a yacht averaging 150 miles per day (6.25 knots), Watt & Sea’s 300W cruising model will produce around 175ah per day. This rises to around 275ah per day at an average speed of seven knots, but falls to 120ah per day at five knots average.

These have by far the biggest range of potential outputs, with many units averaging less than ten per cent of their rated output over a full year. That would equate to a mean of around 50ah per day for a model with blades of around 1.2m diameter.

However, there are few average days and a 24-hour period with steady 15-knot breeze would see the same unit produce more than 100ah per day. In a 25-knot wind it would be 500ah.

The daily output of fuel cells is very predictable. For example, a model rated at 5 amps would produce 120ah per day, if run constantly for 24 hours.

It’s worth noting that, as the catalyst nears the end of its life this figure will tend to reduce.

Battery monitors

The more complex a yacht’s systems, with multiple power inputs and outputs, the harder it is to keep track of the battery state. However, a properly calibrated battery state monitor will measure all the power flows in and out of each battery bank. This makes it easy to keep track of power consumed and keep charge levels above the 50 per cent of battery capacity needed to ensure good battery life.

Reducing power requirements

Despite the increasing complexities of many of today’s yachts, new technologies mean that power requirements are steadily reducing in many cases. Whereas only a few years ago the accommodation of a quality 60ft cruiser might have been lit by 400W of halogen bulbs, low-power LEDs can reduce that by 90 per cent.

Despite their growing size, TVs can now draw less power than a couple of 12V lights did a decade ago. Similarly, tablets and smartphones are increasingly used for activities that not so long ago could only be done with a power-hungry laptop.

Pragmatic solutions for cruisers

For most yachts it’s worth combining a number of different types of technology, depending on how you sail and where. Here are some options for a range of different scenarios:

1. Cruising in Northern Europe

Despite a reputation for inclement weather, solar power can be a very viable option here, thanks to long daylight hours and relatively cool temperatures. The latter may sound counter-intuitive, but the efficiency of solar panels reduces at higher temperatures.

Whether wind power is worthwhile may depend on where you’re planning to sail and the time of year. In mid-summer in the southern half of the UK, for instance, the wind is typically less than ten knots for 50 per cent of the time, so wind generators are of limited use. However, in western Scotland towards the end of the season you could generate plenty of power, which would compensate for the reduced solar output.

With the longest passages most yachts will make being 300-400 miles, a hydro generator is likely to be of less use than for boats making longer voyages. An exception might be for those planning to spend a lot of time at anchor and who therefore value the ability to arrive at an anchorage with batteries fully charged.

2. Mediterranean cruising

While many marina-based yachts, with ready access to shorepower, in the western Med appear to have been slow to adopt solar power, the opposite is true in the eastern Mediterranean where there are increasingly few privately owned yachts without an array of panels.

As an example, Alan and Deborah Mackenzie’s Lagoon 410 catamaran, based in the north-west Aegean, has three 100W semi-flexible panels. This has proved fractionally too small for their needs – to power a fridge, freezer, powerful fans and a 19in TV/DVD in addition to the boat’s systems. They plan to solve this with an additional panel.

Owners of monohulls tend to be more restricted by the space available to mount panels, although the new thin-film panels clearly offer a wider range of options. Given the relatively short distances most yachts travel on each passage, the same considerations regarding a hydro generator in northern Europe apply here.

Equally, in most parts of the Med, wind power is not viable for much of the time.

3. Caribbean

Here it would be easy to assume that solar is the best option. However, while it can certainly be useful, as the main sailing season is winter, when daylight hours are restricted, daily output is smaller than many owners expect. Given that the islands are in the tradewind belt, wind generators stand to produce a good output here.

4. Tradewind passagemaking

Here it’s clear that hydro generators (or power generation via a hybrid drive) have advantages and can deliver a good charge. Wind power, however, makes less sense for tradewind sailing, owing to the reduction in apparent wind speed when sailing downwind.

The output of solar will also suffer from the restricted number of daylight hours on a typical east to west Atlantic crossing. There are, however, more factors in favour of solar on a west to east crossing, as it is likely to be at a higher latitude – with more daylight.

5. World cruising

If you’re going further afield combining as many options as possible will yield the best rates of charging over a wide range of conditions. This is exactly the route taken by Jimmy Cornell, founder of the ARC, whose new Garcia 45 is fitted with solar, a Sail-Gen water turbine from Eclectic Energy and a wind turbine.

The water generator will create 50W of power at four knots of boat speed, rising rapidly to more than 250W at 7.5 knots. The wind turbine, from the same company, is also a high-power model, with a 1.1 metre rotor diameter, producing approximately 100W in 15 knots of wind, rising to 235W in 22 knots.

For more information:

www.africancats.com

www.sunware.de

www.solarclothsystem.com

www.wattandsea.com

www.efoy.co.uk

Eclectic Energy: www.duogen.co.uk

www.oceanvolt.com

www.ampair.com

www.hybrid-marine.co.uk

www.victronenergy.com

This is an extract from the June 2015 issue of Yachting World

Why Silent technology?

What makes our solar-electric yachts unique and sets them apart from the rest? It is our extensive experience with the technology. By substituting generators with solar power and large battery banks in order to supply energy to all household appliances on board since the mid 1990s and by pioneering the solar-electric drivetrain during the mid 2000s, Silent has gathered about 30 years of experience in optimizing sustainable energy generation on yachts.

As the original brand who invented solar powered electric production yachts , we have always been committed to a technology which was prior considered as a niche. We were already building solar powered yachts with electric propulsion at a time when no other legacy shipyard even considered using this technology in the future.

Since 2009, our electric yachts have sailed 10.000s of nautical miles flawlessly, crossed oceans and hosted charter guests for hundreds of weeks all around the world – across the Mediterranean, Caribbean, Atlantic, Pacific as well as the Indian Ocean.

Recently, it has become increasingly popular within the industry to power catamarans with solar energy. Nevertheless, not all electric yachts are created the same. While it might be easy to equip a boat with solar panels, it is a far more complex process to create an electric yacht that fulfils the full potential of luxury solar yachting. There are many vital considerations when using solar technologies: efficiency, range, reliability, comfort, longevity and sustainability are all criteria to optimize. Inevitably, to cover all these aspects, it needs a clean sheet design from scratch.

Taking an existing fossil fueled powered or sailing catamaran and including solar features on the model will always create a compromised result. In comparison, our fully electric Silent models were designed from a clean sheet and engineered to be fully solar powered from start to finish. This is why our yachts outperform competitors regarding weight, daily solar production, range, speed, consumption, space, safety and life-span.

It is not the kWp promised in a brochure, it is the real energy production and the realistic consumption that makes the difference for you as a customer. It will either enable you to run the A/C for the whole night and to drive dozens of miles without running the generator – or not. A Silent is capable of doing that. This is the difference.

Our founders, Michael and Heike Köhler, were the ones to create the solar yachting space by starting Silent Yachts (then called Solarwave) years before the industry was aware of the advantages of this new approach. Nearly 30 years after starting their initial research, Silent now shapes the future of electric yachting.

Solarwave 46 in Lakka bay, island of Paxos, Greece, in 2010.

Science & Experience Based Design

Bolt-on construction

Our bolt-on construction design makes it easy to replace individual panels for repair or upgrade them to more efficient versions in the future. In contrary, solar panels which are directly integrated into the hull or glued onto the roof are not designed to be replaced when required.

Rooftop positioning

Placing the panels horizontally on the top ensures maximum energy harvest. In comparison to vertical panels integrated into the hulls, this positioning captures more energy from the sun while also protecting the solar cells from being damaged during mooring in a marina or when in contact with sea water.

Zero shade principle

Silent Yachts purposely exclude the addition of sails or wind turbines as they cause the issue of partial shading, leading to a dramatic decrease in energy output and efficiency. Our years of testing revealed that wind turbines actually create more drag during cruising than energy produced at the same time.

Market leading panels

The rigid glass solar panels used on our yachts offer market leading efficiency and 40 years of warranty. Flexible panels mounted on curved surfaces or integrated into the hull of a yacht are generally less efficient, prone to output reducing microcracks and have a much shorter lifespan with a warranty time of only 2 years.

Decades of research, development, optimizing and successfully delivering the full solar yachting experience have put us in a position to lead the industry towards a clean, electric future.

Industry-leading expertise

Purpose Built Vessel Concept

Silent yachts are not conversions of existing boats, but are designed in-house from a white sheet of paper to deliver an uncompromised solar powered experience.

In-house Engineering Department

Our dedicated team focused on innovation, design as well as R&D makes sure we develop cutting-edge solutions which can be implemented rapidly.

Proprietary Drivetrain & Software

The proprietary drivetrain as well as the software that runs all energy harvest and storage systems is designed, developed and engineered by our own in-house technicians.

Performance Optimization

Every single detail of the hardware and software components of our Silent Drivetrain are fully optimized to integrate seamlessly and perform at maximum efficiency.

Complete Thermal Insulation

The electric yachts of Silent are the only models in their class which insulate hull deck and superstructure to ensure maximum energy efficiency during heating and cooling.

Custom Air Conditioning System

The A/C system we developed for our catamarans has energy recuperation as well as heat pumps for hot water heating and is industry leading in terms of its efficiency.

Autonomous System Design

All systems and components on a Silent yacht have been optimized to ensure compound efficiencies that enable unlimited range and ultimately autonomous yachting.

Construction & Craftsmanship

We build our boats in our own yards under strict quality control parameters using the best possible methods and materials.

Bespoke Design & Build

Every one of our yachts is unique. We pride ourselves in incorporating customer specific requirements, while keeping true to our high performance principles.

The ability to easily replace key hardware components such as the solar panels and batteries provides the unique opportunity to upgrade and improve every Silent with future technology.

Upgradable modular platform

At Silent we feel passionately about avoiding built-in obsolescence. This is the driving principle of so many industries, that produce one model in the full knowledge that a later model will supersede it, encouraging the buyer to replace their car, boat, plane, mobile phone for the newest, latest and greatest.

In our view, built-in obsolescence does not work in harmony with nature. Yachts are very commodity rich and costly things to make. Although Silent go to great extents to minimalise our carbon footprint and maximise use of recyclable resources, by far the most intelligent and environmentally friendly method of producing a vessel is to do so with hulls that are designed for solar purpose, efficiency and very long lifespan.

For this reason, every Silent is based on our signature modular platform design. This means that essential hardware components such as the solar panels, batteries and electric motors can be replaced with ease.

As result, our electric catamarans can be upgraded with the latest components years after they were launched into the water for the very first time, making sure the yacht always remains state-of-the-art.

This gives you a piece of mind, knowing that today´s Silent will always be tomorrow´s.

What makes her the most iconic solar yacht in the world

At Silent we have deep affection for the original Silent yacht: the Silent 64. Launched in 2016, this catamaran was the first series production fully solar powered electric yacht in the world. In 2018, she set up a world-record by becoming the first serially produced solar-powered bluewater catamaran to cross the Atlantic. Based on a fully solar optimized design, she back then combined our very best technologies with a philosophy aimed towards maximum efficiency. In that regard, her lightweight carbon fiber hull offers impressive performance even by current standards. Still in daily Silent R&D service today, this yacht is Silent’s elder. Filled with cleverness and like every Silent yacht, she has never let us down.

Silent Group

Our charters offer you the opportunity to book a memorable vacation on board of our electric yachts. Including our helpful crew, consisting of a captain and a chef, you will experience the comfort of solar powered yachting.

As the pioneers of solar yachting, we have almost three decades of experience regarding the research, design and build of electric yachts. Our team, shipyard and the hiring of new talent are the backbone of our operations.

By transferring our solar yachting technology, Silent Resorts develops sustainable beachfront resorts in beautiful locations worldwide. Memberships offer full or part ownership of an eco-property and a Silent yacht.

Create your infinite playground on the water. A selection of premium electric water toys, which can be recharged by simply connecting them to your Silent yacht, as well as other accessories for the ultimate experience on board.

Aquanima 40 series

Azura marine, this $500,000 electric yacht can cross oceans on just battery and solar power.

Singapore-based Azura Marine unveiled a new $500,000 electric yacht that they claim can complete “non-stop ocean voyages powered only by sunlight.”

The electrification of transport is slowly spreading into maritime transport.

While the focus has been commercial vehicles like ferries, it is also reaching leisure and personal vessels.

Azura Marine is the latest to enter the space with its first solar-powered catamaran yacht, the Aquanima 40 series, unveiled earlier this month in Bali, Indonesia.

The company describes the electric vessel:

“She is a unique 4 cabin, 8 guest yacht designed for extended cruising without any need for fossil fuels or refuelling stops of any nature. The Aquanima 40 solar-powered catamarans are also equipped with a 56 m2 rain catchment system, water maker and air conditioning water recovery – rendering water supply stops unnecessary too.”

Here are a few pictures of the Aquanima 40 series solar yacht:

Azura Marine claims that the vessel can continuously cruise thanks to its large 10 kW solar power system and 60 kWh battery pack.

Here are some of the specs of the Aquanima 40 series:

• LOA 13,25 m
• Draft 65 cm
• Propulsion Power: 2 x 10 kW
• Solar Power: 10 kW
• Main Battery Bank Capacity: 60 kWh

The company writes about the capacity of the electric vessel:

“For the owner, this means limitless cruising with no fuel costs, no noise or vibration, no smells, no polluting emissions and no disturbance of marine life.  The electric motors are virtually maintenance-free with only a couple of low-cost bearings to be replaced at 20,000 hours (more than a typical lifetime usage of a yacht).”

Here are some pictures from inside the electric yacht:

The company lists several amenities available onboard its new electric vessel:

“The yacht offers all the comfort to be expected of a modern cruiser with air conditioning, fully equipped galley including ice maker, hob and sink.  On this version, the bathroom and toilet is on main deck for greater ease of access as this vessel is strongly oriented towards enjoying the outdoors, exploring hidden bays with the electric dinghy or diving on pristine reefs. Onboard Solar Eclipse, all water is self-produced, including fresh and drinking water, thanks to the yacht’s water-maker, air conditioning water recovery system and gigantic rain water collecting solar roof.  She features a high quality marine sound system and all round WIFI connectivity.”

Azura Marine Co-Founder and CEO Julien Mélot commented on the launch of the new electric vessel:

“it was an enormous thrill to launch the yacht last week and undertake her first few miles at sea.  The yacht met all our expectations and while the design makes for near silent operation with exceptional responsiveness, it was incredible to actually experience it  – and all in the knowledge that we were not producing any harmful pollution or emissions.  With some strong winds and a very tight to enter marina berth, we were delighted by how easy the yacht was to manoeuvre.  We simply cannot wait to take her out on her maiden voyage.”

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Fred is the Editor in Chief and Main Writer at Electrek.

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