silent yachts catamaran

• Yachting World
• Digital Edition

Review: Silent 55, the extraordinary solar powered yacht

• January 18, 2019

Silent Yachts is tapping into the solar zeitgeist and creating a new meaning for the term ‘powercat’.  Sam Fortescue reports

There is a slow, silent revolution under way in the yachting world. It is a revolution that is introducing tonnes of lithium and a sprinkling of silicon to the spec list of new boats. Holding out the promise of silent mobility, plus limitless domestic power on board, it made a big splash at the last Cannes Festival of Yachting – not least thanks to the new Silent 55 catamaran which debuted there.

From the pontoon side, the Silent 55 looks like a typical modern catamaran, with a big coachroof studded with windows and a flybridge helm. Except there’s no mast. Now, bear with me here. I realise that this is a sailing magazine, but we will shortly get back to more familiar territory. The unique qualities of this catamaran only become apparent from up top, where an expanse of solar panels stretches away fore and aft, embedded into the coachroof. The hard top itself carries yet more panels, and can be folded down flush to give an unshaded solar array of 49m2. During the heat of a summer day in the Med, this is capable of generating 10kW of power and up to around 60kWh in the course of the day.

But to make a solar system work in reality, Köhler had to go back to the drawing board on yacht design. The saloon and hulls have extra thermal insulation to keep air-con losses down, and the use of carbon and aramid in key areas helps reduce the overall weight to a decent 17 tonnes (a Lagoon 52 weighs 22.5 tonnes). He has tried to keep windows out of the direct sun with long overhangs and in contrast to the Lagoon’s 12 deck hatches, the Silent 55 has just two.

Holistic design

On the other hand, it has lots of opening windows, to allow a natural draught to do its job. “It’s a holistic approach – you can’t take the batteries and the drivetrain and drop it into another boat.”

Of course, using the propulsion system quickly takes its toll of the boat’s 140kW battery bank. The model on display at Cannes had two 135kW motors, giving you just half an hour of silent motoring flat-out, albeit at a top speed of over 20 knots. More reasonable 30kW engines and a single-digit speed give you greater range. Nonetheless, the electric drive alone isn’t going to allow you to outrun a storm, or race home after a day at anchor, so the boat is designed to work with a generator hidden in the heavily insulated transom of its starboard hull. At cruising speed of around 5-6 knots, Köhler says there is rarely any need to use the generator, citing an owner who has just emailed him triumphantly about a second year totally generator-free. “In the end, you have to compare it to the performance of a sailing boat,” Köhler says. “It is as fast as a sailing boat in similar conditions – after all, there is no wind without sun.” He went so far as to tell me during the sea trial in Palma, Mallorca, that he believed the majority of sailors would happily dispense with the hassle of sails and a rig if only they could enjoy silent motoring and anchoring. “As soon as people realise the incredible concept of this boat, they won’t understand why they ever did anything else.”

The market does not seem to agree with him – yet. Sales of the boat have been good – they have already sold six, five of which are already in the water. But of those, four customers have taken the sail option, which means planting a 19.7m tall mast complete with boom and rigging slap bang in the middle of the coachroof solar array. “I was a bit amazed,” Köhler admits. “The shade from the rig reduces the energy generated by the solar area, while it costs more and is heavier, so consumes more fuel. Maybe it is for optical reasons.” In fact, the shade of the rig slashes the average yield of the solar panels in half. In the Med, that means around 30kWh per day. But perhaps it figures. The typical profile of buyers is an environmentalist who has a Tesla electric car and is “an early adopter who likes to have things before others”. And at low speeds, with modest use of the air-con, the reduced energy generation should still cover daily consumption.

The performance under sail should be reasonable because of the lightweight build of the boat, its broad 8.47m beam and stub keels added to each hull. Control lines are led back via conduits in the coachroof to the flybridge helm station, to make single-handing under sail a possibility.

More interesting, I think, is a sort of halfway-house option using a kite rig. This optimises the performance of the solar panels and gives plenty of propulsion. On the smaller 55 and the 64, Silent Yachts currently recommends a 19m2 kite that costs around €25,000 – a fraction of the cost of a new mast, boom, shrouds and sails. “The sail automatically makes a figure of eight above the boat, and you can steer it with a joystick or an app on an android phone,” Köhler explains. “It can propel the 55 at up to 6 knots, even in light winds.” Perfect for an Atlantic crossing, then.

For the bigger Silent 79, which will hit the water in the summer, a commercial grade Sky Sail system needs to be used – a smaller version of the ones used on cargo ships. This kite can propel the boat at ten knots, but it costs more than ten times as much as its smaller cousin. Both are capable of pulling the boat upwind. So far, so new. But outside the novel energy and propulsion system, the Silent 55 aims to do what many other cruising catamarans are trying to achieve. “Most of our clients order for circumnavigation and long-term cruising,” Köhler says. So the boat is aimed to be as comfortable and capable as possible with watermakers, TVs and an induction hob that all capitalise on the boat’s abundant energy. A flexible configuration allows owners the choice 
of between three and six cabins – the latter designed for charter. The owner’s cabin lies forward of the saloon, under the windows of the coachroof, which provide magnificent views and abundant natural light. There’s a walk-around bed and steps down into the starboard hull give access to an en-suite shower room and heads.

In my view, the best cabin lies aft of this, accessed in the traditional manner down steps out of the saloon. The king-sized bed lies athwartships and the shower is larger than that of the master cabin. There’s more space down here, better headroom and still plenty of light courtesy of the many hull lights.

When I had the chance to sea trial the Silent 55, albeit in motorboat format, I jumped at it. It was a contrary autumn day on Mallorca with 15 knots breeze – just a shame, then, that this wasn’t one of the sailing configured versions.

To start with, getting on board is made really easy courtesy of deep boarding platforms on the skirts. She feels rather square because of that vast, glazed saloon with its deep overhang, and perhaps because of the utilitarian nature of the hard top, which is really about supporting more solar panels. Nevertheless, the side decks are broad and uncluttered. The space up top is designed to concertina down flat, hence the hydraulic rams, fold-down seat back and lowering console. It makes a great sailing position, though, with all round visibility, and is also perfect for sundowners at anchor. When the rain comes down, this feels quite exposed, but there is a fully sheltered helm at the front of the saloon, and it is also possible to drive the boat from anywhere using a tablet thanks to smart electronics. Under power, the handling is superb. The quietness of the motors is astonishing, and I gather they’ll be inaudible on the next boat, which will do away with the gearbox. Even in the aft cabins, directly above the motors, there is no more than a distant hum. The boat responds instantly to the power and the wind seemed to have no impact at all. As with any propulsion system, the power consumption jumps as you pile on the speed – it was sobering to see. At 6 knots, both motors drew 10kW but at 8 knots it was closer to 30kW. I liked the huge saloon with its raised table for 360º views. And the sliding door and window gives great access aft, connecting the saloon and cockpit in fine conditions. The finish was smart and in muted tones, feeling more Scandinavian than German.

Intriguingly, at least it seems to me, Köhler has tapped into something with the concept behind Silent Yachts – but not entirely for the reasons that he expected. Buyers are opting for the sail or kite versions of the boat because they want a comfortable wind-powered craft with abundant, quiet energy on tap. It brings a whole new meaning to the 
term ‘powercat’

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Boat of the Week: This Solar-Powered Electric Catamaran Can Cruise Silently and Emissions Free

Minimal emissions from a solar-powered, 60-foot motoryacht is a very big deal. but we found other big features that could be improved., howard walker, howard walker's most recent stories.

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John, Paul, George and Ringo singing “Here Comes the Sun” would make the perfect anthem for Austrian-owned Silent Group’s newest 60-foot power catamaran, the $3 million Silent 60.

Why? Without sunshine, you won’t get very far.

Thankfully, the searing Florida sun is beating down as we take to Fort Lauderdale’s bustling Intracoastal Waterway to try-out this eco-friendly Silent 60. With its roof and foredeck crammed full of solar panels, the sixty-footer is humming along at a leisurely six mph on just zero-emissions battery power.

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The batteries are recharged by solar panels that occupy nearly every available square foot of exterior space.  Courtesy Silent Yachts

Just as its name suggests, the ride is hushed, with just the gentle, soothing sound of water bubbling-up in the wake to interrupt the peace and quiet.

“Silent running is top of the list when it comes to what appeals to our customers. They don’t want to hear engines or feel vibration,” Silent Yachts ‘ in-house designer Juliana Miguel told Robb Report , during the run.

“These days it’s also about fuel costs,” adds US sales director, Philip Bell. “One customer ordered a new 60 after getting tired of using his 80-foot Italian motoryacht for weekend trips to the Bahamas and spending $12,000 on fuel each time.”

The 30-foot beam delivers strong interior space and wide social areas on the outside.  Courtesy Silent Yachts

The Silent 60’s claim to fame? Quiet, zero-emission, electric-only cruising at 7 to 8 mph for up to nine hours, or roughly 100 nautical miles a day. Throttle back to 4 mph, and the company says you have the possibility of near perpetual motion.

We’re sampling the third hull of the constantly evolving Silent 60 series that launched last summer. Silent has been the leader in inventing the solar-powered electric-cruiser niche. Replacing the original Silent 55, the 60 has been such a boat-show hit that more than 30 are currently awaiting construction at Silent’s yards in Fano, Italy and Istanbul, Turkey.

The yacht we’re on is an original folding-hardtop version, with its cantilevered roof panel that, at the push of a button, lowers to cover the small, open flybridge area. Tastes, however, are evolving.

The boat’s 30-foot beam allows for an apartment-sized, open salon.  Courtesy Quin Bassett

According to Bell, most of the new 60s currently in build are “tri-deck” models, featuring a significantly larger flybridge area, a fixed rather than folding roof (also covered with solar panels), and the option of a fully open flybridge, or glass-enclosed “sky lounge,” designed for additional entertaining space or even a master suite.

At the dock, given its 30-foot beam, the 60 looks humongous. To our eyes, it’s not going to win any beauty contests. Towering, vertical hull-sides, a fairly-shapeless upright bow design, and straight up-and-down cabin sides give the catamaran a square-edged, boxy look. All function with little form.

But what the owner gets are huge interior spaces. Inside, it feels like a floating apartment, with a cavernous salon, spacious galley, large dining area, and huge aft deck. Down below are choices of three or four spacious en-suite cabins in the hulls.

A good boat for the sunny canals of Fort Lauderdale.  Courtesy Quin Bissett/Silent Yachts

But the quality of the interior doesn’t track with the boat’s $3 million-plus price tag. Thin cabinet doors, dull-looking fabrics, gelcoat fiberglass on the salon ceilings, faux-wood vinyl flooring, and an inside helm station that was little more than an upholstered board with instruments that looked haphazardly arranged, were all below par, considering the upscale market Silent is targeting.

Miguel says the interior will change with the next generation of 60s arriving towards the end of the year, with a big step-up in terms of quality of materials, attention to detail, style, and fit and finish. So, why didn’t they wait to unveil the boat to the media before they got to that point?

The man at the helm is Silent Yachts’ delivery captain and chief tester Kyle Miller. With a jiggle of a joystick control and a touch of bow-thruster, he maneuvers the 60 out of its tight, side-on slip and eases into the busy Intracoastal Waterway.

All function, no form? The 60-footer’s boxy shape is out of synch with other cat manufacturers that use more curves in their superstructures.  Courtesy Silent Yachts

The yacht features Silent’s E-Power propulsion package, with twin Dana TM4 200kW or 268 hp electric motors and 207kWh lithium-ion batteries. They’re good for an 8 mph cruise speed and claimed 16 mph top speed. There’s also a base version with twin 50kW or 67 hp motors juiced by a 143kWh lithium-ion battery bank. Even Miller admits this is short on power.

The best, and of course the priciest, option is the E-Power+ package, featuring twin 340kW 455 hp motors and 286kWh batteries. It’s said to be good for tide-punching bursts of up to 20 mph.

“For anyone who wants to dash around at 17 knots all day long, our recommendation is to buy a different boat,” says Miller. “The Silent 60 is designed for relaxing on the move, gliding from one anchorage to the next, and being self-sufficient on the hook.”

Open space on the flybridge.  Courtesy Silent Yachts

As we discovered, the 60 isn’t always a Tesla of the seas. Running over 6 mph will necessitate firing up the Hyundai diesel generator for one of every three hours of running time to keep the batteries charged. And that’s not silent.

While ambling along at 6 mph is fine for laid-back cruising, we also had concerns about a lack of reserve power for tackling strong currents and adverse tides.

Even our test boat’s twin 200kW motors struggled to keep the 60 under control when maneuvering against a fast, incoming tide under Lauderdale’s narrow 17th Street Bridge. The bigger 340kW motors are definitely the way to go for running in fast currents or tidal waters.

Galley and dining area  Courtesy Silent Yachts

Without doubt, this new Silent 60 showcases the appeal of electric power on the water. The way it efficiently and effectively harnesses the sun’s rays, its largely zero-emissions running, coupled with its huge and versatile interior space, is impressive for a family cruiser.

Just don’t plan on getting anywhere in a hurry—and beware of fast-running tides.

Read More On:

• Electric Yacht
• Silent Yachts

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New Silent Yachts For Sale

Silent yachts are the industry leader in ocean-going production yachts that are completely solar sustainable and powered by solar energy. seaworthy, luxurious, and built to impeccable standards, silent yachts are already desirable without its solar capabilities. with the abundance of solar panels on board each boat, every silent yachts model is able to cruise for 100 nautical miles in complete silence. even while at anchor, the solar-powered generators keep the yacht powered quietly for an unprecedented boating experience. enjoy all the benefits of a power catamaran with the addition of solar energy..

Silent Yachts

Silent Yachts 80

Silent Yachts 55

Speak To A Silent Yachts Sales Professional

Silent Yachts offer an environmentally conscious choice when it comes to owning a yacht. Silent Yachts currently offers three solar-powered power catamaran models including the Silent 55, Silent 64, and Silent 80. United Yacht Sales is proud to be the U.S. distributor for Silent Yachts and can assist you in your search for the world's first solar-powered yacht. For more information, please contact United Yacht broker Darren Sell at (561) 351-7333 or by email at [email protected] . 

Where are Silent Yachts built?

Silent Yachts are built through two different shipyards depending on the model. The Silent 55 is built at the world-class shipyard of Mazarin German Yachts which also has a production site located in China. For over 70 years, Mazarin has been a leader in quality yacht construction with over 400 yachts delivered. Mazarin are experts in innovative construction processes that are able to produce light weight yachts.

The Silent 64 and Silent 80 are produced at the Italian-based shipyard Consorzio Navale which is a prestigous consoritum of builders and sub-contractors in the industry. The group has serviced many of the major Italian yacht brands such as Ferretti Yachts and Riva Yachts . Additionally, the Silent Yachts 80 features styling and design by Marco Casali and naval architecture by Insenaval.

Are Silent Yachts really completely solar-powered?

The short answer is yes. Owners can choose to go 100% solar-powered or install diesel engines should higher speeds want to be achieved over longer distances. Silent Yachts can cruise up to 100 miles per day by power acquired through its solar panels. Every day the solar panels are able to generate more power than the total consumption needed for propulsion at cruising speeds plus powering all of the appliances on board. 

How does the solar power work? 

The Silent Yachts power system feeds the electric propulsion of the power cat and all of the energy it needs to run the A/C, refrigerators, and other household appliances. Light-weight lithium batteries provide an ample amount of energy for everything on board. The lithium batteries used in Silent Yachts are the most expensive ones on the market, but also the most reliable, safe, and have the longest life span.

Solar panels are integrated to the roof of the flybridge hardtop sections instead of just being bolted on top, resulting in no wind load or resistance againest them. Below is a video explaining how the system functions and operates back when Silent Yachts were originally called "Solar Wave":

Who is the team behind Silent Yachts?

Heike and Michael Kohler have sent almost their entire lives on a boat. After more than two decades of using various boats, cruisers, and sailboats on multiple oceans, they became dedicated to finding a better energy source for the propulsion of yachts. Between the years of 2005 and 2009, Heike and Michael tested a number of a multitude of various alternative energy sources. In 2009, SolarWave 46 was launched as a proof of concept for their design. While there are many boats and yachts built that use solar power in some fashion, the Solarwave 46 was the first ocean-going yacht to use solar energy to power everything on board from engines to appliances.

What else is different about how Silent Yachts are built?

Certainly the solar-powered engines and generators are the distinguishing characteristic, but there are a lot of other features that make each Silent Yacht unique. For example, the molds were created using a CNC-milling machine that is able to contruct particular shapes for an optimized design. The materials used in the hull include a carbon compositie that is then resin-infused for a light-weight, but very strong platform. Every hull is fully insulated and the long-term durability is exceptional thanks to the high-quality resin used in the infusion process.

What propulsion systems are recommended by Silent Yachts?

Silent Yachts recommends the 2 x 135 engines as the best solution. If the owner is making frequest trips from Point A to B (Say Miami to the Bahamas for example) the faster hybrid is recommended. The main differentiator here is cruising speed. If the owner is living on the yacht for an extended period of time, rarely pushes the engines to top speeds, and stays below 12 knots, then the E-Power is recommended.

When the generator is running, does the 100Kw go to charging the batteries (which run the 250 Kw e-Motors) or directly to the e-Motors?

All of the enery consumers and producers are connected to the bus bar. If there happens to be more power produced than consumed, the excess power goes to re-charge the batteries. If for some reason more power is required than what is produced, the needed power comes from the lithium batteries.

What is the sustained speed if both 100 Kw generators are running?

This answer really depends upon sea condition and the weight of the boat (for example components, additional equipment, water toys, etc.). The sustained speed on average though is between 12 and 14 knots, 10 knots with one generator running. It is possible to cruise at 10 knots without a generator running when using the Solar E-Power.

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Silent Yachts – Noiseless Limitless Cruising Catamarans

Solar power catamarans...ingenious and real.

Imagine leaving no footprint except those in the sand on faraway beaches as you silently cruise. With these solar catamarans, it’s possible! We covered these amazing solar-electric yachts back when they were mere concepts.

The Austrian-based solar catamaran producer drew stronger interest after the Silent 55 earned the Best of Boats Awards 2019 in “Boat for Travel” being “suitable for long distance travels with all amendments to live on board permanently, adapted for both inland waters and the tough conditions at sea.” Amazing results for where electric-solar catamarans were only a year or so before.

Silent Yachts began delivery of the Silent 55 in 2019 and in 2020, during a global pandemic, sold six Silent 80 catamarans (starting from $4.6 million). Construction in Ancona, Italy, was slightly delayed due to COVID19 closure of 2 of the 4 factories, but the shipbuilder continues with delivery of these amazing catamarans as well as their evolution. At the end of 2020, Silent Yachts had a dozen luxury electric catamarans in production from 55′ to 80′ at a starting price of $1.8 million.

After these successes, designer Marco Casali of Too-Design continued innovating crafting a Loft version of the Silent 80 to excite solar catamaran enthusiasts.

Founder and CEO, Michael Köhler, birthed the concept. Interior and exterior designs are by Marco Casali of Too-Design with Amedeo Migali of MICAD in charge of naval architecture.

The Silent 80 with its silent electric propulsion, has unlimited range; no noise or fumes. Seventy solar panels, electric motors, and lithium batteries (used by Tesla) have been incorporated into the design to make it most efficient while maintaining the overall balance in shape. If you want to know more in depth on this efficiency, read this excellent article on Silent Yachts’ engine, battery configuration, and power management .

All components are virtually free of maintenance which makes the running-costs much lower than that of a comparable conventionally powered catamaran. The Silent Yacht is powered by electric motors and has a cruising-speed of 6-8 knots, and maximum speed is 10 knots. Without an engine room, the Silent 80 has enough space for a 4.5 meter tender, and gyrocopter!

Success has not stopped this solar catamaran designer from striving for bigger and better ideas. Recently Silent Yachts Silent announced its plan to build catamarans in collaboration with Volkswagen, powered by VW electric drive matrix (MEB). The catamaran ranges will be designed by VW subsidiary, SEAT’s Cupra brand. Auto and marine manufacturers joining forces have shown success before when BMW teamed up with Torqeedo for outboard engines, so it will be interesting to watch.

High Cost of Solar Catamarans Debunked

As with any new paradigm, the skeptics have loud voices during early introduction of new concepts. And solar-electric catamarans are no different. As excited as we are about this, we must confess our healthy skepticism is still alive. But we recently read an interesting article that compares the Silent 80 to the Lagoon Seventy8 . It points out that because operation and maintenance costs are so low that only a few years of ownership negate the higher purchase price of the Silent 80.

It’s actually quite a tempting proposition to enjoy all the comforts and necessities that requires lots of power aboard without the smell, roar, and Earth-damaging emissions of diesel generators. And eliminating the dangers and inconvenient refills of the propane cooker in the galley is another reason to give a second and a third look at these new solar catamarans.

Read on for pictures and more details of these solar-powered cats with lots of options including hybrid diesel operations and and a true “sail” option.

Silent Yachts Solar Catarmarans in All Sizes

Silent-Yachts is producing the following models:

• Silent 55 – Specifications ,  Panoramic Tour
• Silent 60 – Specifications
• Silent 64 – Specifications  (discontinued)
• Silent 80 – Specifications ,   Panoramic Tour
• Silent 80 3-Deck – Specifications

CONTACT US FOR SPECIFICATIONS & PRICING

All models come with the following options:

• Cruiser – 2×30 kW – with top speed of 12-20 Kt
• E-Power – 2×250 kW – stronger dual e-motors than the “Cruiser” and more powerful battery banks for double the power and speed of the “Cruiser version”
• Hybrid Power – 2×220 HP + 2×14 kW – powerful diesel engines together with the electric motors achieve top speeds of 20+ knots
• Sailor – convenience of sails added to the Cruiser in the 55′ range
• Sky Sails – towing kite system with full automatic control for the 64′ and 80′ ranges which eliminates shade on solar panels by sails and frees up valuable deck space. 

Silent 55 Seatrial Reviews, Video, & Pictures

Read these Silent 55 catamaran reviews:

• Yachting World’s Silent 55 Review
• Power and Motor Yachts’ Silent 55 Review

Be sure to visit the links above for more images and info. Here is a video and a few photos of the elegant Silent 55.

Estelle Cockcroft

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SILENT 80 3-Deck: On board SILENT-YACHTS’ most spacious catamaran to date

The future of yachting is here, and it's silent, spacious and energy-saving. SILENT-YACHTS, leader in luxury solar-powered vessels, is set to launch its revolutionary solar-electric flagship – the SILENT 80 3-Deck. With an LOA of 24.3-meters, and the yard’s most voluminous catamaran to date, this cutting-edge yacht is slated to make its debut this year, bringing a new era of responsible yachting to the world's waters.

“What sets the 80 Series apart is that it combines incredibly high levels of luxury and sustainability like no yacht ever before,” says Michael Kohler, founder and CEO of SILENT-YACHTS. “With bespoke design by Marco Casali and 26 kWp produced by the state-of-the-art solar array, there is ample energy to enjoy all the luxurious amenities on board with zero emission.”

Open or closed: Taking customisation to the next level

With the SILENT 80 3-Deck, prospective owners can choose between the 80+-square-metre open or closed fly deck versions. Described as “the defining feature of the yacht” by Kohler, this allows the owner to tailor their onboard experience to their personal preferences.

The open version offers a sprawling 84-square-metre ocean sky lounge on the fly deck, for those who prefer being outdoors with a closer connection to the sea. For those who value privacy and panoramic views, the closed version provides two options. The first option boasts an owner's suite with a staggering 360-degree view and an expansive 41-square-metre private terrace aft. On the other hand, the lounge version is ideal for those who cherish shared experiences on board. It replaces the owner's suite with a generous 39-square-metre dining area, complete with a bar and galley, while maintaining the same aft terrace.

Maximised onboard space

When compared to other catamarans in this size bracket, the SILENT 80 3-Deck has a strategic approach to maximise onboard space without compromising comfort or aesthetics. The boat offers ample storage for water toys beneath the cockpit, enhancing the overall functionality and recreational opportunities of the vessel and making it a dream for watersports enthusiasts.

“In the aft portside hull, the staircase can be raised to reveal a fully enclosed tender garage with a lift and launching system,” Kohler adds. “It fits tenders with a maximum length of 5.2 metres and has a direct charging point to recharge electric SILENT tenders.”

Strategic design: Beauty meets efficiency

The SILENT 80 3-Deck's design is a seamless blend of aesthetics and functionality. The signature window strip running across each hull adds a touch of streamlined elegance to the yacht, a departure from the traditional bulky appearance of many catamarans. Esteemed interior and exterior designer Marco Casali deserves praise for his exceptional work in maximising solar panel coverage while maintaining an elegant and captivating shape. The result is a yacht that not only turns heads but also harnesses the power of the sun to propel you through the water with ease.

“The biggest challenge was to create a design that is visually appealing but also captures as much solar energy as possible,” Kohler explains. “As the solar array of course needs space, it still needs to integrate into the overall visual design language of a yacht in a beautiful manner.”

A solar-powered era of yachting

SILENT-YACHTS is at the forefront of ecological yachting, and the SILENT 80 3-Deck is a testament to its commitment to more sustainable solutions. With cruising speeds of 6-8 knots, the yacht's solar-powered energy system harnesses the sun's rays to generate silent, emission-free propulsion, offering unparalleled efficiency and a virtually maintenance-free experience.

Kohler highlights the importance of producing a yacht that is not only a pleasure to look at, but also very efficient. “All our yachts are required to be highly efficient in order to consume as little energy as possible while providing all the luxuries on board,” he says. “In order to achieve this favourable energy surplus, all onboard appliances need to be highly efficient, and the overall weight of the yacht must remain as low as possible to minimise the energy required for propulsion.”

The 25-year warranty on the solar panels underlines the shipyard's confidence in its green innovation and guarantees uninterrupted, eco-conscious cruising for years to come.

For more information on the SILENT 80 3-Deck, contact the team at SILENT-YACHTS today .

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This is Silent 80

Silent 80 leads the charge in yachting innovation. With a pioneering solar electric power system that allows both hotel load and cruising to be powered by the sun, she sets new standards in environmentally conscious cruising. Her whisper quiet, vibration free operation redefines tranquillity at sea, while her expansive living spaces defy all expectations of a 24m yacht, offering a range of options for relaxation and leisure. And, with only 12 months delivery time, the adventures are closer than you think.

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Silent 80 Through The Lens

Redefining Yachting Innovation

Space to Make Your Own

Encased by large windows, the open-plan living area connects guests to their surroundings and further enhances the feeling of space on board. Customise interiors, from soft furnishings to design choices, creating your home away from home on the water.

Deck Spaces

Thanks to her impressive space, the yacht offers a wide choice of exterior areas in which to relax, socialise or entertain. Spend lazy days on the main deck aft, with its ample seating and large dining space, soak up the sun on her foredeck, or head to the flybridge for awe-inspiring views.

Accommodation

Total Serenity

Cabin Arrangement

The tranquility of Silent 80’s cruising is matched only by the calming ambiance of her four spacious cabins. The generously sized principal cabin has a walk-in wardrobe and a large ensuite bathroom while the remaining guest cabins also feel spacious and inviting.

Performance

Elegance Meets Innovation

Solar Powered Cruising

Silent 80 is a full solar electric catamaran, with the ability to cruise and power hotel load using the power of the sun. Back-up generators are available to boost the battery bank when needed, ensuring smooth sailing with uninterrupted journeys.

Redefining Tranquility at Sea

Stay at one with nature, enjoying whisper-quiet, vibration-free operation and spacious, open plan living spaces that accommodate up to 8 guests to cruise in absolute comfort and tranquility.

Adventure Unleashed

Silent 80’s dual hull design makes her stable, agile and manoeuvrable, due to her engines being wider apart than a traditional monohull. Add this to her shallow draft, which allows her to cruise in the shallowest, most secluded bays and anchorages, and her capacity for adventure becomes unstoppable.

Efficiency Redefined

Silent 80’s two slim hulls are optimised for speed and efficiency, requiring less propulsion than a traditional monohull which, along with her solar-powered cruising ability, means minimal fuel costs. The yacht requires just two crew members, making her a smart purchase opportunity for anyone considering yacht ownership for the first time.

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Greener and Better: the Silent 60

• By Chris Caswell
• December 16, 2022

If there was any question that the “Tesla moment” has arrived in yachting, the Silent 60 clearly provides a positive response.

Consider, for a moment, crossing oceans in silence at 5 to 6 knots without consuming a drop of fuel and never needing to plan your course between fuel stops. Imagine sitting at anchor and running the air conditioning all night, not to mention all the galley appliances plus the washer-dryer, without the hum or fumes from a genset.

During my time aboard the Silent-Yachts 60, the electric yacht cruised easily at 8 knots. When I whipped out my sound meter, it barely registered 52 decibels, which is about the sound of a dishwasher. The Silent monitors at the helm showed we were charging our 286 kWh lithium batteries at more wattage than we were using to spin the 340 kW motors, so we were ahead of the power-usage game—and this was in South Florida rain under a solid cloud layer. Had we upped the ante to the yacht’s top speed of 20 knots, it would have been drawing from rather than adding to the batteries, but the speed capability gives skippers the option to outrun weather (or just get to the best moorings first).

The Silent 60 is a catamaran design for several reasons. First, the twin hulls are easily driven to minimize the power needed. Second, with nearly 30 feet of beam, there is enough deck area for the solar panels needed to create power.

Buyers can choose as many as six staterooms, each en suite with stall showers and nearly king-size berths. The salon also uses that beam well, providing bowling-alley space under 7-foot-6-inch headroom. With the Silent 60, the interior is basically a blank sheet, allowing buyers to tailor the layout to their cruising needs.

As for the engine rooms, NASA could take a page from Silent-Yachts: Everything is precisely labeled, placed for easy access and surgery-suite spotless. Externally, the Silent 60 is striking, with reversed bows and black graphic slashes on the topside that conceal dark-tinted windows (which provide bright, airy interiors to the staterooms). What catches the eye most, however, are the 42 solar panels that cover every inch of the cabin top as well as the hardtop over the flybridge. Produced by SunPower in California, these panels feed power to a lithium battery pack reportedly good for 3,000 charge cycles—or an estimated 35 years of normal boating use.

The Silent 60 I got aboard, which was Hull No. 3, had a four-stateroom layout. A larger stateroom forward in the starboard hull served as the master, with an athwartships berth, settee and built-in vanity. This yacht also had a walk-through Dutch door forward in the salon next to the helm, leading to settees on the foredeck as well as providing salon ventilation. Another benefit of the door for short-handed cruisers is quick access to the anchor gear under the foredeck.

Owners can sacrifice the forward door in favor of a forward master stateroom with a king berth just a couple of steps below the salon and an en suite head in the starboard hull. An intriguing design feature is the two outward-facing “window seats” indented into the stateroom on each side deck, which would make a wonderful spot at anchor with a good book.

The salon has a fixed dining table that easily seats eight people on the wraparound settee. There also are loose chairs and a pad just forward for lounging. The helm is raised one step and has twin Simrad multifunction displays plus the Silent systems monitor, all easily understood.

Aft and to port, the U-shaped galley has a dishwasher as well as a full-height fridge to starboard. The fridge setup may change to a pair of undercounter drawer fridges on future boats for easier access and to eliminate a blind spot for the skipper.

Abaft the galley, a window slides open for easy pass-through to the cockpit to serve whatever the cooks have prepared using the Hafele four-burner, two-zone cooktop.

The Silent 60 is a work in progress, and additional changes might be on the way, such as the addition of twin berths that slide together, and a different location for what is now the midsalon washer-dryer (in a console abaft the helm). This hull was built in Thailand, but production is moving to Italy.

Still, the yacht has exceedingly clever design ideas, such as the hinged hardtop on the bridge. The top lowers electrically to seal off the bridge from the weather as well as keep the solar cells from being shadowed. The bridge itself is conventional, with a double-wide helm seat to port that reverses to create wraparound seating for the dining table, and double lounge pads for relaxing, not sunning, since the solar panels take up every bit of sun space.

The cockpit has a settee and an L-shaped table. A hydraulic swim platform is available in varying widths to handle up to a 13-foot tender without impinging on the platforms on either hull. Silent-Yachts also gets points for good walk-around decks protected by toe kicks as well as welded stainless-steel rails.

The Silent 60 is on the leading edge of a greener yachting experience. For cruisers who are looking to lessen their carbon footprint while enjoying some quietude at sea, this yacht is worth serious consideration. 

Built for Safety

Future Silent 60s from Italy will have fully resin-infused fiberglass sandwich construction with carbon reinforcements in high-stress areas. Each of the hulls has watertight bulkheads, sealed floors and three collision compartments for enhanced safety. The foam sandwich core provides thermal and sound insulation.

Kite Sailing

One option available on the Silent 60 is a kite-wing propulsion system using a collapsing mast and hidden winch to fly a 140-square-foot sail. (By comparison, a Laser sail is 76 square feet.) With open ocean breezes of 17 to 21 knots, the builder says the kite can power the Silent 60 at 6 to 7 knots alone, or it can bump the speed with motors to go faster than the usual 8-knot cruise speed. 

Big Sisters

In addition to the Silent-Yachts 60, the boatbuilder has 62-, 80- and 120-foot electric power cats available for owners looking for something bigger. Additionally, it recently started work on the hybrid-powered Silent VisionF 82. 

Take the next step: silent-yachts.com

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SILENT Yachts

SILENT 55 – The award-winning solar yacht

In November 2019 the SILENT 55 won the “Best of Boats Award” in the “Best for Travel” category.

This special category is defined as “suitable for long-distance travel with all the amenities to live permanently on board, adapted to both inland waters and the harsh conditions at sea”.

In general, it can be handled easily by two people, which makes the SILENT 55 ideal for families who travel with or without additional crew.

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• Silent Yachts Silent 76

Search all our new or used Silent Yachts for sale. We have Silent Yachts brokers and sellers from around the world at great prices.

History of Silent Yachts

Silent Yachts, an innovative company known for pioneering the future of maritime navigation, was founded in 2005 by Michael and Heike Köhler in Austria. Michael, an avid lifelong sailor with a passion for sustainable energy sources, and Heike, a travel enthusiast and frequent voyage partner, sought a solution to issues of noise, smell, and fuel consumption that traditional sailing presented. Their belief that maritime travel could be both luxuriously comfortable and environmentally responsible led to the creation of Silent Yachts, a brand known globally today for their solar electric catamarans.Over the years, Silent Yachts has established itself as a frontrunner in the industry with multiple award-winning designs. Their game-changing approach to maritime travel utilises disruptive technology with cutting-edge naval architecture to produce vessels ranging from 55 feet to a recently launched 80 feet model. The company's boats are powered by solar energy, stored in batteries aboard, which makes their operations virtually silent, self-sufficient, and virtually maintenance-free, thus reinforcing their commitment to sustainability.Today, Silent Yachts is widely recognised globally with its headquarters still based in Austria, although their vessels are now built in Italy and Thailand, responding to the growing demand in those regions. Apart from these locales, Silent Yachts has extended its business footprint with sales offices in USA and Singapore and sales agents in over a dozen countries worldwide. The brand’s distinctive commitment to luxurious and sustainable maritime navigation continues to push boundaries, with plans to spearhead even more significant innovations in the future.

Which models do Silent Yachts produce?

Silent Yachts produce a range of boats including the Silent Yachts Silent 76 . For the full list of Silent Yachts models currently listed on TheYachtMarket.com, see the model list in the search options on this page.

What types of boats do Silent Yachts build?

Silent Yachts manufactures a range of different types of boats. The ones listed on TheYachtMarket include Sailing ship and Cruiser .

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StarTribune

Minneapolis music eatery icehouse will avoid eviction under new ownership plan.

Just three months after an eviction notice filled their Eat Street supper club with sour notes, the operators of Icehouse are singing an upbeat new tune.

A new ownership deal has saved the Minneapolis music haven from an eviction threat and sparked plans for a revitalization. Not all is new, though: Some of the principal players who helped make it one of the Twin Cities' best-loved live music venues are staying in place.

Icehouse's founder Brian Liebeck will still run day-to-day operations and remain a minority owner, and a well-known musician who's performed there often, jazz and rock drummer JT Bates, has signed on to help manage the music programming.

"We all want to see this club survive and this neighborhood thrive," said John Higgins, Icehouse's new majority owner and president.

Higgins and his wife, Amy Higgins, were already silent investors in Icehouse and helped it come out of the COVID-19 shutdown with a new sound system and other refurbishments. They agreed to take over as majority owners amid negotiations over unpaid rent with the landlords of the historic property, Chicago-based Northpond Partners.

According to the eviction lawsuit filed in April by Northpond — whose Minneapolis investments also include Seven Points, the Uptown mall formerly known as Calhoun Square — Icehouse's operators owed $118,000 in rent going back to July 2023. Liebeck said then , however, that he had a plan in place to bring the venue out from under the debt.

That plan was unveiled this week. Longtime associates of Liebeck, the Higginses enlisted the Icehouse operator's help when they took over and rebuilt the Portage, a popular old bar in Cable, Wis., near Hayward, where the Minneapolis couple own a lake home.

A biotech businessman who's also a Walker Art Center trustee, John Higgins said the unique challenges they faced at the Portage — the bar was gutted by a fire months into its reconstruction — made them well-prepared to take over Icehouse.

"These clubs are fun to be around, but the reality is that running them is a very serious and difficult business," Higgins said. "You have to love it."

He and his wife have long loved Icehouse, he said, and have ideas to help it thrive again. Among them: hosting more live music in the smaller, "more piano bar-like" side of the venue, Higgins said, rather than the main room with the big stage and balcony. He likened the vibe in that room to a popular, new, jazz-heavy bar in Minneapolis' North Loop district, Berlin.

They also hope to host more outdoor concerts on Icehouse's large patio, which became a popular site for music during the pandemic. And they intend to implement "a real, numbers-driven" plan to curate more diversity among the performers, Higgins said. The venue is at 2528 Nicollet Av. S., near the Whittier and Phillips neighborhoods

"The heart and soul of the club is something I'm keeping and staying on top of now," he said.

Asked separately whether he plans to stay aboard long term and is hopeful the venue's future is bright again, Liebeck said simply, "Yes and yes!"

Icehouse's new (and old) team members will celebrate the venue's revitalization at an Aug. 3 concert billed as the Rise Up Reggae Festival, featuring local mainstays the International Reggae All-Stars, Socaholix and Innocent.

The venue's live music offerings in the interim include a release party for the rock band Dilly Dally Alley on Thursday, a showcase with the Twin Cities Flamenco Collective on Sunday, a jazz residency series with the Minneapolis String Project on Monday and the return of Derecho Rhythm Section with Low's Alan Sparhawk on Aug. 1.

Chris Riemenschneider has been covering the Twin Cities music scene since 2001, long enough for Prince to shout him out during "Play That Funky Music (White Boy)." The St. Paul native authored the book "First Avenue: Minnesota's Mainroom" and previously worked as a music critic at the Austin American-Statesman in Texas.

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© 2024 StarTribune. All rights reserved.

Here you can find the answers to all of the most frequently asked questions about Silent Yachts. If you have additional questions, our team will be happy to advise you.

01. What is the price of a Silent yacht?

For more information about the prices of our Silent yacht models, please get in touch here: Contact

02. Can a Silent yacht cross the Atlantic?

All our yachts are CE-A certified, which means that they are suitable for ocean crossings. In 2018, the Silent 64 set a world record as the first serial production solar powered electric yacht to cross the Atlantic Ocean.

03. Are electrical yachts practical?

Yes. As the propulsion system of an electrical yacht has fewer components and is much smaller than a conventional drivetrain, there is an additional amount of space on board which can be used for a variety of purposes.

04. Are electric yachts quiet?

Silent yachts are quiet, as the electric motors are noiseless. However, some manufacturers make use gearboxes which could be relatively noisy.

05. Are electric yachts cheaper?

While the purchasing price of electric yachts is similar to the price of conventionally powered yachts, the ownership costs are far lower. This is a result of lower maintenance due to the lack of moving parts of a normal engine, less repairs bills and minimal to no expenses for fuel.

06. Can you buy a Silent yacht?

Yes, Silent Yachts offers full serial production solar powered electric yachts ranging from 60 to 120 feet.

07. Is there any electric yacht?

Silent Yachts are the first ocean-going electric production yachts in the world, which are powered by solar energy. Storing the energy of the sun in state of the art battery banks enables guests on board to be fully solar sustainable while having the possibility of unlimited range with zero emission.

08. Do you offer sustainable materials on board?

Yes, we do. You have a choice to choose between premium sustainable materials such as bamboo, flax fibre, basalt fibre and cork. They help shape a unique yachting experience while significantly reducing the overall footprint on the environment. For more details, please visit our dedicated sustainability chapter.

09. What is the meaning of the number in each of the Silent Yachts model names?

The number of each model (Silent 60, Silent 62, Silent 80, Silent 120) indicates the overall length of the yacht in feet.

10. Which boating licence do I need?

Silent yachts require the same motorboat license as any other boat of the same length in the same operational area. No specific license required.

11. What about the CE-A Certification? What does it mean for the buyer?

All boats available on the market are classified according to four different CE categories.

Category A – Ocean: This is the certification level with the toughest standards and covers vessels of 40’ and over which are designed to be self-sufficient for extended voyages. It is defined as the “category of boats considered suitable for seas with significant wave heights of up to 23 feet (7 meters) and winds of Beaufort force 9 (41-47 knots) or less, but excluding abnormal conditions such as hurricanes.”

Category B – Offshore: Boats operating offshore with winds to 40 knots and significant seas to 13 feet.

Category C – Inshore: Boats operating in coastal waters and large bays and lakes with winds to force 6, up to 27 knots, and significant seas 7 feet high.

Category D – Inland or sheltered coastal waters: boats in small lakes and rivers with winds to force 4 and significant wave heights to 18 inches.

All our yachts are CE-A certified, which is the highest level of certification obtainable in Europe. As a result, all Silent Yachts are true ocean cruisers designed to circumnavigate the world.

12. What are advanced sea trials?

The goal of advanced sea trials is to experience solar powered yachting first-hand and receive a personal introduction to understand the technology and its benefits in order to be able to make an informed purchase decision.

If you would like to come on board and do an advanced sea trial, please get in touch here: Contact

13. How much does it cost to operate a solar powered yacht?

The operational costs of a solar powered yacht are far lower in comparison to regular diesel-powered motor yachts. The main reason here fore is the fact that an electric motor only has one moving part in comparison to the hundreds of moving components of an internal combustion engine. Virtually no maintenance means virtually no maintenance costs. Secondly, refueling the conventional yacht with diesel makes up for a significant proportion of the operational costs. Recharging a Silent with the help of the sun however is free.

14. Are there different cabin configurations for each Silent yacht model?

Yes, every model in our range offers a variety of different cabin configurations to suit different needs. On our website you can find the standard cabin configuration of each model. If you would like to take a look at further cabin configurations, please get in touch with our team and they will provide you with the respective model brochures which showcase all options.

15. What are the main advantages of a solar powered Silent yacht?

In terms of the actual yachting experience, Silent yachts offer virtually unlimited range with zero emission. Furthermore, noiseless cruising makes sure you will have relaxing time on board.

The solar-electric drivetrain is not only the safest and most reliable marine propulsion system, in comparison to regular internal combustion engines there is virtually no maintenance required as well.

From an operations point of view, there are 8 years of warranty on the battery banks, 40 years on the solar panels and life-time warranty on the electric motors. Every Silent yacht is CE-A certified and therefore offers full trans-ocean crossing capabilities.

For more information, check out “Why Solar Power?” and “Why Silent Technology?”

16. What is the difference between a solar powered electric Silent yacht and a conventional powered yacht?

Conventional motor yachts are powered by diesel- or gas-engines. Additionally, they have one or even two generators on board to supply all household appliances. Hence, depending on the size of the yacht, a total number of 3 or 4 diesel engines are used to provide propulsion and feed the household devices with energy.

Sailing yachts need a diesel-engine too. Depending on the operational area as well as the wind- and weather-conditions, a diesel engine is required in addition to the sails for the propulsion of the boat. When anchoring in a quiet bay, the diesel generators ensure the energy-supply of the household appliances on board. In fact sailing vessels have a very similar engine setup as a motor yacht, just less powerful, therefore a sailing catamaran of 80 feed has always 2 diesel engines for the propulsion and 2 diesel generators. Compared to that an electric Silent yacht requires only one diesel generator, which reduces the required maintenance and the costs significantly.

As most yachts use gas for cooking, the open flame not only heats up the interior but also causes an imminent threat. Furthermore, on many yachts the consumables like water and energy are managed in a way that enforces the skipper to visit a marina every two or three days to charge the batteries and to buy water for showering and drinking. In contrast to that a Silent yacht is autonomous and self-sufficient. Therefore there is need to go to a marina on a regular basis, as a Silent produces the energy and the water it needs on its own with solar energy.

Lastly, a conventionally powered boat has a range of 300 to 500 nautical miles before needing to refill the diesel engine. The use of a combustion-engine is, of course, inevitably also combined with noise, exhausts and oily films in the water.

In comparison, a Silent yacht can cross oceans and stay in a bay for months by storing the energy generated through the solar panels in large capacity batteries. This electrical energy is used for propulsion and well as powering all household appliances on board. All this happens completely noiseless, without vibrations and pollution while also offering the possibility of having virtually unlimited range.

01. How big of an electric motor do I need for my solar powered yacht?

The smallest electric motors fitted to a Silent yacht are two 50 kW motors on the cruiser configuration of the Silent 60 series.

02. How do electric yachts get fresh water?

All Silent Yachts are equipped with a water maker, which processes sea water into fresh water.

03. Can you power a yacht with an electric motor?

All Silent Yachts are powered by electric motors. The instantly available torque ensures a smooth drive at any time. More information on our electric propulsion system can be found on our technology page .

04. How long does an electric yacht motor last?

As electric motors only have one moving part, they are very reliable in comparison to regular internal combustion engines, which have a larger number of moving parts. Therefore, at Silent Yachts we offer a lifetime warranty on all electric motors installed in our yachts.

05. What motors do Silent yachts use?

Silent yachts engineers design and configurate our proprietary in-house drivetrains. We only integrate components from leading producers in their respective industries. For more information about the solar-electric drivetrain , please visit “Why Silent Technology” .

06. Do electric yachts have generators?

All Silent yachts are equipped with back-up range extenders, which can recharge the battery banks whenever needed. More information can be found on our “Why Solar Power?” page.

07. How efficient are electric yachts?

As Silent yachts were created to be fully electric from the ground-up, they are highly efficient. Every aspect of our yachts, from the design of the hull to the interior and its appliances is designed to minimize energy consumption and maximize efficiency. This enables sustainable self-propulsion with virtually unlimited range. More information can be found here “Why Silent Technology?” .

08. Where do our yachts get electricity from?

The main source of energy of our yachts is the sun. In a typical holiday region during the typical holiday season on an average sunny day the solar panels produce enough energy to power the propulsion system as well as all household and navigational appliances on board for regular holiday use. To learn more about the solar technology powering our yachts, please visit our dedicated chapter here  “Why Solar Power?” .

09. How fast can a Silent yacht go?

The cruising speed is usually around 6 – 8 kn.

10. Why are there no wind generators?

During the testing phase of the Solarwave 46 Prototype, Michael & Heike gathered extensive experiences with the usage of wind generators as well. The energy they generate does not compensate for the energy loss they produce by throwing shade on the panels. When turning at high speeds, wind generators are also very noisy and do not create a Silent cruising experience. Depending on their placement, they are also quite dangerous, potentially creating serious safety hazards.

It is not surprising that not even sailors on sailing boats choose the windiest regions of this planet for their holiday. They prefer to stay in a calm a protected bay for swimming and even more to stay over-night. Calm and protected means no wind and therefore no energy coming from the wind generator. However, the shade created by the wind generators would affect the solar panels on every sunny day and as a result reduce the daily production.

11. Can the generator charge depleted batteries and power the ship including all the appliances on board while the boat is underway?

Yes. The generator can recharge the battery whenever necessary. However, it is generally not required to start the generator for the operation of any of the household appliances on board. It is also not required to start the generator for higher cruising speeds. It merely functions as a back-up in case you travel longer distances at high cruising speeds.

12. What about adding a regular sail or kite sail?

As regular sails would throw a lot of shade on the panels, which would lead to a significant decrease in energy, all our models are available with an optional kite sail system instead.

In comparison to a regular sail, the fully automatic towing kite has several advantages:

• No shade created on the panels • Up to 10x more towing power created per m2 • Less maintenance required • Lower maintenance costs

For all sailors who would love to make use of the wind as well, the kite sail system perfectly complements the trademark Silent Yachts solar electric drivetrain as an effective addition.

13. Is there a video showcasing the energy generation & consumption of your electric yachts in realistic scenarios?

Yes, you can check out our Silent 80 energy generation & consumption video here .

The storyline takes you along on a trip of two days in order to showcase a variety of realistic scenarios, based on the Silent 80 E-Power + version. It will show you exactly how different situations affect the production and overall energy management with the help of the solar panels, electric motors and lithium battery banks on board.

14. Which propulsion system do Silent yachts offer?

All our models are powered by our unique solar electric drivetrain. It consists of market leading solar panels, powerful electric motors, state-of-the-art lithium batteries and an efficient back-up generator. This system produces enough power in order to supply energy for propulsion as well as all onboard appliances. For more details, please visit “Why Solar Power?” .

15. How many kW do the solar panels generate?

The amount of power generated by the solar panels in total depends on the specific model. Here are the individual peak power figures and the daily production of each Silent yacht:

Silent 60 & Silent 62 3-Deck

• 16 kWp – about 100 kWh per day

Silent 80 & Silent 80 3-Deck

• 26 kWp – about 150 kWh per day
• 40 kWp – about 240 kWh per day

Important to note – the kWp does not tell you anything about the daily production. When the panels are mounted in an unfavourable angle to the sun – for instance on the sides of the hulls – they are shaded for most of the time of the day. Same applies if they are mounted on a roof with a mast and a boom placed on top of it. Or if they are configured in smaller areas of different size and different angle to the sun. In all these cases their production will be close to zero. It is not surprising that yachts of same size having panels on the hull sides harvest only a third of the energy which you get on a Silent.

The design of our solar roof and our arrangement of the panels are the secrets of the “Silent Autonomy”, which makes our Silent yachts so unique.

16. Which company builds the electric propulsion system?

The electric propulsion system is built in-house by using highest quality industrial grade products. Our specific configuration of every individual component makes the resulting system unique.

01. Can Silent Yachts be used for commercial use such as passenger ferries?

While commercial uses are not part of our regular model range, we have already customized our solar powered yachts for such situations in the past. The Silent 55 has been built as a passenger ferry. Therefore, we would kindly ask you to get in touch with us in order to evaluate potential commercial usage regarding your specific needs.