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.

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Electric boats

Silent yachts, silent yachts launches solar catamaran with kite wing sail and 100 mile daily range from the sun.

Solar boat engineer and designer Silent Yachts has shared new details of the SILENT-60, a 60′ catamaran with 42 solar panels and two electric propelled motors backed by 286 kWh of battery capacity. While Silent Yachts’ solar-powered vessels are all unique, the SILENT-60 will also be fitted with a 9-13 square meter kite wing, generating additional clean power to pull the yacht.

Silent Yachts was founded by Heike and Michael Köhle, who together have sailed over 75,000 nautical miles around the world, and decided there had to be a better way to propel yachts with clean energy.

After beginning research into solar yacht technologies in 2004, Silent Yachts gathered five years of sailing data and constructed its first fully self-sufficient solar-powered catamaran , the Solarwave 46.

After a five-year trial at sea that began in 2010, Silent Yachts had a proven solar yacht concept, and began serial production of luxury sustainable vessels in 2016 with the SILENT-64. By 2018, The SILENT-64 had become the first serial-production solar-powered bluewater catamaran to cross the Atlantic, from Cartagena, Spain to Barbados in 16 days.

In 2020, the company announced a partnership with Volkswagen Group , which will supply all the components and batteries for a new 50-foot yacht. The yacht will be designed with the help of Cupra, and will utilize VW’s MEB Platform.

Earlier this year, Silent Yachts launched the SILENT-60 as a more powerful, revamped generation of the SILENT-64. With the company’s latest announcement, the SILENT-60 catamaran looks to separate itself from other solar yachts by utilizing even more sustainable propulsion techniques.

The SILENT-60 solar yacht specs

In addition to being a yacht completely powered using solar energy, Silent Yachts has now shared an additional kite wing option that can deliver even more clean range to the Silent-60.

According to the press release, the SILENT-60 will be the first vessel to be fitted with a nine or 13 square meter kite wing, although the option will now be available on all Silent Yacht models.

After deploying the compact kite, it drifts away on the surface of the water before pulling taught and launching into the air. When it reaches its optimal flight height, the kite begins to trace a “figure 8” in the sky, generating additional power to pull the solar yacht. Silent Yacht founder Michael Köhler elaborates:

The main advantages of a kite over a conventional sail system are that it does not throw shade on the solar panels, does not need a tall mast, and generates up to 10 times more power per square meter than a traditional sail. In addition to that it saves about 1.5 tons of weight compared to conventional rig and costs much less. It makes even more sense for the SILENT boats that run on renewable solar energy because the power generated by a kite easily exceeds the energy consumption of the system, so you can charge the batteries while cruising under kite power. And besides that, it’s great fun!

When yacht owners want to stop kiting, an automated app controls the kite, moving it to a position right above the boat where it has the least pull on the line. This allows for more easy electric winching down over the foredeck for stowage.

In addition to the wind kite option, the SILENT-60 yacht comes with 42 solar panels, garnering 17 kWp of energy from the sun to power two, 340 kW electric motors. The system is backed by a battery capacity up to 286 kWh.

As a required safety measure, the SILENT-60 is equipped with a generator and 1,000 liters of fuel. However, according to the Silent-Yachts’ owners, they almost never use it because they have enough solar power and electric energy.

According to Silent Yachts, the SILENT-60 can cruise efficiently with zero emissions using solar power only for up to 100 nautical miles a day and can maintain that pace for weeks. The vessel’s cruise speed is six to eight knots, but it can get up to a top speed of 20 knots using the all-electric motors.

The SILENT-60 comes with four guest cabins but can be designed with a custom layout for those willing to pay a bit more. Speaking of which, the SILENT-60 starts at 2.39 million euros ($2.69 million).

The first of these SILENT-60 solar yachts was built in Thailand, but the company plans to build future units in Italy. Furthermore, Silent Yachts has already shared design plans for a SILENT-80 and SILENT-100 Explorer vessel.

More electrified boats are sure to make their maiden voyage soon. In the meantime, check out this launch video detailing the style and luxury of the SILENT-60:

Electrek’s take

The more I see electric propulsion on larger and larger boats, the more excited I get. While this is still such a niche segment in not just maritime transportation, but electrified mobility overall, it really excites me personally.

Many of you (hopefully) saw my previous article where I got to captain a solar-powered yacht called the Ramblin’ Rose, thanks to Sunwater Marine . That experience helped me learn and experience a lot of similar technology that Silent Yachts has implemented on an even larger and more powerful scale with its catamarans.

While it’s safe to say that my current income level might get me on board a SILENT-60 solar yacht as a mere stowaway, those who can afford their own are going to be blessed with luxury and performance with zero emissions. The quicker we stop burning diesel in our Earth’s waters (and anywhere else while we’re at it), the better.

A top speed 20 knots is nearly 23 mph, not bad for two electric motors getting all their energy from the sun. Obviously, that speed is not sustainable for the batteries, but being able to get 100 NMs from the sun each day truly means you can take this yacht out for weeks at a time if you want. Not to mention the unique wing kite that actually pulls the 60-foot yacht, unlike a sailboat that is pushed by the wind. No range anxiety here.

I’d love to get below deck on one of the Silent Yachts and explore the inner workings… while getting a tan in the Mediterranean, perhaps? A kid could dream, right? For now, I’ll simply have to report electric boat news from my squeaky chair, pretending the cars whizzing by outside are calm ocean waves lapping against the yacht’s hull. Is it too early for a mojito?

FTC: We use income earning auto affiliate links. More.

Scooter Doll is a writer, designer and tech enthusiast born in Chicago and based on the West Coast. When he’s not offering the latest tech how tos or insights, he’s probably watching Chicago sports. Please send any tips or suggestions, or dog photos to him at [email protected]

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Silent Yachts 55: Liveaboard test of this future-proof electric catamaran

• Photos: Jack Haines / Silent Yachts

With there being no engine noise the skipper could make an early start without disturbing charter guests

The crew meet up with another Silent 55 on charter in Mallorca

• Silent Yachts CEO and Tinker head ashore on the tender

The solar array is most effective with the hardtop retracted so it doesn’t shade the other panels

• The 27ft 7in beam gives the 55 excellent natural stability when at rest or on anchor
• You only need to head into port to replenish food stocks – the rest takes care of itself

Returning to the Silent 55 after an evening walk ashore

Breakfast at anchor is the norm when shore power isn’t an issue

• The heart of the boat is a brilliantly sociable space
• The American-style domestic fridge/freezer in the galley

The internal dinette is the team’s workspace during the summer months

• Familiar controls mean the Silent 55 feels no different to helm than a “normal” boat
• The master suite is a great cabin but it needs blinds or curtains
• The VIP ensuite runs most of the length of the starboard hull and it’s a real gem

This spectacular Mallorcan sunset marks a suitable end to a day of silent cruising

• The energy harnessed from the solar panels is stored in a 210kWh battery bank
• The compact electric motors reside beneath the floor
• The digital management system displays power usage and battery life
• Top stories

An extended stay on board the revolutionary Silent Yachts 55 allows us to assess whether this really is the future of the motorboat

The April 2019 edition of MBY – our Future of Boating special – included a boat test of the Silent Yachts 55 in, shall we say, less than ideal conditions. Given that the boat is a solar-powered power catamaran the sheeting rain that we endured during our short sea trial somewhat hindered the boat’s ability to show us what it could do.

At the time I lamented the weather and commented that to assess properly whether the Silent 55 is a viable cruising machine we’d need more time on board to test its technology in realistic conditions and, ideally, somewhere sunny. Luckily, Silent Yachts agreed so in July we headed out to Mallorca to live aboard the boat for three days to see if it works.

Our meeting point is Santa Ponsa in Mallorca’s south west, not the most salubrious of locations, but the bay, with shelter from the prevailing winds and excellent holding, is where the Silent Yachts team base themselves for the summer months.

It says much about the liveaboard potential of this boat that Silent Yachts’ CEO Michael Köhler and his wife Heike run the business from the Silent 55 during the season and are regularly joined by members of their team and potential clients so that they can experience the boat for themselves.

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A sailor at heart, Michael is not a man who likes to be tied to marinas (they spent one night in port last season) so this tranquil anchorage is ideal. We are met on the quayside by the tender (powered by a Torqeedo electric outboard , naturally) and whisked silently towards the transom of the awaiting Silent 55 where we are welcomed by the Köhler’s Australian sheepdog, Tinker, and meet the other crew members Euan and Christian, who both work for the shipyard.

Every berth on board is occupied, meaning the boat’s living spaces and the technology used to keep the creature comforts running smoothly are going to be thoroughly tested.

Article continues below…

VIDEO: Silent Yachts 55 review

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Our hosts graciously offer me and my wife our pick of the cabins but they usher us towards the master suite and after some token protestations, we cave and head forward to stow our bags. The master on this four-cabin version (there are five- or six-cabin options available) is a beauty that straddles the hulls and has a vast ensuite that occupies the forward portion of the starboard hull.

The bed is huge, there’s more storage space than you can shake a stick at and the separate toilet, shower cubicle and open-plan basin are particularly luxurious touches. The lack of curtains or blinds over any of the numerous windows catches my eye, however, as this odd omission was also noted on the boat I originally tested back in April.

The boat we’re on is the E-Power version; there is a Cruiser with smaller electric motors and a Hybrid , which mates two 14kW electric motors to a pair of 220hp diesel engines. Our boat has two 250kW (the equivalent of 335hp each) electric motors, an array of 30 solar panels on the roof with a maximum output of 10kW and a 210kWh battery bank.

This neatly interlinked system is tasked with propelling the boat up to a top speed of 18 knots and running its domestic supply, which on top of the usual lighting and sockets includes an American-style domestic fridge/freezer, air-conditioning and a water maker. There is some internal combustion going on, though, because there is a 100kW generator on board, employed as a range extender or charging aid if there is nothing but liquid sunshine in the air.

It’s a beautiful late afternoon so we haul the anchor and creep, in total silence, past our neighbouring boats for a shakedown around the headland. Much of the driving experience is the same as a boat with engines: you turn a key to activate the drivetrain and, though there is no gearbox, the throttles still have neutral, forward and reverse settings – more for their familiarity than anything else.

And it is totally silent; the gearbox whine of the boat I tested earlier this year now eradicated, all you can hear is the gentle swish of water folding around the bathing platform.

Though our boat has twin 250kW motors it’s only got 70kW of power per side because it is still in the final stages of manufacturer testing, which is a shame. That said, even with the full 500kW on tap, you’re still going to run the boat most economically at 6 knots.

Even an increase of speed to 10 knots could decrease running time by two hours or more, so it pays to stick in the slow lane – no hardship on a power cat of such dimensions and inherent stability with a litany of places to chill out in as the boat glides towards its destination.

We found ourselves gravitating towards the padded nets on the foredeck where you can sit with the sun on your face and breeze in your hair, gently bobbing up and down with the motion of the swell. The nets, your proximity to the water and the hushed progress engender a unique connection to the sea beneath you that is really rather special.

Though we have over 50% charge in the batteries Michael fires up the generator on the way back to base to top them up a touch; doing this while running is the best time because you barely notice the noise of the generator on the move.

We awake early the next morning as bright sunshine cascades through the windows of our cabin. Every other cabin on board is fitted with blinds, but the splendour of our huge master suite is dampened a touch by the lack of them in here. The windows are at least heavily tinted so we can get changed safe in the knowledge that we can’t be seen by the crew on deck.

These quibbles evaporate as we head to the main deck for breakfast, which is laid out invitingly on the sprawling cockpit table. This is the heart of the boat, an area where the cockpit and galley merge and one where the crew naturally congregates. The weather is beautiful so we plan a longer cruise to an anchorage a few miles east near Puerto Portals.

With the sun beating down already we depart our base with 65% charge in the batteries, pick up the 6-knot cruising speed and settle in for the ride. To get the best out of this boat you have to think like a sailor when passage planning, manipulating the elements as best you can so that they are helping and not hindering progress.

Tidal flow or current and wind direction all have an impact on range so it pays to have nature’s forces on your side. If high-speed blasts between islands is your thing then this boat isn’t going to work for you, but if time is your friend then the Silent 55 makes a lot of sense. Consider this too, if it’s autonomy you’re after then the 55 is in a league of its own. You only need to head in to port to top up with water (if you don’t have the water maker) and replenish food stocks.

With a 600-litre diesel capacity the generator’s tank will not need regular fills and there are no mechanicals to service apart from the generator itself so you need to carry very few spare components. You don’t depend on shore power either so if you genuinely want to live on board and get away from the crowded surroundings of a marina this boat delivers that.

The powercat frame is ideal for this usage too, given the sheer amount of living space. Where you’d normally find a pair of big engines are two enormous storage voids because the compact electric motors live beneath the floor in the aft cabins. Its twin hulls and 27ft 7in (8.46m) beam endow it with inherent stability, too, creating what feels like your own little island and a tremendous base from which to enjoy the piercing blue water of a Mallorcan cove .

She’s electric

Our 10nm mile journey on electric power took around two hours and during that trip the charge diminished from 65% to 48% (giving a theoretical range of 59 miles on a full charge). Once the anchor hits the seabed we use just 2kW of power running the domestic supply, though there is a spike when we turn on the air-conditioning to cool the cabins down before bed.

There is sufficient energy to run the air-con without turning the generator on, but with a stiff breeze blowing through the boat a quick blast is all we need for a comfortable night’s sleep. As the day boats make a dash for home at dusk, the bay becomes our own and after a refreshing dip we shower and change before the teppanyaki grill is set up on the cockpit table and we prepare to enjoy a beautiful dinner as the sun melts into the horizon.

The next day we have to return to Santa Ponsa so it’s up early for a glorious morning dip to shake off the previous evening’s digestif. The pace of life mirrors the pace of boat, but we decide to have breakfast on the move so we can get back to base before it gets too busy.

With there being no engine noise or vibration the skipper could easily make an early start without disturbing charter guests, something you would struggle to achieve on even the most well-insulated diesel boats.

Maybe it was the Mallorcan sun or a case of being caught in the moment but as we cruised silently west and I took to the cosy perch on the Silent 55’s port side deck I couldn’t help thinking what hard work it looked as other boats charged about with their bows in the air and guests glued to their seats. We pull up in Santa Ponsa with a healthy 37% of charge remaining in the batteries.

Our verdict

The Silent 55 is not perfect and you can see and feel the yard’s immaturity in the rudimentary finishing in places. I also have an issue with the terrible view from the lower helm, even though you spend most of your time helming from the flybridge. Nor is the Silent 55 a handsome craft; designs for the 80 and 60ft versions show a far more attractive look with much neater proportions and a tidier window line.

In early September, though, I receive a video from Michael via WhatsApp. It’s of him standing on one of the bathing platforms as the Silent 55 charges through the water at 17 knots on electric power. The testing phase, it seems, is complete and all 500kw can be laid down at once; it’s quite a sight to see the boat travelling at such speed with no engine noise whatsoever. The boat may still need some of its rough edges smoothing off but the technology works and sets an important motorboating milestone.

Price as reviewed:

£1,730,000.00 (ex. VAT)

Price from : €1,400,000 ex VAT LOA : 54ft 8in (16.7m) Beam: 27ft 7in (8.46m) Draught : 2ft 1in (0.64m) Displacement : 19 tonnes (light) Fuel capacity : 600 litres (132 gal) Water capacity : 500 litres (110 gal) RCD category: A for 12 people Design: Michael Köhler & iYacht

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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 Dream was made for those with a true passion for the sea – not only is she completely eco- friendly, she also comes with the ultimate outdoor decks for admiring the beauty of Sardinia, where she will be berthed in 2024. The aesthetics of this magnificent catamaran will win over the most discerning charterers – her spacious cabins available for 6 guests, inviting salon, and outdoor decks are sleek and modern, while oozing an inviting atmosphere and enjoying the vacation on board.

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Discover the inner workings of the world’s premier ocean-going, solar-powered production yachts.

Solar-pioneers Heike und Michael Köhler have travelled the oceans on conventional motorboats and sailboats for 40 years.

Our shipyard combines experienced craftmanship with cutting-edge innovation to produce the finest solar-electric yachts.

As Silent we introduced a new e-ra of yachting with the help of our solar powered electric luxury catamarans. Visit our careers section to join our team.

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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.

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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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Power Catamaran Popularity Rising

• By Victor Tan
• March 18, 2024

Aromas from sizzling steak, local lobster and freshly caught mahi mahi wafted through the air as an inflatable Santa ballooned on the flybridge of Mark and Janeen Traylor’s Horizon Power Catamarans 52 . The Georgia-based couple was in Marsh Harbour, Bahamas, preparing for one of their most memorable family Christmas dinners.

Coker and Cathy Price of South Carolina also had what they described as their “best family vacation ever” aboard a catamaran—an Aquila 48 they chartered in the British Virgin Islands.

These are just two examples of boaters who have joined the shift toward catamarans in the past decade or so. While a catamaran or two used to be an anomaly at a marina, an increasing number of boaters are embracing the volume and efficiencies that catamarans offer. Marinas along the US East Coast are now building docks with transient catamaran cruisers in mind, and some charter companies now focus on cats because an increasing number of customers prefer them.

The Traylors made the transition from 35- and 60-foot monohulls to a 53-foot Horizon power cat. The Prices owned several catamarans smaller than 30 feet long before buying an Aquila 36 , christened Nauti Cat after Cathy.

“If you’re at anchorage, it’s much more stable. If you’re on a monohull, it just doesn’t take much at all to tip it from side to side,” Mark says. “It’s very family-friendly. As far as the amount of space that you get on it and having people be able to move around the boat and not feel like you’re right on top of each other, comparing it to a monohull, there’s just not much of a comparison at all.”

Coker also says there’s no comparison: “I don’t know why they even make monohulls anymore.”

Catamaran builders are seeing substantial increases in customer demand. Darren Henn, VisionF Yachts and Silent-Yachts sales broker for the United States, says that before the pandemic, Silent-Yachts sold four or five vessels a year. Since 2020, the builder has sold 15 or 16 hulls a year at an average price of $3.8 million to $7.6 million, he says.

Prestige Yachts, which launched its M-Line of catamarans with the debut of the M48 at the 2022 Cannes Yachting Festival, has sold more than 20 of the hulls and recently launched a new flagship for the line, the 65-foot M8.

The Silent VisionF 82 , which made its global debut at the 2023 Fort Lauderdale International Boat Show, has a 32-foot-6-inch beam with an open-layout flybridge that, alone, could comfortably host upward of 20 guests. The 581-square-foot salon is dedicated entirely to socializing.

“I think it comes back down to usable space on the boats,” Henn says. “People want to be able to host parties. They want to be able to have friends. If you’re on any other vessel of similar size, you’re going to be able to put a fraction [of the] amount of those people. Once you see the bow of this vessel, you’re going to be like, ‘Man, you can put 100 people up in the front.’”

Other boatbuilders are designing catamarans to appeal to even more styles of boating. Aquila’s 47 Molokai , for instance, is a center-console sport-fisherman that can reportedly top out at around 62 knots and cruise at about 42 knots. It also has a cabin belowdecks for a couple to use on a long weekend. The wide-open, performance-centric design is much different from the first cats that came onto the market years ago.

“Traditionally, catamarans are boxes on the water, rectangles on the water,” says Alain Raas, Aquila brand manager for MarineMax. “You’re starting to see the more sporty look, the swept lines. And then you’re also getting up in speed now. All of our models, we’re really focused on semiplaning or planing hulls. We’re not just focused on going slow. We want to have the option to go fast for our clients.”

Another factor driving catamaran popularity is charter bookings. The Moorings now offers close to a dozen power and sail catamarans as part of its charter fleet. MarineMax Vacations specializes in power cats, and Regency Yacht Charters says it’s seeing broad demand for even bigger cats, such as the Sunreef 80.

Some of those charter clients, like the Price family, go on to buy power catamarans. They took delivery of Nauti Cat in January 2023. Its stability makes for an easy cruise from South Carolina to the Bahamas, they say, and its 2-foot draft allows for shallow-water approaches with family and friends aboard near Edisto Beach, South Carolina.

The Traylors say they’re not going back to monohulls. As of this writing, they were preparing for their first Abacos season aboard a new Horizon PC60 .

“The catamaran charter market is just exploding,” says Bob Denison, president of Denison Yachting. “We’re going to continue to see the growth in the catamaran segment of the market take off, and it’s never going to be a trend. This thing is here to stay. I think in 50 years, catamarans are going to be just as common as monohulls.”

• More: aquila , Catamarans , Horizon Power Catamarans , January 2024 , Prestige Yachts , Silent-Yachts , Yachts
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15 Extraordinary Superyachts Setting Sail In 2024

Posted: March 19, 2024 | Last updated: March 19, 2024

Breathtaking dream boats launching this year

Ready to discover the ultimate in nautical eye candy?

With the largest-ever superyacht poised to grace the high seas – and several other spectacular launches on the horizon – 2024 is tipped to be a truly unforgettable year for fans of floating palaces.

Click or scroll through to jump aboard the most hotly anticipated superyachts scheduled for delivery this year, from state-of-the-art explorers to a record-breaking model that's expected to cost a staggering $600 million. 

All dollar amounts in US dollars.

Custom YS 75 Hybrid: Cost unknown

Ushering in a new generation of high-end eco explorers, this expedition vessel from Damen Yachting in the Netherlands boasts a hybrid propulsion system for zero-emission cruising. For the uninitiated, a hybrid propulsion system uses two or more forms of propulsion, such as a biofuel or diesel engine combined with an electric machine.

As buyers become increasingly aware of environmental concerns, naval architects and yachtbuilders are devising green-leaning vessels that don't compromise on style, luxury, or performance. Damen is among the firms leading the way.

Designed by innovative London studio Michael Leach Design and engineered in-house, the 247-foot Custom YS 75 Hybrid has cutting-edge features, including a touch-and-go helipad and a crane for deploying tenders.

It can accommodate 24 crew members and up to 12 guests across six staterooms and boasts plush entertaining areas.

Due to launch early this year, the innovative vessel will also be the first private superyacht equipped with commercial-grade cultivation pods to grow vegetables, further adding to its eco credentials. As for the price tag? Damen is keeping it firmly under wraps...

Blue Marlin and Custom 78: Cost unknown

Admiral Yachts, owned by The Italian Sea Group, is delivering two sensational superyachts this year, according to Boat International : the 256-foot Custom 78 a nd 253-foot Blue Marlin (pictured).

Sleek and elegant, Blue Marlin's exterior and interior are both the handiwork of prestigious Dutch studio Sinot Yacht Architecture and Design.

The superyacht accommodates 12 guests in six staterooms and offers them a wealth of amenities, including a 19-foot swimming pool, a private spa, and a helipad. Its more sustainable credentials include a lower-emission diesel-electric propulsion system.

Precious little is known about Admiral's super-secretive Custom 78 project, as noted by Boat International .

It's known that the superyacht's exterior has been designed by Igor Lobanov, the Barcelona-based Russian nautical designer who's renowned for his futuristic, mega-streamlined creations. (An example of his work is shown here.)

Admiral has yet to disclose the price of either  Custom 78 or  Blue Marlin .

Project Toro: Cost unknown

Türkiye's Turquoise Yachts is getting ready to sign off the 259-foot Project Toro . It's actually running behind schedule and was supposed to be delivered last year.

With the exterior and interiors designed by British studio Harrison Eidsgaard – which is behind some of the world's most luxurious private jets, in addition to its portfolio of yachts – the end result will undoubtedly be a feast for the eyes.

Project Toro's neoclassical exterior is a real head-turner, while its interiors – which apparently include "a huge Neptune Lounge," to quote Super Yacht Times – have been described by the design team as "the definition of serenity and calm."

The fully customized beauty, which was sold in 2021 for an undisclosed sum, can comfortably fit 14 guests in its seven staterooms, as well as providing space for 21 crew members. Amenities onboard include a beauty salon, gym, and swimming pool.

Al Reem: Cost unknown

Formally known as  Silence , Al Reem is getting its finishing touches at the Bilgin shipyard in Türkiye's capital, Istanbul.

Spanning 263 feet, the superyacht showcases Bilgin's signature style – think razor-sharp exterior lines and a super-slender profile – with naval architecture by Turkish studio Unique Yacht Design. It's the third unit of Bilgin's 263 Series and the most advanced of the trio.

Silent by name, silent by nature: the superyacht was sold to a mystery owner in 2022 and the selling price hasn't been revealed. But it won't have come cheap, that's for sure.

Dreamed up by London's H2 Yacht Design, the modern interiors of the boat whisper quiet luxury. The eight suites (including three VIP cabins) can collectively accommodate up to 12 guests, and there's space for 18 crew members. Al Reem's amenities are top-notch too, with the beach club, gym, and movie theater just some of the standout features.

Project Vento: Cost unknown

Just weeks after Project Toro was sold in 2021, Turquoise Yachts found a buyer for Project Vento . As is the case with Project Toro , the identity of the owner and the price tag have not been divulged.

At 285 feet long, Project Vento is the largest superyacht ever built by Turquoise, with the company teaming up with long-time collaborator London's H2 Yacht Design to work on the boat's esthetics. The result? A distinctive two-tone white and blue exterior with soft, flowing lines.

The interiors are just as eye-catching, with the superyacht boasting a wealth of features.

For the billionaire who has everything, there's a helipad that can also be used as an outdoor movie theater and basketball court. But the pièce de résistance  has to be the incredible 21-foot glass-sided swimming pool on the lowest deck.

Project 1012: Cost unknown

With the venture cloaked in mystery, Feadship hasn't released any renders of Project 1012 and has yet to disclose information about the team behind it.

Based on images of the vessel undergoing trials in December 2022, Megayacht News has speculated that it could be traditional in design and may feature a beach club. However, these details won't be confirmed until the superyacht is delivered sometime this year – so watch this space...

Project 1012 is another Feadship superyacht that's slated for delivery in 2024.

The shipyard is being particularly secretive about the vessel, with details extremely sketchy. While we know that the superyacht is 300 feet long, further information about the vessel is next to non-existent.

Project JASSJ: Cost unknown

Spanning 338 feet, Project JASSJ  is the third-largest of the show-stopping superyachts German shipbuilder Lürssen is delivering in 2024.

Sold in 2021 to an anonymous buyer for an undisclosed price, the superyacht features exterior and interior design by RWD Design. American firm Moran Yacht & Ship is overseeing the build.

Fantastically spacious, Project JASSJ can accommodate 22 guests in 11 staterooms.

Lürssen isn't holding back when it comes to amenities, promising an "industry-leading" beach club, as well as a swimming pool, deck Jacuzzi, top-end gym, and elevator, along with a state-of-the-art helipad and side-opening tender garage.

105 Explorer (NB-729): Cost unknown

Hot on the heels of delivering the 367-foot Renaissance (NB-724) , the largest ever yacht crafted in Spain (and shown here in all its glory), Freire's Galician shipyard is set to complete another whopper:  105 Explorer (NB-729) , which comes in at 344 feet.

Renaissance  has been described by Burgess Yachts as a "temple of leisure" and "sanctum of tranquillity." But 105 Explorer (NB-729) is more about adventure than relaxation...

The superyacht may be kitted out with all the classic creature comforts but, as a roving expedition vessel, the emphasis is on performance rather than amenities.

Reflecting other high-end shipbuilders, Freire has chosen to keep the price of the superyacht a secret in the interest of client confidentiality.

Ace 21: Cost $150 million

Ace 21 is one of four show-stopping superyachts that Germany's Lürssen is delivering this year.

Extending over 256 feet end to end, the glamorous vessel spans five decks – the superyachts we've covered so far have just four – and has been designed to provide five-star relaxation in the world's most idyllic locations. It can accommodate up to 14 guests and a crew of 24.

Lürssen, which has taken care of the naval architecture, has reportedly designed the superyacht so it can cruise closer to shorelines and dock alongside paradise-style beaches and coves.

Ace 21 is all about relaxation – and its designated wellness zone, complete with an extensive spa, beach club, and deck Jacuzzi, combine to make it the perfect place to kick back, millionaire style.

SuperYachtFan reports the vessel was ordered by an unnamed individual who's said to be a prominent figure in the yachting world. The site pegs Ace 21 's price tag at $150 million and estimates annual running costs could stretch as high as $15 million.

Project 825: Cost $186 million

On the other hand, the asking price for Feadship's Project 825  has been revealed.

Due for delivery later in the year, the 249-foot superyacht is currently available for $186 million via Burgess Yachts.

Newly-built vessels of this size and caliber are usually custom orders, so it's rare for one to come on the market. The yacht is likely to be snapped up by a member of the super-rich elite who doesn't have the patience to wait years for a bespoke job .

The turnkey superyacht, which is getting its finishing touches at the Feadship Royal Van Lent shipyard in the Netherlands, has a slick two-tone exterior by Feadship's De Voogt Naval Architects. Its chic interiors are courtesy of Parisian design house Gilles & Boissier.

Project 825 has six staterooms with space for 12 guests, who'll have their every whim catered to by 17 crew members. Among its key selling points are an awesome glass-bottomed swimming pool and a private VIP terrace that boasts its own Jacuzzi.

There's also a sauna, deck gym, games room, and touch-and-go helipad, as well as an elevator. 

Project 712: Cost $200 million+

Feadship is practically churning out superyachts at the moment, with multiple deliveries scheduled this year. Project 712 is among them.

The 272-foot vessel features an exterior design by Feadship's De Voogt Naval Architects. Unlike the aforementioned Project 825 , however, the interiors are the work of top Dutch firm Sinot Yacht Architecture & Design, not French studio Gilles & Boissier.

Because Feadship is selling Project 825 , the price has been revealed – but Project 712 's cost is being kept firmly under wraps. Given its larger dimensions, it's likely to be even more expensive than its sister vessel.

The superyacht has space for up to 10 guests across its five cabins, according to YachtCharterFleet,  and comes equipped with a wealth of billionaire-worthy amenities, including a beach club, a gym, and a deck Jacuzzi.

Project 821: Cost $200 million+

The biggest Feadship superyacht launching this year – not to mention the largest the Dutch company has ever built – is  Project 821 , which spans 390 feet.

Feadship is being as secretive about this superyacht as it is with Project 1012 , with very few details known about it. 

The exterior design is characterized by soft lines, and there's a capacious beach club to the rear of the superyacht that leads down to a swimming platform... And that's all we know. 

Both the buyer and the price of  Project 821 are being kept hush-hush, though the superyacht is likely to have cost considerably more than the smaller Project 825 , which is on the market for $186 million.

Project Deep Blue: Cost $450 million

The second-biggest of Lürssen's four superyachts expected to launch this year, Project Deep Blue may not be delivered to its owner until 2025, according to several expert forecasts.

Details about the project are scant. Even the final length of the superyacht is uncertain, but it's believed to measure at least 427 feet.

No doubt the owner is delighted with the sophisticated exterior design, which bears similarities to Lürssen's Ahpo (now named Lady Jorgia).  

SuperYachtFan reports Project Deep Blue is expected to accommodate 24 guests and a crew of 45. It estimates the vessel would cost a staggering $450 million, with punishing yearly running costs of $45 million. The website has vaguely identified the owner as an Indian or Chinese billionaire.

Project Luminance: Cost $500 million (£392m)

The biggest of Lürssen's four show-stopping superyachts hitting the water in 2024, Project Luminance spans a whopping 475 feet, making it almost as long as three Olympic-sized swimming pools.

The superyacht was originally slated for completion last year, but the delivery date has since been put back. A masterpiece of nautical design, Project Luminance wows thanks to its exterior by Monaco-based Espen Øino and equally elegant interiors by French studio Zuretti Interior Design.

Project Luminance is estimated to accommodate as many as 24 guests across 12 opulent staterooms. Amenities are fantastically lavish, with the vessel reportedly boasting two helipads and a massive swimming pool, which comes complete with an adjacent dip pool.

Reported to cost in excess of $500 million, Project Luminance was commissioned by Rinat Akhmetov, the richest person in Ukraine.

A report in The New York Times in 2022 suggested Akhmetov was considering selling the vessel in light of Russia's invasion of his home country. Still, it appears the billionaire might have decided to keep it for now. And who can blame him?

Somnio: Cost $600 million (£470m)

Putting this year's other launches firmly in the shade, Somnio spans a colossal 728 feet, making it the largest superyacht ever built.

The world's first "yacht-liner," this $600 million floating palace for the mega-rich is billed as "the most exclusive address in the world" and will cruise the planet's iconic yachting destinations, from Monaco to French Polynesia.

Somnio features 39 luxe private residences and a wealth of "six-star" amenities, including an enormous resort-style swimming pool, premium spa, opulent movie theater, gourmet restaurants, 10,000-bottle wine cellar, and a library.

Nearing completion at Norway's Vard shipyard, the six-deck nautical extravaganza is a collaboration between Somnio, Fincantieri, and Vard, while Tillberg Design of Sweden and the UK's Winch Design have looked after the interior design.

The potential occupants of the 39 apartments are being carefully hand-picked. On offer are units with two to four bedrooms, with the option to fully customize them with the likes of a gym, personal kitchen, library, and more.

Those lucky enough to get a Somnio invite can expect to pay from $22 million to secure a cabin in the elite vessel, with service charges likely to be sky-high too.

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