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Alva Ocean Eco 90 H2: The 90ft superyacht that uses no fossil fuels at all
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A 90ft superyacht that uses no fossil fuel at all sounds too good to be true but that’s exactly what Alva Yachts Ocean has already started building…
German newcomer Alva Yachts is building what is claimed to be the first zero-emissions supercat. Unlike existing solar-powered motor catamarans that rely on diesel-powered generators to boost speed and range, the Alva Ocean Eco 90 H2 will carry no fossil fuels whatsoever.
For the few occasions when neither the extensive solar panels nor the battery pack can cope with the demand of the yacht’s electric motors and hotel loads, it will use hydrogen-powered fuel cells to generate electricity while emitting nothing but water. It also boasts a pair of automated wingsails to increase cruising speeds and range yet further.
Remarkably, this isn’t some futuristic pipedream but a real electric boat that is already in build at Alva’s production facility in Turkey, with an expected launch date of late 2024.
Safety in numbers
Central to the Alva Ocean Eco 90 H2’s ability to cope without an internal combustion engine is the fact that it doesn’t rely on any one source of power.
When the sun is shining, the 200m2 of photovoltaic panels integrated into the flybridge hardtop and coachroof generate enough electrical energy (up to 40kWp) to power the yacht’s two electric motors at 3-4 knots and run all the ship’s systems (air con included).
For faster cruising speeds or cloudier conditions, a vast 500kWh reserve of lithium ion batteries (10 x the power of a standard Tesla 3 car battery) should still give a cruising range of at least 50nm at 5-7 knots.
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Flat out, the twin 480kW electric motors are capable of up to 12 knots, but this does come at the cost of a considerably reduced range. Only when demand exceeds the combined output of both the solar panels and the battery pack will the hydrogen fuel cells kick in.
These are being supplied by EODev, which has real-world experience of using hydrogen fuel cells to propel boats thanks to Energy Observer , the experimental catamaran that has already cruised around the world using a combination of solar and hydrogen power.
The Alva Ocean Eco 90 H2 will use EODev’s latest REX H2 fuel cells, which have been developed jointly with Toyota for use in marine applications. These work by passing hydrogen through a fuel cell that uses a platinum catalyst anode to split the hydrogen into positively charged ions and negatively charged electrons.
A computer decides which power source to use
A polymer electrolyte membrane allows the positive ions to flow directly through to the cathode while the negatively charged electrons have to travel round an external circuit to the anode where they recombine with oxygen to create water (H2O), electricity and a small amount of heat. Each of these fuel cells develops up to 70kW and can be stacked to deliver more power.
Alva hasn’t yet confirmed how many of these fuel cells or how much hydrogen the yacht will carry, or what cruising range this will allow, but we do know the hydrogen will be stored in high-pressure tanks to minimise the amount of space required. Refuelling is likely to take place from specially adapted road tankers at a pre-arranged dockside location.
Wings not sails
The addition of wingsails to the Alva Ocean Eco 90 H2 are not considered a strict necessity but will deliver faster cruising speeds and/or reduced power consumption even in light winds. Unlike conventional sails, these are semi-rigid double-skinned wing-shaped structures that require no additional rigging and no previous sailing knowledge to operate.
Going Eco doesn’t mean skimping on luxuries
Consisting of two independently rotating sections to adjust the angle of attack and camber of the wing, they work by creating high pressure on one side and low pressure on the other as the wind flows past them, helping drive the yacht forwards regardless of where the wind is coming from.
The beauty of wingsails, in this case a pair of Ayro Oceanwings, is that the whole system can be automated. Sensors on the wings measure the wind speed and direction, a computer analyses the data then instructs the motors to adjust the wings accordingly.
This makes them more efficient than conventional sails (Ayro claims double the performance) but also far less hassle. They can also be raised, lowered and reefed at the touch of a button when the winds are too weak or strong to deploy them.
Guests can relax in the palatial main deck saloon
Computer says yes
Controlling all these systems is Alva Connect, the yard’s in-house software that continuously monitors the ship’s power requirements and seamlessly juggles the four different power sources (solar, battery, fuel cell and wing sails). The captain selects the speed and heading and the computer works out the rest, leaving guests to revel in the carbon-free, near-silent progress.
The first Alva Ocean Eco 90 H2 is being fitted out for both private and commercial use as a fully coded charter yacht. Based in the Med, it will feature a lavish owners’ suite with a study, walk-in wardrobe and bathroom, and three further double guest cabins, all with their own ensuites.
The exact price of the build remains confidential but a standard Alva Ocean 90 with a solar electric drivetrain and diesel range-extenders starts at around €7 million ex taxes.
Alva Ocean Eco 90 specifications
LOA: 90ft 1in (27.50m) Beam: 35ft 9in (13.98m) Draft: 3ft 10in (1.2m) Displacement: 85 tonnes (light) Motors: 2 x 480kW electric Battery: 500kWh lithium ion Solar panels: 40kWp Fuel cell: 70kW hydrogen Wingsails: Ayro Oceanwings Max speed: 12 knots Range: Unlimited @ 3-4 knots
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Breaking News
Alva yachts has revealed new, stunning images of the ocean eco 90 interiors.
New renderings of the interiors show huge spaces ansd understated luxury. Ocean Eco 90 has been developed by Alva Yachts and HENN Design.
You can see the renderings in our gallery on top of the page: plenty of images ofthe main saloon and the owner’s apartment. Below is our article about Alva Ocean Eco 90, written at the time of her launch in July 2020.
Alva Yachts introduces Ocean Eco 90 all-electric catamaran
The 27M solar catamaran Ocean Eco 90 will be ready by the last quarter of 2021 and will have virtually unlimited range. Engineers and technicians at Alva Yachts are completing the molds for hull and superstructure.
Alva Yachts, German builder of electric catamarans and sail boats, has just announced the introduction of Ocean Eco 90 by Henndesign, a 27M multi-hull yacht with electric propulsion and (claimed) transatlantic range. The model fits the brand’s philosophy, which has sustainability at the heart of their yachts, both motor and sail. Differently to other electric boat brands, Alva Yachts models are designed specifically around electric propulsion, not retrofitted.
The (electric) journey has started
At the end of June 2020, the project of Ocean Eco 90 is completed and the technical specifications are defined. Construction has begun with the molds for the hull and the superstructure, while the yacht will touch the water by the last quarter of next year.
Ocean Eco 90 is a 27.50 meter long catamaran, with an impressive beam of 14 meters, with a hull made for the range of speed of green cruising, which is not about the thrill of speed but rather about enjoying the voyage. She will available with hybrid or fully electric powertrain. The design is by Milan and Holger Henn of the German Studio HENNDESIGN and the Hamburg based naval-engineering studio iYACHTS .
The superstructure is covered with over 200 square meters of solar panels, giving her a transatlantic range and, under right circumstances, a virtually unlimited autonomy, as the panels take the energy from the sun and store it in the battery packs that power the electric engines.
The hybrid version has two 250 kW electric drives and two 456 kW diesel engines, which also replace the conventional diesel generator.
In the full-electric variant, Ocean Eco 90 is pushed by two 500kW electric drives, connected to a 360 kW/h battery pack, which is powered by sun and generators. The solar panels reach 40 kWp (kiloWatt peak), allegedly much more than the best competitors, while the diesel generators produce 100 kW / DC each.
An even cleaner option is available: the diesel generators can be replaced by two hydrogen-fuel cell ones, and according to the shipyard this makes Ocean Eco 90 the first solar catamaran in this range without the additional aid of fossil fuels.
In both cases, the range in only-electric mode (generators off, power coming from the batteries) can reach 60 nautical miles, a good distance for exploring the most recessed and wild parts of the earth, even restricted marine reserves. All of this, in silence, enjoying the sound of the nature and without disturbing the sea fauna.
Ocean Eco 90 by Henndesign has been shortlisted for “Concept Under 40 Meters Award” in The International Yacht & Aviation Awards 2020.
While the process of construction is well underway, the first unit will be launched by the last quarter of 2021. Manufacturing is fully European, with hull and superstructure built in Antalya, Turkey, and interior and finishing made in Germany.
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The renderings of the exterior and some of the interiors are available, while the 1:30 scale model of a finished Ocean Eco 90 will be visible at the next boat shows.
The numbers of Alva Yachts Ocean Eco 90
- Length Overall …………… 27.50 m (90 ft 2 in)
- Length of waterline …………… 27.00 m (88 ft 7 in)
- Beam …………… 14.00 m (45 ft 11 in)
- Draft …………… 1.2 m
- Displacement (LD) …………… 90,000kg
- Engine Full Electric Version OCEAN ECO 90f -EL …………… 2×500 kW gearless electric drive & 2×100 kVA DC- Generator
- Hydrogen Fuel cell with Hydrogen storage tanks as an option
- Engine Hybrid Diesel-Electric Version OCEAN ECO 90f-HY …………… 2x 250 kW gearless electric drive & 2x 456 KW diesel engine, gearbox, clutch, common shaft – with 5 different drive modes
- Cruising Speed …………… 8-10 kn
- Top Speed …………… 16-18 kn depends on configuration
- Solar Input …………… 40 kWp with “Solar Roof”glass tiles
- Battery capacity …………… 240 kWh – 360 kWh
- Fuel …………… 1.500 l (396 US gal) – 5.000 l (1.320 US gal)
- Fresh Water …………… 1.500 l (396 US gal) – 3.000 l (793 US gal)
- Water Maker …………… 280 l/h (74 US gal/h)
- Hot Water …………… 200 l (53 US gal)
- Grey water …………… 2x 400 l (2×53 US gal)
- Black Water …………… 2x 400 l (2×53 US gal)
- Wastewater Treatment System available
- Shore power …………… 32 Amp
- Air-Conditioning …………… 35 kW / 120.000 BTU frequency driven compressor chilled/ warm water, reversed cycle system, super-silent fan coils
- Classification …………… DNV-GL or RINA / private yacht
Discover Ocean Eco 90 on Alva Yachts’ website
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Alva Yachts reveals interior of first Ocean Eco 90 catamaran
Fledgling German builder Alva Yachts has revealed the interior of its all-electric 27.5 metre solar catamaran model Ocean Eco 90.
It comes after the builder announced that the molds for the hull and superstructure are well underway, with the multihull yacht expected to hit the water in late 2021.
Available with hybrid or full electric propulsion, the catamaran features more than 200 square metres of solar panelling. With an estimated cruising speed of 8-10 knots and top speed of 16-18 knots, the Ocean Eco 90 will have a “virtually unlimited range”, according to the builder.
Designed by Henndesign with naval engineering by the iYachts studio, the catamaran will have a beam of 14 metres and draft of 1.2 metres.
It comes after the builder revealed a range of eco yachts, including the Ocean Eco 60, which is also under construction.
The builder also has a sailing yacht model named the Ocean Sail 82 under development, which features hybrid propulsion, a high capacity battery bank and state-of-the-art rig.
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Similar yachts New listings Alva Ocean Eco 90 Explorer THE FLAGSHIP OF ELECTRIC CATAMARANS The new OCEAN ECO 90 breaks new ground in yacht design and cruising efficiency. It is one of the finest examples of modern-day superyacht building. The Ocean Eco 90 tries to renounce old yachting clichés and create a new look and feel for the new generation of E-Yachting. Modern shapes, a clear and futuristic feel but classic colors and materials create a well-rounded exterior design for forward thinking clients. Some of the key aspects of this design include abundant outdoor space, a large enclosed flybridge that can be an additional stateroom for air-conditioned sky lounge, a large open saloon, and optional owners and/or crew galley. SpecificationsBasic boat info.
Additional InformationComplete the form below and one of our experienced sales brokers will be in touch soon. Similar Boats For Sale Alva Yachts Ocean Eco 90 Explorer Alva Yachts Ocean Eco 90 Alva Yachts Ocean Eco 60 CoupeKeep up to date news & events.  Summertime Boating on the West Coast of Florida: A Paradise on WaterSummertime on the West Coast of Florida is a boater’s paradise. With its pristine waters, abundant marine life, and picturesque landscapes, the Gulf Coast offers an unforgettable ...  How to Choose the Perfect Explorer Yacht for Your Next AdventureIntroduction to Explorer Yachts When you think about heading off on an adventure at sea, the type of vessel you choose is key. Explorer yachts are the go-to for those looking to combine ...  Tips for choosing a yacht broker in Fort LauderdaleIntroduction to Yacht Brokerage in Fort Lauderdale Fort Lauderdale, often hailed as the “Yachting Capital of the World,” is brimming with opportunities for those looking to buy ... |
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OCEAN ECO 90f-HY2x 250 kW gearless electric drive & 2x 456 KW diesel engine, gearbox, clutch, common shaft - with 5 different drive modes. Cruising Speed: 8-10 kn, Top Speed 15-16 kn. Solar Input: 40 kWp , with „ Solar Roof" glass tiles. Batterie capacity: 240 kWh - 360 kWh.
Hybrid Diesel-Electric Version : OCEAN ECO 90f-HY. 2x 250 kW gearless electric drive & 2x 456 KW diesel engine, gearbox, clutch, common shaft - with 5 different drive modes. Cruising Speed: 8-10 kn, Top Speed 15-16 kn depends on configuration. Solar Input: 40 kWp , with „ Solar Roof" glass tiles.
ALVA Yachts, the German builder of luxury electric solar catamarans and sail boats, has announced it is currently building the world's first fuelless 90ft superyacht catamaran with wings, the OCEAN ECO 90 H2. The first superyacht catamaran to run without fossil fuels and producing zero emission, the OCEAN ECO 90 H2 is designed with luxury ...
German newcomer Alva Yachts is building what is claimed to be the first zero-emissions supercat. Unlike existing solar-powered motor catamarans that rely on diesel-powered generators to boost speed and range, the Alva Ocean Eco 90 H2 will carry no fossil fuels whatsoever.. For the few occasions when neither the extensive solar panels nor the battery pack can cope with the demand of the yacht ...
The motor yacht Alva Ocean ECO 90 EX is produced by the brand Alva Yachts since 2020. The Alva Ocean ECO 90 EX is a 27.50 meter cruising power catamaran with 6 guest cabins and a draft of 1.20 meters which can reach speeds of up to 16 knots. The yacht has a fiberglass / grp hull with a CE certification class (A) and can navigate the open ocean ...
Alva Yachts Ocean ECO 90. Alva Yachts. German luxury electric solar catamaran and sailboat builder, Alva Yachts, has announced that it is developing the world's first fuel-free 90-ft superyacht ...
22 November 2022. German-headquartered shipyard ALVA Yachts has sold the second unit in its flagship 27.5 metre Ocean Eco 90 Open catamaran series. Due to hit the water at the end of 2024, the model features an open flybridge configuration and is fitted with solar panels that provide electric propulsion without compromising its transatlantic range.
alva yachts catamaran catamarans electric mobility green boating multihull. New renderings of the interiors show huge spaces ansd understated luxury. Ocean Eco 90 has been developed by Alva Yachts and HENN Design. You can see the renderings in our gallery on top of the page: plenty of images ofthe main saloon and the owner's apartment.
Fledgling German builder Alva Yachts has revealed the interior of its all-electric 27.5 metre solar catamaran model Ocean Eco 90. The master cabin. It comes after the builder announced that the molds for the hull and superstructure are well underway, with the multihull yacht expected to hit the water in late 2021. The galley/ saloon area.
Ocean Eco 90 is a 27.5 m / 90′3″ luxury motor yacht. She was built by Alva Yachts in 2021. With a beam of 14 m and a draft of 1.2 m, she has a GRP hull and GRP superstructure. She is powered by engines of 670 hp each giving her a maximum speed of 15 knots and a cruising speed of 8 knots. Ocean Eco 90's maximum range is estimated at 900 nautical miles. The motor yacht can accommodate 10 ...
The design of the Ocean Eco 90 by Henndesign is shaped around a new solar and electric approach towards catamaran yachting. Different to other catamarans the technology is not an add-on but a central design feature. ... Alva Yachts Ocean Eco 90. Price Request. Length 90 ft. Year 2024. Fort Lauderdale, Florida. Alva Yachts Ocean Eco 60 Coupe ...
The motor yacht Alva Ocean ECO 90 is produced by the brand Alva Yachts since 2020. The Alva Ocean ECO 90 is a 27.50 meter cruising power catamaran with 5 guest cabins and a draft of 1.20 meters which can reach speeds of up to 16 knots. The yacht has a fiberglass / grp hull with a CE certification class (A) and can navigate the open ocean.
The Ocean Eco 90 tries to renounce old yachting clichés and create a new look and feel for the new generation of E-Yachting. Modern shapes, a clear and futuristic feel but classic colours and materials create a well-rounded exterior design for forward thinking clients. ... Alva Yachts GmbH, Altenauplatz 5, Bad Pyrmont, NDS, 31812, Deutschland ...
THE FLAGSHIP OF ELECTRIC CATAMARANS The new OCEAN ECO 90 breaks new ground in yacht design and cruising efficiency. It is one of the finest examples of modern-day superyacht building. The Ocean Eco 90 tries to renounce old yachting clichés and create a new look and feel for the new generation of E-Yachting. Modern shapes, […]
Alva Yachts' 28m Ocean Eco 90 H2 yacht is in-build and scheduled for delivery in 2024. New Model Ocean Eco 90 H2: Alva Yachts' first 28m "fuelless" catamaran with Oceanwings. Written by Alexander Griffiths. Tue, 11 Apr 2023 | 13:30.
The Ocean Eco 90 is a new all-electric 27.5m catamaran from Alva Yachts set to be completed during the last quarter of 2021. Build Updates Alva Yachts start construction on 27m Ocean Eco 90 catamaran . Written by Louis Parkes-Talbot. Tue, 07 Jul 2020 | 10:00.
Find 28 Alva Yachts Ocean Eco 90 boats for sale near you, including boat prices, photos, and more. Locate Alva Yachts dealers and find your boat at Boat Trader!
Find Alva-yachts Ocean Eco 90 boats for sale in your area & across the world on YachtWorld. Offering the best selection of alva-yachts to choose from. ... Alva Yachts: Model: Ocean Eco 90 Explorer: Class: Mega Yacht: Length: 27.50m: Fuel Type: Electric: Hull Material: Other: Hull Shape: Catamaran: Offered By: Alva Yachts: Ocean eco 90 ...
ALVA Yachts, the German builder of luxury electric solar catamarans and sail boats, has announced it is currently building the world's first fuelless 90ft superyacht catamaran with wings, the OCEAN ECO 90 H2. The first superyacht catamaran to run without fossil fuels and producing zero emission, the OCEAN ECO 90 H2 is designed with luxury ...
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