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Feadship celebrates milestone launch of 119m fuel cell powered Project 821

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By Anna Ingles   7 May 2024

Dutch shipyard Feadship has made waves in the maritime world by launching the inaugural fuel-cell-powered luxury superyacht. Dubbed Project 821, this 389.76ft (118.8m) superyacht, crafted with the visionary design of RWD, made its grand debut from Feadship’s van Lent facility on May 4.

Project 821 stands as a monumental leap forward in sustainable yachting, harnessing liquid hydrogen stored at frigid temperatures below -253°C to fuel its onboard electricity needs.

This innovative approach supports both the superyacht's general operations and its propulsion along coastal voyages around popular yacht charter destinations . Achieving this milestone necessitated groundbreaking advancements in regulatory frameworks at various levels to ensure the safe integration of hydrogen storage and fuel-cell technology.

The aim has been to develop a new, clean technology not just for this project, but for the world. Jan-Bart Verkuyl, Director and CEO at Royal Van Lent Shipyard, Feadship

Also setting a new benchmark as the largest motor yacht ever launched in the Netherlands, surpassing previous records including the recently delivered motor yacht LAUNCHPAD with a significant increase in volume, Project 821 boasts an array of luxurious amenities that are popular with luxury charter yachts , including a unique semi-submerged Neptune lounge, a cinema, library, medical facility, and an 8.2-meter swimming pool featuring contraflow technology.

Design elements onboard have been aimed at maximizing natural light, such as an atrium encircling an elevator shaft and extensive use of floor-to-ceiling windows, to enhance the onboard experience.

Styled with a "Nikki Beach" aesthetic, the striking superyacht offers the ambiance of a secluded, multilevel seaside residence, providing accommodation for up to 30 guests across 12 versatile cabins. The interior design incorporates coastal-inspired décor with a mix of natural materials and textures.

The yacht's hull design intricately incorporates an unprecedented number of hull openings, including balconies and platforms, ideal for exploring the Mediterranean , achieving a sleek silhouette without compromising on its considerable volume.

A key challenge in the project was devising an efficient solution for storing liquid hydrogen onboard, which requires significantly more space than conventional diesel fuel.

Despite its pioneering hydrogen storage system, Project 821 also anticipates future adaptations, such as the potential use of methanol for even more efficient energy storage.

Project 821 not only showcases the potential for alternative energy sources in luxury yachting but also marks a significant step towards Feadship's commitment to achieving "net zero" emissions by 2030. With its innovative power and propulsion systems, Project 821 paves the way for future developments in sustainable yachting technology.

At this time it is unknown whether Project 821 will join the fleet of Mediterranean or Caribbean yacht charters , however, if you're looking for a crewed yacht charter of a similar caliber take a look at all Feadship yacht charters , or contact your preferred yacht charter broker .

Feadship yacht charters

97m Feadship 2017 / 2022

93m Feadship 2019

92m Feadship 2016

84m Feadship 2015 / 2020

81m Feadship 2011 / 2017

75m Feadship 2020

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Feadship release rendering of 76m superyacht PROJECT 825

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Written by Rachel Kelly

Currently under construction is the Dutch built superyacht PROJECT 825 , a stunning 76m (249’3”) motor yacht due for delivery in November 2024.

Feadship Project 825 yacht rendering profile

Feadship have long been recognised as one of the finest superyacht shipyards and this project presents with a dual-tone exterior from Studio De Voogt , with distinctive railing standing out against the long line of dark windows.

Standout features include a raised glass-bottomed pool surrounded by sun beds on the main deck aft adjacent to a bar and drop-down swivel TV. Other onboard amenities include an upper deck wellness centre with a sauna, massage room and gym overlooking a terrace equipped with a bar, lounge and Jacuzzi.

Feadship Project 825 yacht rendering pool

The interior comes from Parisian studio Gilles & Boissier who have used a palette of lime-washed wood with stone and earthy tones to create a contemporary feel. A dedicated owner’s deck has private access to a forward terrace with jacuzzi while there are 5 additional guest suites and cabins for 17 crew.

Feadship Project 825 yacht rendering – aerial view

Once complete, her twin 2,000hp MTU diesel engines will deliver a top speed of 15.4 knots with cruising at 12 knots giving a 5,000 nautical miles range. Additional comfort is provided by the zero speed stabilisers.

We hope to bring you further details of PROJECT 825 , when she is launched.

Please contact CharterWorld - the luxury yacht charter specialist - for more on superyacht news item "Feadship release rendering of 76m superyacht PROJECT 825".

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Obsidian: Feadship’s first delivery of 2023 raises the bar on carbon reduction

Feadship is another step closer to the goal of producing carbon-neutral superyachts by 2030. The recently built 84.20-metre Obsidian is the first of Feadship’s new generation of large yachts furthering carbon reduction through hulls optimised at cruising speed instead of top speed, weight control, advancements in electric propulsion, and the ability to run engines on non-fossil diesel fuel called HVO. In fact, the yacht's trials were conducted with the generators running on this second-generation biofuel, reducing carbon emissions by 90% compared to yachts operating on fossil fuels.

The brief for the yacht was to be more energy efficient and emit less carbon than Feadship’s ground-breaking hybrid yacht, Savannah , which launched in 2015. Reducing the environmental impact by more than 30% would have been a tall order in any case, but the entire 12-month design period for Obsidian occurred at the height of a global pandemic. With Covid-19 lockdowns, none of the designers, engineers, or other parties were able to collaborate in person.

Working in parallel, Bram Jongepier, Senior Designer at Feadship De Voogt Naval Architects, developed a sustainability index, providing a great deal of guidance on how all of a yacht’s components and operations contribute to its carbon profile and environmental impact.

Reducing CO2 emissions is a top priority, but Feadship goes even further by addressing the overall environmental impact of its vessels. The emissions of nitric oxide and nitrogen dioxide (NOx), particulate matter, hydrocarbons, and the impact of building materials like steel, aluminium, fairing compounds, antifouling, teak, interior finishing, and more, are under scrutiny. This, together with CO2 emissions, is what we call environmental impact, which is calculated using life cycle assessments (LCA).

Yacht Environmental Transparency Index

Jongepier’s work became known as YETI, the Yacht Environmental Transparency Index. Operating on the philosophy that one cannot control what one cannot measure, the algorithms describing the environmental impact of CO2, NOx, particulate matter, shore power, and fuel production have been made freely available by Feadship to the signatories of the Water Revolution Foundation, a yachting industry association dedicated to driving sustainability in the superyacht industry through collaboration and innovation. This led to a Joint Industry Project (JIP) under the flag of the Water Revolution Foundation with twenty major partners in the yachting industry.

The YETI JIP produced a tool which, with data augmented now by other partners like engine manufacturers, predicts the environmental impact of a standardized operational year in the yacht’s lifecycle. Jongepier estimates that YETI effectively captures 90% of the total lifecycle of a yacht and each new build helps gather more data. It is estimated that Obsidian will operate with 27% less total environmental impact than a yacht of similar size launched only five years ago if run on fossil fuel, and 60% less when using HVO.

For Obsidian , the first step was building on innovation from the award-winning Savannah . Using Feadship’s Advanced Electrical Drive (FAED) program for diesel-electric hybrid power, Obsidian has 4.5 times more electrical storage capacity than our first hybrid yacht, Savannah . She has no drive shafts and no rudders, preventing added drag caused by these appendages. Propulsion and steering are supplied by a pair of Veth contra-rotating thrusters that deliver both functions. Veth’s experience with compact units for ships operating on rivers was seen as a perfect fit for a yacht specified for a relatively shallow draft. Feadship and Veth collaborated on computational fluid dynamics (CFD) analysis of the shapes of the drive legs and the propellors to maximize efficiency and minimize vibration, dampening vibration being another key component of the brief.

Powering it all is a 4.5 MWh battery bank that is charged by four generators — two large and two small, custom, variable speed units based on tweaked CatC32 engines with permanent magnet alternators that deliver power as needed. Where Savannah and Lonian – which launched in 2018 – operated on 560 volts, the DC system on Obsidian is a staggering 1,000-volt system because the yacht is fully powered by electricity. A total of 560 battery modules are housed in a special chilled room amidships on the tank deck, revealing another benefit of the hybrid system: The components no longer need to be adjacent. The thrusters are in the best location for steering and water flow, while the generators and their exhaust systems, batteries, and electrical switchboard are located elsewhere for optimal weight distribution and crew access. Obsidian should be able to cruise for 35 nm at 10 knots on batteries alone. At anchor, the batteries will provide silent operation for 10-15 hours.

Fuel savings

Advanced propulsion alone, however, would not result in the level of fuel savings required. When analysing Obsidian using the YETI tool, it revealed that about 60% of the energy consumed goes simply to powering the onboard lifestyle – the air conditioning, heating, hot water, lighting, cooking, entertainment electronics, pools, and laundry service. Reducing the energy needed to provide for the yacht’s “hotel” load became the target.

Several major innovations adapted for Obsidian address these target areas through peak load shaving and reducing HVAC demand through the computerized management of cooling guest and crew zones. But since making and using energy creates heat, capturing unwanted or “waste” heat to be used for other purposes became a key focus. Out of every 100kW of energy created by fossil fuel combustion in a typical internal combustion engine, only 35 to 40% is effective mechanical energy, with the rest being heat, usually discarded overboard with the water-cooling system and in the exhaust gasses. Feadship’s design and engineering team began by developing a much more comprehensive system than simply using generator cooling water to heat a swimming pool, a process that has become standard for many superyacht builders.

Considering that 25% of that "hotel" energy demand is about making heat, everything that needed heat was identified. The largest consumer was air conditioning.

The reason being that to sufficiently dehumidify the surrounding sea air, the HVAC system needs to cool incoming fresh air to about 7 degrees Celsius, but then, to keep the interior from feeling like a meat locker, heating units must warm the air to the desired temperature for each room.

Many points of energy savings

Conventional installations typically reheat with an electric heating element, but Obsidian uses waste heat for that purpose. Not only is waste heat captured from the generators, but also from the AC chillers themselves. This is not just free energy, but it is essentially carbon-free energy because it reuses incidental heat generated by another function. “There are so many points of energy savings integrated on this yacht that it is hard to count,” said Project Manager Mark Jansen.

Urged to explore all avenues, Feadship’s engineers introduced an innovative heat pump system to pull heat from various sources, including ambient sea water. Using a heat pump, which transports thermal energy (heat) from one place to another, is five times more efficient than simply making heat with a regular electrical heating coil, according to Jongepier.

An onboard computer system helps to choose seamlessly the appropriate combination of sources. This translates into the following operational modes:

• In harbour at normal sea temperatures plugged into shore power: Heat is provided by AC compressor waste heat, augmented by the heat pump if necessary.
• At anchor at normal sea temperature, operating on battery power: Heat provided by AC compressor waste heat, augmented by heat pump if necessary.
• Sailing, at anchor or in harbour at normal sea temperature with generators in operation: All necessary heat provided by generator waste heat.

Because the path to carbon-neutral superyachts goes far beyond a single solution, Obsidian also involved fresh approaches to the hull form. De Voogt’s naval architects created the low, slim hull, optimized at cruising speed using computational fluid dynamics (CFD) with the final form being made into a model tested in a towing tank. Complex engineering for balance and weight reduction includes new applications for carbon fibre. The louvered aft deck overhangs, for example, are all carbon fibre attached to the aluminium superstructure and require no support pillars. This weight benefit also offered new deck layout possibilities.

For the first time in many years, Feadship is delivering a yacht with a single level engine room, which gave her designers considerably more freedom in creating the interior layout. It also lends more space for guest accommodation and features a total of seven staterooms. According to Jansen, the volume of this 84-metre yacht is typical of that on 100-metre Feadships.

The layout is just as bold and modern as the exterior profile would suggest. Both the exterior styling and interior design are by the British firm RWD, in collaboration with MONK Design.

There are surprising destination spaces such as an asymmetrical atrium staircase leading to a lower deck dining saloon with an entire wall that opens to provide a terrace view just 75 cm above sea level.

Near the stern is an Aqua Lounge where massive windows below water level offer a unique view from the nearby gym. The Aqua Lounge can also function as a cinema and even a classroom.

From decks to the interior, the design leitmotif is all about surprise – most of the corridors and many of the rooms, as well as all of the al fresco living spaces, are not oriented on a fore and aft or athwartships axis. In fact, except for staterooms, none of the interior rooms have any 90-degree angles. A hidden staircase to a study and a sunken lounge on the main deck are just two more of the unexpected interior elements. But the biggest surprise involves the use of submarine anchors. Eliminating the need for a mooring deck forward allows Obsidian to feature a fantastic interior bow observation lounge with double curved glass floor-to-ceiling windows. Access is via a main deck corridor from the guest accommodation area through the tender garage to this hidden gem.

In keeping with the carbon reduction theme, both of the yacht’s primary tenders are electric-powered and custom made by Tenderworks. Four fast charging stations installed by the yard will allow them to be charged in the water or in the tender garage.

After the sea trials it turned out that Obsidian is even more efficient than previously calculated.

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Feadship Announces Build of Hydrogen Fuel Cell Powered Superyacht

By Emily Dawkins

Feadship has unveiled that construction on its first fully certified liquid hydrogen fuel-cell superyacht has now begun. Feadship Director and Royal Van Lent Shipyard CEO, Jan-Bart Verkuyl, announced the news on the yard's social media channels over the weekend.

Renowned for its dedication to sustainable shipbuilding, green company practices and eco-conscious industry commitments, Feadship has now gone one step further in the move to developing solutions for a more sustainable industry, unveiling that its first fuel-cell powered superyacht is now under construction.

The in-build, hydrogen-powered vessel will be fitted with a cryogenic fuel tank which will store liquified hydrogen at roughly -250°C: the densest method of storage of pure hydrogen. This sufficient store will enable cruising at moderate speeds as well as powering the onboard hotel load during summer conditions. 

Within its social media reveal, the shipyard emphasised the excellent nature and increased interest in hydrogen as a fuel source, namely through its efficient production through electrolysis from electricity. The yard commented on how by increasing the use of solar, wind and other renewable energies, green hydrogen production will escalate to buffer those renewable power sources.

This news comes as no real surprise however, as at the end of 2022, the Dutch shipyard revealed that it had achieved a major milestone in the journey to carbon neutrality by receiving approval-in-principle from Lloyd’s Registry for an ‘agnostic’ fuel system. 

As a major progression and second step in its ‘Feadship Pure: Aiming for Zero %’ roadmap, which showcases the yard’s plan to go from diesel hybrid to methanol in less than a decade, the Lloyd’s approval kickstarted this vital step forward for the design teams at Feadship, and therefore strengthened the third step in its roadmap to building a fuel-cell powered yacht by 2030.

Whilst details of this significant news remain sparse, readers can expect to hear more from the yard about the yacht’s build in the coming months. 

"Besides meeting the growing desire of our clients for carbon neutrality, it will help to minimise the environmental impact of our yachts wherever they may cruise in the world" Giedo Loeff, Head of R&D, Feadship

"Besides meeting the growing desire of our clients for carbon neutrality, it will help to minimise the environmental impact of our yachts wherever they may cruise in the world"

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Hull and superstructure joined on 100m Feadship 824 motor yacht

The hull and superstructure of Feadship 's Project 824 have been joined at one of the Dutch yard's facilities, marking a significant milestone for the construction of the 100-metre motor yacht.

The yacht made its way north from through Rotterdam and Gouda, as well as the picturesque countryside, before arriving at its new home in the Dutch yard's Kaag home.⁠ Here the in-build superyacht will undergo outfitting with delivery expected in 2025.

The marriage of the steel hull and aluminium superstructure comes just days after Feadship offered a first look at its superyacht, where the hull was moved out of the NMC facility.

Few details have been revealed about the project so far, but BOATPro data indicates she was ordered in 2021 and is expected to see delivery in 2025. She joins a fleet of 19 other Feadships on order and in build, including Feadship 822, which slipped out of the drydock at Van Lent earlier this month.

The yacht's plumb bow, low profile and contemporary curves draw similarities to fellow Feadships Pi and Najiba . Pi measures 77 metres, while Najiba is 58 metres: both were delivered in 2019 and they each picked up Neptunes at the World Superyacht Awards the following year. 

Other design features include a slanted transom with twin staircases leading to the main deck, where there is a superyacht pool . She is also thought to have a tender garage forward with tenders launched and recovered via a shell door, as well as unfolding balconies in the beach club.

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