IT'S GREEN, REALLY GREEN
Corvus ESS Will Power the World’s First Fully Electric Offshore Vessel

[By Corvus Energy]
Corvus Energy, the leading supplier of zero emission solutions for the offshore and marine industry, is proud to announce that it will deliver a mega-size battery system for the first fully electric offshore vessel ever to be built.
The vessel is an electric Commissioning Service Operation Vessel (eCSOV) that will be constructed by Armon shipyard in Spain for the UK-based shipowner Bibby Marine Ltd.
World`s first of its kind
Corvus Energy will supply its Blue Whale Battery Energy Storage System (BESS) delivering close to 25MWh of power for the vessel. It will be the largest LFP (Lithium Iron Phosphate) battery system ever delivered to a maritime project.
“A fully electric offshore vessel is something the industry has been working towards for a long time and marks a major milestone in offshore vessel operations," said Pål Ove Husoy, VP Sales at Corvus Energy.
“This eCSOV will be the first offshore vessel that can operate fully electric for a full day and will set a new standard for future offshore vessels. The unique system design incorporating both battery power and dual-fuel methanol engines will significantly reduce carbon emissions and increase energy efficiency while providing the reliability and performance needed for demanding offshore wind and renewable operations.”
Unique and optimized power distribution system
Corvus Energy has been cooperating closely with the shipowner, designer and integrator to dimension and optimize the system design. Unlike conventional hybrid systems, the vessel will utilize its large battery pack as the primary power source, with engines running solely for charging at a constant, optimized load that maximizes efficiency, extends battery lifespan and significantly reduces emissions. The innovative DC grid architecture further enhances overall system performance by minimizing energy losses and ensuring seamless power distribution. Additionally, offshore charging capabilities will enable simultaneous battery charging while maintaining DP for station-keeping, representing an industry first in the SOV market.
Accelerating the path to net zero
Gavin Forward, New Build Director at Bibby Marine, commented: “We are excited to collaborate with Corvus on this pioneering eCSOV project, setting a new benchmark for sustainable offshore operations and driving the future of zero-emission vessel technology."
He added that Bibby Marine selected Corvus Energy "for its proven track record in delivering complex vessel projects, while the LFP battery chemistry was chosen for its alignment with our eCSOV’s operational profile, offering enhanced safety, longevity and reliability for a project that promises to accelerate the path to net-zero for the maritime sector."
Equipment from Corvus Energy will be delivered to the shipyard in 2026, and the vessel is scheduled for operation in 2027 supporting the commissioning and operation of windfarms.
The products and services herein described in this press release are not endorsed by The Maritime Executive.
DLR Awards Contract for New Research Ship to Lloyd Werft

[By: DLR]
The German Aerospace Center (Deutsche Zentrum für Luft- und Raumfahrt; DLR) has commissioned Lloyd Werft in Bremerhaven to build a new research vessel, with both parties signing the contract on 3 February 2025. The ship is expected to cost approximately 36 million euros, and with it, DLR aims to provide the maritime industry with a platform for collaborative research into innovative, climate-compatible propulsion technologies. The vessel is scheduled for completion in summer 2027.
"The new DLR research ship will serve as a unique laboratory for real-world experiments," said Anke Kaysser-Pyzalla, Chair of the DLR Executive Board. "At the same time, it will create new opportunities for public stakeholders in the transition towards digital, climate-compatible, competitive and safe maritime mobility and industry. With its interdisciplinary research approach, DLR is also highly sought after in the maritime sector by industry and the public sector. With Lloyd Werft, we have found an experienced shipbuilder for this unique project, bringing together tradition and innovation at the Bremerhaven site.
Friedrich Norden, Managing Director of Lloyd Werft Bremerhaven, added, "We are delighted to support DLR's valuable research projects through this unique initiative. We will soon be delivering an innovative platform for testing future maritime energy systems under realistic onboard conditions. This flagship project highlights the importance of maritime research in Germany and actively contributes to shaping the maritime energy transition. Both the Lloyd Werft workforce and the entire Rönner Group share this commitment. This contract also demonstrates that Lloyd Werft is not only a strong partner in ship repair and conversion but also a key player in the construction of specialised vessels and complex custom-built structures."
A floating laboratory for climate-compatible propulsion technologies
The DLR Institute of Maritime Energy Systems, based in Geesthacht and Kiel, is dedicated to researching and developing new solutions for the integration of renewable energy into the maritime sector. In collaboration with the Hamburg-based engineering firm SDC Ship Design & Consult, DLR has developed the overall design for the new research vessel, which is now under construction at the Lloyd Werft shipyard.
With this initiative, DLR is advancing climate-compatible shipping, as the new vessel relies on alternative propulsion technologies without fossil fuels.
The vessel will feature a specially designed test engine room, where DLR researchers, along with cooperating companies from the maritime industry, will trial hydrogen-based and battery-powered propulsion systems. It will also enable the real-world testing of uncertified components, such as energy converters and reformers. A key focus will be ensuring that the energy generated can be safely integrated into the onboard power system and used for propulsion.
The research ship will be 48 metres long and 11 metres wide, with a draught of 3.2 metres. It will primarily operate in the North Sea and Baltic Sea on test voyages lasting from one to several days, accommodating up to 20 people onboard. Once completed, the vessel will be based in Kiel.
Innovative, digitalised transport systems on the water
The research vessel will be equipped with a digital twin – a virtual replica that will enable DLR researchers to conduct extensive computer simulations to ensure the ship's safe and efficient operation. This technology will allow researchers to, for example, analyse propulsion components and digital navigation systems in preparation for and alongside practical trials.
With this initiative, DLR is providing the maritime industry with a platform for the development, integration, testing and certification of resource-efficient, digital and intelligent maritime systems. Authorities responsible for security will also benefit, as the vessel will support DLR's research in civil security and defence applications.
The products and services herein described in this press release are not endorsed by The Maritime Executive.