Li-ion energy storage systems
Corvus Energy
Norwegian maker of marine lithium-ion energy storage systems (Orca, Dolphin NxtGen, Blue Whale) and the Pelican hydrogen fuel cell system.
About Corvus Energy
Corvus Energy is a supplier of marine battery energy storage systems, based in Bergen, Norway, and part of the BW Group. The company was founded in 2009. It reports more than 1,300 energy storage systems delivered and claims over 50% of the global market for zero-emission vessel solutions. It has 15 offices worldwide and automated production facilities.
The battery portfolio includes the Orca ESS, a high-power modular system with up to 3C rates. It also includes the Dolphin NxtGen ESS in Power and Energy versions, which has DNV cybersecurity certification, and the Blue Whale NxtGen, an LFP system for large vessels that scales from 1 MWh to more than 200 MWh. Corvus systems are used on ferries, offshore vessels, tugs, cruise ships, workboats and in ports.
Corvus has also moved into hydrogen. In October 2023 it launched the Corvus Pelican, a PEM fuel cell system based on Toyota fuel cell technology, and won its first Pelican contract in November 2023. Toyota's Woven Capital invested in January 2024, and a Shanghai office opened in March 2025. Hydro sold its stake in 2025, and new growth capital, including from Just Climate, was raised in October 2025.
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Products (4)
Corvus Energy
Dolphin NxtGen
Modular marine battery system in Energy and Power versions; 8.2 kWh Energy module; BV, DNV, LR, RINA type approvals.
Corvus Energy
Blue Whale NxtGen
LFP energy storage for large vessels; 24.12 kWh modules, scalable from 1 MWh to over 200 MWh; DNV type approved.
Corvus Energy
Orca
Earlier-generation high-power modular marine ESS; 5.65 kWh modules with up to 3C charge and discharge.
Corvus Energy
Corvus Pelican
Hydrogen PEM fuel cell system using Toyota technology; 85 kW modules, 340 kW packs, systems of 340 kW to 10 MW.