Marine energy storage supplier Corvus Energy, Bergen, Norway, on Thursday launched its Blue Whale NxtGen, an addition to its NxtGen family of marine batteries.

“Blue Whale NxtGen delivers unmatched lifecycle cost, safety, and performance while maintaining modularity, scalability, and unique level of digital services,” according ot a company statement. 

At the core of Blue Whale is full integration of Corvus’ NxtGen architecture, combining modularized design, cost efficiency, and advanced BMS and analytics. The system’s cobalt- free LFP cells, “with market-leading performance and prolonged lifetime up to 15 years enable shipowners to lower capital expenditures and meet ESG targets,” according to the company.

The BW NxtGen ESS will have a 1C charge/discharge rate, making the product suitable for both energy and more power-demanding operational modes.

“Blue Whale NxtGen is more than a new product launch — it represents a strategic step forward for Corvus Energy and the maritime industry,” said Fredrik Witte, CEO of Corvus Energy.

“Without compromising on Corvus´ strong focus on quality, safety, security, and sustainability, we are introducing contract manufacturing to optimize cost, stronger focus in China, more robust diversified global sourcing, and the ability to swap battery cells without changing the product design,” said Witte.

“This platform strengthens our position as the trusted partner for green maritime solutions and ensures our customers’ investments remain relevant as the industry continues to evolve."

“Our customers are asking for solutions that balance sustainability with strong business value. Blue Whale NxtGen delivers exactly that — higher energy density, longer lifecycle, and simplified installation, all backed by a stronger global presence with expertise closer to our customers,” said Ole Jacob Irgens, head of sales EMEA and Asia at Corvus Energy.

“For shipyards, this means more cost-optimized supply chain, installation, and technical support. For shipowners, this helps us reduce life cycle costs, meet ESG commitments, and stay ahead of regulatory changes without compromising performance,” said Irgens. “It’s a platform designed not only for today’s challenges but for the opportunities of tomorrow.

Blue Whale NxtGen will have Corvus’ in-house designed fourth-generation battery management system, data ownership, and industry-leading cybersecurity standards that further strengthen operational trust. The first Blue Whale NxtGen projects will be delivered in Q4 2026.