Marine energy storage system (ESS) supplier Corvus Energy is introducing Blue Whale NxtGen Power, a lithium iron phosphate (LFP) ESS developed together with BYD Energy Storage.
Blue Whale NxtGen Power is the first product resulting from the strategic cooperation between Corvus Energy and BYD Energy Storage, announced in December 2025. BYD Energy Storage supplies battery cell technology and cell stack manufacturing, while Corvus Energy delivers the overall system design and architecture including marine safety features, battery management systems, cybersecurity, digital battery passport, class approval. Final assembly and testing as well as lifetime service support, will be provided by Corvus.
This combination allows Corvus to bring competitive solutions to market more quickly while maintaining full control of the elements that define safety, compliance, performance and long-term customer value. By leveraging BYD Energy Storage’s manufacturing scale and Corvus’ maritime technology experience, the company says that customers can benefit from a cost-effective solution without compromising quality, reliability or lifecycle support.
Blue Whale NxtGen Power is built on the proven NxtGen product platform and architecture, with core elements like stack interface, battery module design, battery management system (BMS) and cell string assembly being shared across the Corvus NxtGen product portfolio. This is designed to deliver significant technical and commercial value throughout the vessel lifecycle. Customers can gain access to a proven technology platform, streamlined installation, simplified maintenance, and common spare parts across multiple products. For existing Blue Whale NxtGen customers, installation practices, service procedures and spare parts management remain largely unchanged, reducing training requirements and lowering operational complexity. The result is considered to offer a future-ready solution that combines innovation with the reliability, familiarity and support of an established platform.
Thor Humerfelt, Head of Product Innovation, Corvus Energy, said: “LFP technology has advanced significantly in recent years and now offers a highly cost-effective solution for a wide range of maritime applications. By combining BYD Energy Storage’s technology leadership, manufacturing expertise and global scale with Corvus Energy’s maritime experience, we can accelerate innovation, reduce system costs and deliver even greater value to our customers. This partnership will strengthen and expand our product portfolio and support the maritime industry’s transition to zero-emission operations.”
The Blue Whale NxtGen Power is designed for vessels where power demand, rather than energy capacity, defines system performance. It is suited for tugs and workboats, offshore vessels using batteries for power optimisation, and large ferries that require rapid charging between crossings.
Corvus Energy and BYD Energy Storage, signed a memorandum of understanding in December 2025 and a strategic cooperation agreement in May 2026, creating a framework for co-developing marine battery systems based on high-rate lithium iron phosphate technology. Blue Whale NxtGen Power is the first commercial result of that work.
Image: Corvus Blue Whale NxtGen Energy is the company’s first LFP battery system based on the NxtGen architecture (source: Corvus Energy)
