Manufacturing
CATL, HyperStrong sign massive 200 GWh battery supply agreement for energy storage
The procurement is part of a 10-year cooperation, signaling efforts to secure long-term capacity as stationary energy storage demands rise.
By
Tristan Rayner
Nov 14, 2025
Industry
Manufacturing
HyperStrong recently commissioned a 200 MW / 1,000 MWh BESS project in Gansu Province, China, supported by the company’s AI-optimized power trading platform. | Image: Hyperstrong
One of China’s leader energy storage system integrators, HyperStrong, announced this week that it has signed a 10-year long cooperation agreement with CATL, the world’s largest battery maker, that secures at least 200 GWh of energy storage batteries between 2026 and 2028.
The enormous marking one of the largest disclosed ESS supply commitments in the current market. The wider deal runs from January 2026 to the end of 2035 and includes annual “rolling” updates, where both companies revise the next three-year outlook and formalize it via a memorandum each year.
For the first three-year window, CATL will guarantee supply, in an arrangement more often seen in the EV sector. No pricing or margins were disclosed, and HyperStrong did not disclose the technology mix behind the agreement, nor whether the volumes correspond to specific product platforms. Other sources reported the most logical deal, for CATL’s lithium iron phosphate (LFP) battery cells.
Both companies also flagged cooperation outside the cell supply, with a press release noting the pair plan to explore joint investment structures for ESS projects and create an integrated platform that covers development, investment, operations, and maintenance.
Details are light, but the associated press release also mentioned a push to coordinate procurement on AC-side components, which could help reduce some of the fragmentation in China’s rapidly evolving supply chain.
Chinese battery stocks and stocks of lithium miners across the globe rose after the announcement, as more certainty around long-term and persistent ESS demand became evident. Analysts for the Morgan Stanley investment bank wrote that the agreement “confirms strong energy storage system demand globally and a shortage of high-end products,” adding that the size and structure imply CATL would likely secure pricing or margin protection to support long-term allocation. They estimate the annualized volume covered by the deal equates to roughly half of CATL’s projected 2025 ESS sales.
This may also signal a further run of deals from other large storage integrators moving towards multi-year procurement frameworks as supply tightens for cells and containerized solutions.
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