Peak Energy to Supply 4.75 GWh of Sodium-Ion Storage to Jupiter Power in Landmark Deal

Peak Energy has announced a multi-year phased agreement with Jupiter Power in which it will supply up to 4.75 gigawatt hours (GWh) of its industry-leading sodium-ion battery energy storage systems (BESS).  

The BESS are expected to deploy between 2027 and 2030. 

Peak will deliver approximately 720 MWh of storage in 2027—the largest ever single deployment of sodium-ion batteries to date. The agreement includes an option to deliver a further 4 GWh under a capacity reservation spanning 2028-2030. The contract’s value could exceed $500 million, a milestone for Peak Energy. 

The agreement further validates Peak’s scalable, drop-in solution and supports its commitment to building America’s domestic sodium-ion supply chain. 

Peak’s sodium-ion batteries promise less degradation and lower operations and maintenance costs compared to lithium-ion systems. They also reduce augmentation needs, meaning operators won’t have to add extra battery units or components over time to maintain the system’s storage capacity. 

Additionally, they enable safer operations via the fully passive cooling system, allowing Peak to eliminate many of the parts required by current lithium-ion technologies that demand routine maintenance, repair, and replacement.  

“From day one, we have believed that sodium-ion will be the winning technology for grid-scale storage, which is absolutely essential to meet increasing demand from hyperscalers and AI. Deploying the world’s largest sodium-ion energy storage system with one of the nation’s top Independent Power Producers proves that sodium is ready for today and will dominate the future,” said Landon Mossburg, CEO and Co-Founder at Peak Energy, in a statement. “Jupiter Power has always been on the cutting edge of technology adoption and development, and their team deeply understands the need to invest in and deploy technology solutions that will deliver long- term financial and operational savings to customers. We are thrilled to partner with them to bring Peak Energy’s technology to the market.” 

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