U.S. based company, Peak Energy, has announced a multi-year agreement with Jupiter Power, developer and operator of utility-scale battery energy storage systems.
Under the agreement, Peak Energy will supply up to 4.75 GWh of sodium-ion battery energy storage systems for deployment between 2027 and 2030.
The phased agreement includes an initial deployment of approximately 720 MWh in 2027, which represents the largest single announced installation of sodium-ion storage to date. It also includes a substantial capacity reservation option for Jupiter Power, covering a further 4 GWh of Peak’s systems for the 2028-2030 timeframe. In total, the total contract’s value could exceed $500 million, a significant milestone for Peak Energy.
Peak Energy’s sodium-ion technology features a passive cooling design that removes service-heavy components, lowers auxiliary power use, and limits augmentation needs. The system delivers improved long-term degradation, reduced maintenance requirements, and lower operating costs compared to lithium-ion solutions. Recent agreements highlight growing momentum for Peak’s grid-scale platform and support the development of a scalable domestic sodium-ion supply chain in the United States.
Landon Mossburg, CEO and Co-Founder, Peak Energy, said, sodium-ion technology is well suited for grid-scale storage as demand from data centers and AI continues to grow, noting that its deployment with Jupiter Power demonstrates the technology’s readiness for large projects.
Mike Geier, Chief Technology Officer, Jupiter Power, stated that supporting domestic battery manufacturing and expanding reliable, dispatchable storage remain priorities, and described Peak Energy’s sodium-ion approach as a promising development for future cost and operational performance.