Peak Energy has announced a multi-year agreement with Jupiter Power to supply up to 4.75GWh of sodium-ion BESSs between 2027 and 2030. The contract is valued at up to $500 million.
The deal marks a major milestone for the US-based company, which specialises in low-cost, giga-scale grid storage technology.
The sodium-ion systems offer reduced degradation and lower operations and maintenance costs compared to conventional lithium-ion alternatives. Their fully passive cooling design eliminates many components that typically require routine servicing, contributing to safer operations and a lower total cost of ownership across diverse energy storage applications.
“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,” said Landon Mossburg, CEO and co-founder at Peak Energy. “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.”
“Jupiter Power is excited to support domestic battery energy storage manufacturing as we continue to increase the deployment of firm, dispatchable energy when and where it’s most needed,” added Mike Geier, Jupiter’s chief technology officer.
The initial 2027 delivery of 720MWh represents the largest single sodium-ion deployment announced to date and includes an option to deliver a further 4GWh under a capacity reservation spanning 2028-2030
