Peak Energy has named Sacramento in California as the site of a planned 4GWh sodium ion BESS manufacturing plant with a capital investment of up to $71 million.
The selection, announced on July 8, comes just nine months after the company launched its sodium ion-based demonstration BESS near Denver International Airport in Colorado.
Peak said the annual production of BESS units at its 183,000ft2 facility in Sacramento will be enough to power nearly four million homes per year. Production and shipping are expected to start in the first quarter of 2027.
With more than 6GWh of customer commitments already in place, Peak said Sacramento will help the US meet rapidly increasing energy storage demand, fuelled by the expansion of AI and data centres.
Peak claims its passively cooled sodium ion BESS systems can reduce the cost of energy storage by 20% and have a 99% guaranteed uptime.
According to Peak, eliminating battery refrigeration costs in California alone could save ratepayers an average of $100 million annually while helping lower the overall cost of energy storage and deliver more affordable electricity.
Landon Mossburg, Peak CEO and co-founder, said: “This facility is proof that America can lead not only in inventing the technology, but in building it at scale.”
Peak is supported by a $10.5 million tax credit from the state of California that was awarded last May.
Dee Dee Myers, senior adviser to California governor Gavin Newsom and director of the governor’s Office of Business and Economic Development, said: “This state has always been the country’s centre of energy innovation. Peak’s investment in Sacramento is proof that we’re also the best place to manufacture those new technologies at scale, bringing good jobs, economic opportunity and critical infrastructure to our state.”
To date, Peak has secured customer agreements with Jupiter Power, Energy Vault and RWE Americas and recently announced a strategic partnership with General Motors, including an investment from GM Ventures, to pair GM’s next-generation sodium ion cell technology with Peak’s proprietary energy storage platform.
