Peak Energy has announced the selection of Sacramento, California as the site of its new 183,000-square-foot manufacturing facility, which will become the first in the United States dedicated to grid-scale sodium-ion battery energy storage systems.
The facility is expected to produce up to 4 gigawatt-hours (GWh) of battery systems annually and begin shipments in Q1 2027.
The project represents up to $71 million in capital investment and will create 239 local jobs over the next 18 months, with an average annual wage of more than $90,000.
Peak’s growth in California is supported by a $10.5 million CalCompetes tax credit awarded in May 2026. With more than 6 GWh of customer commitments already in place, the facility will help meet growing demand for grid storage driven by the expansion of AI and data centers.
“This facility is proof that America can lead not only in inventing the technology, but in building it at scale,” said Landon Mossburg, CEO and Co-Founder of Peak Energy, in a statement. “With our manufacturing facility in Sacramento, we’re enabling American energy innovation to lower electric bills while creating high quality jobs.”
Peak’s passively cooled sodium-ion battery energy storage systems are designed to reduce the cost of energy storage by 20% and offer 99% guaranteed uptime, operating for more than 20 years without scheduled maintenance. In California alone, eliminating battery refrigeration costs could save ratepayers an average of $100 million annually.
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 storage platform.
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