Peak Energy has selected Sacramento, California, as the location for what it describes as the US’ first manufacturing facility for grid-scale sodium-ion energy storage systems.
The facility, measuring 183,000ft², is expected to produce up to 4GWh of battery systems annually, enough to power nearly four million homes.
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Peak Energy revealed its plans during an event attended by regional and state leaders. The company stated that it has more than 6GW-hours (GWh) of customer commitments for its grid storage systems.
It expects the Sacramento factory to help address growing demand for energy storage in the US, driven in part by increased use of AI and data centres.
Peak plans to begin shipping its passively cooled sodium-ion batteries, which can reduce energy storage costs by 20% and offer 99% guaranteed uptime, from the new facility in the first quarter of 2027.
Peak Energy CEO and co-founder Landon Mossburg said: “America needs energy storage that is lower cost, more affordable, more reliable and purpose-built to meet the demand coming onto the grid.
“This facility is proof that America can lead not only in inventing the technology but in building it at scale. With our manufacturing facility in Sacramento, we are enabling American energy innovation to lower electric bills while creating high-quality jobs.”
Situated in Sacramento’s Metro Air Park, the project represents a capital investment of up to $71m and is expected to create 239 new local positions over the next 18 months, with an average annual wage of more than $90,000.
Peak Energy believes the manufacturing facility will also stimulate additional business for local suppliers, logistics providers, contractors and service companies in the region.
The company chose Sacramento after a national site search, citing factors such as the local workforce, proximity to California’s energy storage market and the support of the Greater Sacramento Economic Council.
This expansion in California is supported by a $10.5m CalCompetes tax credit awarded in May 2026.
Peak Energy’s technology uses sodium-ion batteries made with domestic materials instead of lithium, nickel or cobalt.
The batteries are designed for utility-scale storage, renewable energy projects and grid applications.
The facility adds to the advanced manufacturing base at Metro Air Park and forms part of Sacramento County’s economic strategy focusing on clean technology and high-quality job creation.
