Peak Energy, U.S. developers of grid-scale energy storage technology, has selected Sacramento, California, for a new 183,000-square-foot manufacturing facility that the company reports will become the first U.S. factory dedicated to grid-scale sodium-ion energy storage systems. Located in Sacramento’s Metro Air Park, the facility represents a planned capital investment of up to $71 million and is expected to produce up to 4 GWh of battery energy storage systems annually, supporting the company’s expansion of domestic sodium-ion manufacturing for utility, grid and other large-scale stationary energy storage applications.

Peak Energy reports that more than 6 GWh of customer commitments are already in place for its grid storage technology, with production and initial shipments from the Sacramento facility expected to begin in Q1 2027. The company is positioning the additional manufacturing capacity to address increasing U.S. electricity and energy storage requirements, including growing power demand from AI and data center infrastructure. The project is expected to create 239 new local jobs over the next 18 months, with Peak reporting an average annual wage of more than $90,000. Together with its broader growth at the company’s Burlingame, California headquarters, Peak expects to create 348 net new jobs across Sacramento and Burlingame by 2030.

Peak Energy Sacramento sodium-ion grid storage manufacturing facility | EV + Battery Tech Monthly

Peak Energy’s 183,000-square-foot Sacramento facility is planned for production of up to 4 GWh of sodium-ion grid-scale battery energy storage systems annually beginning in Q1 2027.

Central to the new production operation will be Peak Energy’s passively cooled sodium-ion battery energy storage system technology. The company reports that its platform can reduce energy storage costs by 20% while providing 99% guaranteed uptime. Peak is also commercializing what it describes as the world’s first fully passive grid-scale energy storage system, engineered to operate for more than 20 years without scheduled maintenance and designed as a drop-in replacement for conventional battery energy storage systems.

The passive architecture is intended to eliminate the active battery refrigeration equipment typically required to manage thermal conditions within large-scale storage installations, reducing auxiliary power requirements as well as associated equipment and maintenance costs. Peak estimates that eliminating battery refrigeration costs from energy storage installations in California alone could save ratepayers an average of $100 million annually. The company’s broader approach reflects the growing industry focus on total system operating costs, thermal management, service requirements and long-term reliability as grid storage deployments continue to increase in scale.

“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.

Peak Energy has also established a growing commercial base for the technology, with customer agreements including Jupiter Power, Energy Vault and RWE Americas. A multi-year agreement announced with Jupiter Power calls for Peak to supply up to 4.75 GWh of sodium-ion battery energy storage systems between 2027 and 2030, including approximately 720 MWh scheduled for 2027 and an option covering an additional 4 GWh of capacity from 2028 through 2030.

In June 2026, Peak Energy further announced a strategic partnership with General Motors to develop and deploy next-generation sodium-ion battery technology specifically for grid-scale storage. The agreement, which also includes an investment in Peak Energy from GM Ventures, combines GM’s battery cell development capabilities with Peak’s passively cooled energy storage platform as the companies work to develop sodium-ion cells purpose-built for stationary grid applications. Peak selected Sacramento following a competitive nationwide site-selection process, citing the region’s manufacturing workforce, proximity to California’s growing energy storage market, infrastructure and state and local support. The company’s California expansion is also supported by a $10.5 million California Competes tax credit awarded in May 2026. For the U.S. energy storage market, the Sacramento facility represents another step toward larger-scale domestic manufacturing of sodium-ion technology as an alternative battery chemistry for stationary applications where system cost, material supply, thermal management, reliability and operating life can carry greater importance than the energy-density requirements associated with EV applications.

About Peak Energy

Founded in 2023, Peak Energy develops grid-scale energy storage systems for utility, independent power producer, data center and other large-scale applications. The company’s proprietary passive cooling platform is being developed around sodium-ion battery technology for stationary energy storage, with a focus on reducing system complexity, auxiliary power requirements, maintenance and overall storage costs. Peak Energy reports more than $1 billion in commercial agreements, including relationships with Jupiter Power, RWE and Energy Vault, and in June 2026 announced a strategic partnership with General Motors backed by an investment from GM Ventures. The company is headquartered in Burlingame, California, with cell R&D operations in Colorado, and is expanding U.S. production through its planned 4 GWh Sacramento manufacturing facility. For more information, please click here.

Source/Photo Credit: Peak Energy

(Editor’s Note: All trademarks mentioned in this article, including company names, product names, and logos, are the property of their respective owners. Use of these trademarks is for informational purposes only and does not imply any endorsement.)

Molly Bakewell Chamberlin
Latest posts by Molly Bakewell Chamberlin (see all)
Tagged