Peak Energy to Build Sodium-Ion Battery Plant in Sacramento

Peak Energy is constructing the first commercial United States manufacturing facility for grid-scale sodium-ion energy storage systems in Sacramento, California. Located in the Metro Air Park, the 183,000-square-foot plant represents a capital investment of up to $71 million and is projected to produce four gigawatt-hours of battery systems annually. Production is scheduled to begin in the first quarter of 2027, with deliveries slated for March.

The startup, founded in 2023, aims to replace lithium-ion technology with sodium-ion batteries that avoid the use of lithium, nickel, or cobalt. The company claims these batteries are cheaper, more environmentally friendly, and less flammable because they utilize passive cooling. CEO Landon Mossburg reported approximately $1.1 billion in orders and preorders from clients including Jupiter Power, Energy Vault, and the North American arm of RWE AG.

To secure the Sacramento location over Texas, the project received support from the Greater Sacramento Area Economic Council and the Sacramento Municipal Utility District. The facility is further supported by a $10.5 million CalCompetes tax credit awarded in May 2026 and is expected to create 239 local jobs with average annual wages exceeding $90,000. While the company currently ships small volumes from a pilot line in San Francisco, it is also partnering with General Motors to produce battery cells in Michigan labs starting in 2028.