# Peak Energy Prepares Sacramento Battery Plant

Peak Energy is preparing to begin production at a 183,000-square-foot Sacramento plant designed to produce up to 4 gigawatt-hours of grid-scale sodium-ion batteries annually. The company has invested $71 million and reports an orderbook exceeding 6 gigawatt-hours; a supply deal with Jupiter Power is valued at up to $500 million for as much as 4.75 gigawatt-hours through the end of the decade. This is commercial activity, not a public-sector solicitation, but it could give utilities and government energy buyers another domestic storage supply option as production scales.

- The planned capacity and reported orders make Peak Energy a potential source for grid-storage projects; actual performance and competitiveness at scale have yet to be established.
- Government buyers, utilities, and contractors planning storage deployments can assess sodium-ion batteries as a potential alternative supply, while distinguishing reported commercial orders from an available government contract vehicle.
- Peak Energy’s Jupiter Power deal is the clearest indicator of commercial demand; RWE Americas is also identified as a customer, and General Motors as a co-developer.

**Jurisdictions:** sled
**Industries:** Energy & Utilities
**Topics:** Physical Infrastructure
**Published:** October 23, 2026

### Vendors
- Peak Energy (battery manufacturer)
- Jupiter Power (buyer under sodium-ion battery supply deal)
- RWE Americas (customer)
- General Motors (co-developer)

### Sources
- [A Sacramento factory will turn out 4 gigawatt hours of sodium batteries a year starting early next year, and it is the first US plant built solely for this grid chemistry](https://gcn.com/sacramento-factory-turn-out-gigawatt-hours/22695) - gcn.com