Base Power has raised a $1 billion Series D financing at a $13 billion post-money valuation and launched Base Core, a U.S.-designed and manufactured home battery system, according to a company announcement covered by citybiz on August 3, 2026. The new battery has a capacity of 39.2 kWh, as reported by Energy Storage on August 5, 2026.
The company frames Base Core as a platform aimed at expanding distributed energy capacity and strengthening grid resilience. The product is described as U.S.-designed and manufactured, though neither source specifies the exact production location or the system’s power rating in kilowatts. The 39.2 kWh figure represents the energy capacity only.
Base Power’s funding round and product launch come amid a broader push into battery manufacturing and home storage in the US market. The company’s valuation of $13 billion post-money places it among the larger private players in the distributed energy space, but the sources do not disclose revenue figures, shipment numbers, or customer adoption rates for Base Core.
It is also not yet confirmed when Base Core will ship to customers, what it will cost, or which installation partners will handle deployment. The Energy Storage article notes the launch but does not include pricing or availability dates. Interested homeowners should treat the product as announced but not yet commercially verified.
Separately, the broader US storage market is seeing significant industrial activity. Ford launched a subsidiary called Ford Energy in May 2026 with a target of building 20 GWh of battery storage annually, according to Electrek. That report also cites US industry projections of 24 GW of new utility-scale battery storage added in 2026, and over 600 GWh of storage on the US grid by 2030. Those figures are utility-scale projections and do not directly apply to the residential segment where Base Core competes.
In a different technology lane, CATL introduced its Tener Sodium system in June 2026, a sodium-ion energy storage product with a rated capacity of more than 30 MWh and a modular design where each module weighs 42 tons. That system is aimed at grid-scale storage, not home use, and is not a direct competitor to Base Core.
For homeowners evaluating Base Core, the key confirmed facts are the 39.2 kWh capacity, the US manufacturing claim, and the $1 billion raise. Pricing, warranty terms, round-trip efficiency, and compatibility with existing solar inverters have not been published in the available sources.
