Base Power

Base Power, founded in 2023, raised a $1 billion Series C round in October 2025, reaching a $4 billion valuation. The company has raised $1.3 billion across Seed, Series A, Series B, and Series C funding rounds. Backed by Addition, CapitalG, and Bond Capital, Base Power provides residential battery storage systems delivering whole home backup power. With a growing team and strong capital support, the company is scaling energy storage technology to reduce electricity costs and improve household energy resilience across the United States.