US home battery installations hit record high on rising electricity costs
US home battery installations reached a record high in early 2026, driven by state incentives and rising electricity costs, which can provide a more flexible energy supply for power grids. Companies like Sunrun, Renew Home, and Tesla are forming a "distributed power plant" to potentially supply hyperscaler data centers, while SPAN is exploring placing data center servers in suburban homes.
US homeowners installed a record 673 megawatts of energy storage in Q1 2026, spurred by state incentives and rising residential electricity costs, according to the US Energy Information Administration. This surge, primarily in California and Hawaii, with significant numbers also in Texas and Arizona, allows homeowners to store energy and potentially ease strain on power grids. California, for instance, offers better pricing for residential electricity exported to the grid after sunset, while Hawaii provides a $400 payment per kilowatt of installed battery storage. This trend coincides with a slight slowdown in residential solar panel installations due to the elimination of a federal tax credit, but overall solar electricity generation continues to grow.
The increased home battery capacity is seen as a crucial resource for power grid operators managing rising electricity demand, particularly through virtual power plant (VPP) schemes. These VPPs network and coordinate thousands of home batteries, compensating homeowners for contributing to the grid. Austin, Texas-based startup Base Power, for example, offers discounted batteries and electricity rates in exchange for managing its battery fleet as a VPP. In 2025, the amount of US home battery capacity integrated into VPPs increased by 153 percent.
Companies are also exploring opportunities to leverage this distributed energy for energy-intensive AI data centers, which are significant contributors to the nation's rising electricity demand. On June 24, Sunrun, Renew Home, and Tesla announced a collaborative agreement to combine "hundreds of thousands of home battery systems" into "the largest distributed power plant in the country," aiming to deliver over 16 GW of power to both hyperscaler data centers and utility companies. Separately, San Francisco-based startup SPAN is developing a novel approach to install data center servers directly in suburban homes, utilizing residential batteries and potentially solar panels for backup power.