Residential solar storage adoption accelerates in U.S. residential market

37% of new U.S. residential solar systems now include battery storage in 2025, up from 25% in 2024

Lawrence Berkeley National Laboratory data shows 37% of new U.S. residential solar systems installed in 2025 included battery storage—up from 25% in 2024. This trend spans 450,000 new residential solar installations that represented 93% of the annual distributed solar market. California leads the shift with 74% of new installations pairing solar with storage, a jump from 58% in 2024, while national rates for non-California states rose from 7% to 17% between 2024 and 2025. Arizona and Texas also saw notable increases. The median residential battery capacity remained stable at 13.5 kWh, but discharge capacity grew from 6 kW to 11.4 kW in 2025.

This growing integration makes solar power more practical for households by enabling greater self-consumption and reducing grid strain during peak demand. As California’s Net Billing Tariff 3.0 (effective April 2023) accelerated adoption, the trend demonstrates how policy shifts can drive faster energy independence for residential users. The scale—5.3 million distributed solar and solar-plus-storage systems by year-end 2025—highlights the market’s momentum.

For abundance, this means more households can generate their own clean power without relying on the grid during high-cost periods. While still limited to new installations (not retrofits or standalone systems), the trend reduces household electricity costs through energy resilience and lowers strain on aging infrastructure. What follows will depend on whether states like Arizona and Texas sustain this growth and whether the median capacity increase translates to broader affordability.

*Note: Data reflects attachment rates for new solar installations only, excluding batteries added later to existing systems or standalone deployments.*

Source: pv magazine