Sunrun Captures 48% of Residential Storage with 1.5 GWh Installs
Industry data show the U.S. residential energy storage sector added 3.1 GWh in 2025, with Sunrun reporting 1.5 GWh—48% of the total. Sunrun has 237,000 systems delivering 4.0 GWh of networked capacity, dispatched 18 GWh to grids with 425 MW peak output and reached a 71% storage attachment rate.
1. Dominant Installation Figures
In 2025, Sunrun installed 1.5 GWh of residential battery storage, representing 48% of the 3.1 GWh added nationwide. It has now deployed 237,000 combined solar and storage systems, yielding 4.0 GWh of networked capacity—44% of the 9 GWh installed cumulatively since inception.
2. Grid Dispatch Performance
Sunrun’s battery network dispatched nearly 18 GWh of energy across U.S. grids in 2025, delivering peak output of 425 MW and supporting during critical hours to enhance grid resilience and lower energy costs.
3. Record Attachment Rate and Future Capacity
The company achieved a 71% storage attachment rate in Q4 2025 and projects exceeding 10 GWh of dispatchable capacity by end-2028, underpinning long-term growth in distributed power services.
4. Regional Growth and Partnerships
In California, Sunrun led all installers in storage capacity in 2025; in Texas, it grew installations by over 50% year-over-year and formed partnerships with NRG, Tesla and Vistra to expand its storage-plus-solar offerings and grid programs.