U.S. Distributed Solar and Storage Data

Berkeley Lab collects, cleans, and publishes project-level data on distributed* solar and distributed solar+storage systems in the United States. The data are compiled from a variety of sources, including utilities, state agencies, local permitting agencies, property assessors, and others. The latest update contains data on roughly 4.5 million individual systems installed through the end of 2024 and provides project-level data covering a wide range of system technical characteristics, installed prices, financing and installer level data, and customer segmentation details, including estimated household incomes.

These data are made available in several formats, including:

• Public data file with non-confidential and non-proprietary data, and associated user guide
• Data visualization tool
• Summary slide deck 

* Distributed solar is defined here to include residential systems, roof-mounted non-residential systems, and ground-mounted systems up to 5 MW-AC.  Ground-mounted systems larger than 5 MW-AC are covered in Berkeley Lab’s separate U.S. Utility-Scale Solar annual data update.