About the data
Every EIA plant with at least one generator or battery reported as operating in the August 2026 EIA-860M, which is provisional. Monthly records join the final 2025 EIA-860 on the exact EIA plant ID and generator ID.
The inventory holds 14,233 plants grouped into 14,225 projects, 529 of them hybrids, in the 50 states, DC and Puerto Rico. Records include nameplate capacity, technology, tracking, battery energy capacity, operating dates and the balancing-authority code each unit reports.
Every other dataset joins to a plant through its exact EIA plant and generator IDs, so the inventory is the place to start a screen by state, fuel, ISO, size or hybrid status.
- Served
- August 2026 EIA-860M, published September 24, 2026 and provisional; 2025 final EIA-860
- Coverage
- 14,233 plants grouped into 14,225 projects, 529 of them hybrids; 50 states, DC and Puerto Rico
- Archive
- EIA-860 years 2009 to 2025 for dated capacity
- Updates
- Monthly; InfraMap reviews each release before replacing the inventory
Access
Free for everyone, with no account.
Where it appears: Plants layer, Details tab.
MCP tools that return it: search_energy_projects, get_project_details, get_project_profile, query_analyst_store. The MCP server is part of Pro; setup is on MCP server.
Sources
- EIA-860 Annual Electric Generator Report(opens in a new tab), U.S. Energy Information Administration
- EIA-860M Monthly Generator Inventory(opens in a new tab), U.S. Energy Information Administration
Periods and update notes for each source are on Data sources.
Known gaps
- Plant status is as of the latest EIA-860M month, not live.
- EIA operating status is a provisional monthly survey report. It does not establish current dispatch, interconnection rights or deliverability.
- Combined nameplate is equipment capacity, not a simultaneous export or interconnection limit.
- Standby, out-of-service, proposed and retired units are excluded, so historical cohorts lean toward survivors.
Missing values stay missing: a null means the source has no usable record, never zero. Zero and negative values are shown as reported.
How InfraMap uses it
How InfraMap joins, groups and calculates with this dataset is on Methodology.
Questions it answers
- Which operating battery projects in Texas are larger than 200 MW?
- How much operating solar capacity does each ISO have?
- Which hybrid solar and battery projects operate in Arizona?