About the data
The transmission and local lines layer, from an OpenStreetMap snapshot of September 25, 2026. Each segment keeps its reported voltage, operator and circuits.
The data is community-mapped. Use it as context next to plants, substations and queue points, not as a complete network.
- Served
- Snapshot of September 25, 2026
- Coverage
- 687,028 mapped segments in the 50 states and DC
- Licence
- Open Database License (ODbL)
Access
Free for everyone, with no account.
Where it appears: Infrastructure layer.
MCP tools that return it: get_grid_topology. The MCP server is part of Pro; setup is on MCP server.
Sources
- Power lines and cables(opens in a new tab), OpenStreetMap contributors
Periods and update notes for each source are on Data sources.
Known gaps
Limits
- Community-mapped and incomplete. An empty area is not proof of no infrastructure.
- Voltages are never inferred.
Missing values stay missing: a null means the source has no usable record, never zero. Zero and negative values are shown as reported.
Questions it answers
- How complete is OpenStreetMap power line coverage around a given wind project?
- How many USGS and OpenStreetMap geometry records match a given solar project?