United States βΊ Grid
OCTARY USA Β· GRID INFRASTRUCTUREThe US electricity grid
The transmission network that moves electricity across the country, and the queue of new power plants and batteries waiting to connect to it.
Transmission lines950,434 km590,572 mi mapped
345 kV and above158,865 kmhigh-voltage backbone
Active queue2,001.0 GW9,187 requests
Agreement signed423.2 GWclosest to being built
Transmission lines
Map every line by voltage, owner and state, from 69 kV local lines to the 765 kV and HVDC backbone.
Interconnection queues
Every request to connect new generation and storage: in study, agreement signed, built or withdrawn.
Active queue by grid region
Capacity waiting to connect in each ISO/RTO market and the non-ISO regions.
- West (non-ISO utilities)1,857 requests Β· 519.1 GW
- ERCOT (Texas)1,986 requests Β· 447.3 GW
- MISO (Midcontinent)1,646 requests Β· 350.1 GW
- CAISO (California)429 requests Β· 188.6 GW
- Southeast (non-ISO utilities)1,067 requests Β· 161.4 GW
- SPP (Southwest Power Pool)692 requests Β· 152.4 GW
- PJM (Mid-Atlantic, Midwest)1,248 requests Β· 140.4 GW
- NYISO (New York)190 requests Β· 27.1 GW
- ISO-NE (New England)72 requests Β· 14.6 GW
Grid by state
Transmission, operating power plants and the active queue in each state.
Sources: HIFLD Electric Power Transmission Lines (August 2025); Lawrence Berkeley National Laboratory, Queued Up (data through end of 2025); U.S. Energy Information Administration, Form EIA-860M.