United States βΊ Grid βΊ Interconnection queues
OCTARY USA Β· INTERCONNECTION QUEUESHydro interconnection queue in Southeast (non-ISO utilities)
Before a new power plant or battery can connect to the US grid, it joins a queue for studies and an interconnection agreement. Most requests never get built. This shows every request: active, built and withdrawn.
Map
Requests
Capacity in the queue by state
Click a state to drill down.
By grid region
ISO/RTO markets and the non-ISO West and Southeast.
- West (non-ISO utilities)16 Β· 1,697 MW
- Southeast (non-ISO utilities)23 Β· 410 MW
- MISO (Midcontinent)5 Β· 110 MW
- PJM (Mid-Atlantic, Midwest)1 Β· 51.0 MW
- CAISO (California)2 Β· 5.0 MW
Requests by year joined
Capacity of requests in this view, by the year they entered the queue. Click a year.
Source: Rand, J. et al., Queued Up, Lawrence Berkeley National Laboratory, data through end of 2025. Compiled from the queues of the 7 ISO/RTOs and dozens of non-ISO utilities. A request is a proposal to connect, not a commitment to build: historically most are withdrawn. Capacity is the requested interconnection size; hybrids include the storage component. Transmission lines Β· Planned power plants (EIA)