United States βΊ Grid βΊ Interconnection queues
OCTARY USA Β· INTERCONNECTION QUEUESNuclear interconnection queue in PJM (Mid-Atlantic, Midwest)
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 This shows every request: active, built and withdrawn.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
| Project | Capacity | Status |
|---|---|---|
| Nuclear project AH1-695, Dauphin County Nuclear Β· Constellation Energy Generation, LLC |
859 MW | In study |
| Nuclear project AH1-710, Salem County Nuclear Β· PSEG Nuclear LLC |
257 MW | In study |
| Nuclear project AH1-714, Lasalle County Nuclear Β· Constellation Energy Generation, LLC |
174 MW | In study |
| Nuclear project AH1-698, Will County Nuclear Β· Constellation Energy Generation, LLC |
130 MW | In study |
| Nuclear project AH1-702, Ogle County Nuclear Β· Constellation Energy Generation, LLC |
88.0 MW | In study |
| Peach Bottom Units #2 & #3 Nuclear |
44.0 MW | Agreement signed |
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.
- Southeast (non-ISO utilities)27 Β· 3,736 MW
- West (non-ISO utilities)6 Β· 2,935 MW
- MISO (Midcontinent)8 Β· 2,170 MW
- PJM (Mid-Atlantic, Midwest)6 Β· 1,552 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 A request is a proposal to connect, not a commitment to build: historically most are withdrawn.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)