United States βΊ Grid βΊ Interconnection queues βΊ Pennsylvania
OCTARY USA Β· INTERCONNECTION QUEUESBattery storage interconnection queue in Pennsylvania
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 This shows every request: active, built and withdrawn.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 |
|---|---|---|
| Shallow Seam BESS Battery storage Β· Shallow Seam Energy Storage, LLC |
400 MW | In study |
| Battery storage project AH2-103, Fayette County Battery storage |
200 MW | In study |
| Erie East Energy Battery storage |
160 MW | Paused / redesign |
| Energy Mountain Battery storage |
150 MW | Paused / redesign |
| Battery storage project AG2-621, Beaver County Battery storage Β· ACE Development Company, LLC |
150 MW | In study |
| Battery storage project AI1-181, Venango County Battery storage |
140 MW | In study |
| Battery storage project AI1-188, Erie County Battery storage |
130 MW | In study |
| Battery storage project AH2-335, York County Battery storage |
130 MW | In study |
| Battery storage project AJ1-016, Cambria County Battery storage |
100 MW | In study |
| Battery storage project AH2-422, Westmoreland County Battery storage |
83.0 MW | In study |
| Poseidon Storage Battery storage Β· Poseidon Energy, LLC |
80.0 MW | In study |
| Lafayette Storage Battery storage Β· Lafayette Energy, LLC |
60.0 MW | In study |
| Battery storage project AH2-420, Crawford County Battery storage |
50.0 MW | In study |
| Battery storage project AH2-244, Allegheny County Battery storage |
25.0 MW | In study |
| Battery storage project AH2-245, Allegheny County Battery storage |
25.0 MW | In study |
| Momentum Gratz Battery storage |
20.0 MW | Paused / redesign |
| Fayette Energy Facility Battery storage |
20.0 MW | Agreement signed |
| Ontelaunee Power Generating Plant Battery storage |
20.0 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.
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 A request is a proposal to connect, not a commitment to build: historically most are withdrawn.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)