Poseidon Storage

Poseidon Storage is a 80.0 MW battery storage request in interconnection study in the PJM interconnection queue, in Fayette County, Pennsylvania, connecting to APS.

Queue statusIn planning

PlanningQueued Feb 2025 (current stage)
Consented (not yet reached)
Construction (not yet reached)
OperatingTarget Dec 2024 (not yet reached)
Closed (not yet reached)

Studies assess what grid upgrades the project would need and who pays for them. A signed interconnection agreement is the main step before construction.

Request details

Queue ID: AH1-249
Grid region: PJM (Mid-Atlantic, Midwest)
Utility / transmission owner: APS
Developer: Poseidon Energy, LLC
Connection point (POI): Lardin - Lake Lynn 138kV
Location: Fayette County, Pennsylvania
Technology: Battery: 80.0 MW
Total requested: 80.0 MW
Service type: Network resource (NRIS)
Study phase: System Impact Study
Queue status: Active
Entered queue: 4 February 2025
Proposed online date: December 2024

Location

Marker shows the centre of Fayette County; the queue data does not give exact sites.

Power plants in Pennsylvania · Transmission lines in Pennsylvania

Other requests in Fayette County

Source: Lawrence Berkeley National Laboratory, Queued Up, data through end of 2025, compiled from ISO/RTO and utility queues. Check the grid operator's own queue for the latest status. Report a problem