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United States › Grid › Interconnection queues › Idaho

BATTERY STORAGE · WEST

Battery storage project T2-073, Owyhee County

Battery storage project T2-073, Owyhee County is a 175 MW battery storage request in interconnection study in the West interconnection queue, in Owyhee County, Idaho, connecting to PacifiCorp.

Queue statusIn planning
  1. PlanningQueued Sep 2025 (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingTarget Dec 2027 (not yet reached)
  5. 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
T2-073
Grid region
West (non-ISO utilities)
Utility / transmission owner
PacifiCorp
Connection point (POI)
Hemingway substation
Location
Owyhee County, Idaho
Technology
Battery: 175 MW
Total requested
175 MW
Service type
Network resource (NRIS)
Queue status
Active
Entered queue
12 September 2025
Proposed online date
December 2027

Location

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

Power plants in Idaho · Transmission lines in Idaho

Other requests in Owyhee 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