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United States › Grid › Interconnection queues › Idaho

BATTERY STORAGE · WEST

Battery storage project 629, Owyhee County

Battery storage project 629, Owyhee County is a 85.0 MW battery storage request built and operating in the West interconnection queue, in Owyhee County, Idaho, connecting to Idaho Power Company.

Queue statusOperating
  1. PlanningQueued Dec 2021 (completed)
  2. ConsentedJan 2023 (completed)
  3. Construction (completed)
  4. OperatingMar 2025 (current stage)
  5. Closed (not yet reached)

Request details

Queue ID
629
Grid region
West (non-ISO utilities)
Utility / transmission owner
Idaho Power Company
Developer
Idaho Power Company—Power Supply
Connection point (POI)
Hemingway 34.5kV
Location
Owyhee County, Idaho
Technology
Battery: 85.0 MW
Total requested
85.0 MW
Service type
Network resource (NRIS)
Study phase
IA Executed
Queue status
Operational
Entered queue
30 December 2021
Agreement signed
12 January 2023
Proposed online date
March 2025
Came online
March 2025

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