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United States β€Ί Grid β€Ί Interconnection queues

BATTERY STORAGE Β· ERCOT

Walstrom BESS

Walstrom BESS is a 205 MW battery storage request built and operating in the ERCOT interconnection queue.

Queue statusOperating
  1. PlanningQueued Jul 2021 (completed)
  2. ConsentedJun 2023 (completed)
  3. Construction (completed)
  4. OperatingOct 2025 (current stage)
  5. Closed (not yet reached)

Request details

Queue ID
22INR0540
Grid region
ERCOT (Texas)
Developer
Sealy Power LLC
Connection point (POI)
46220 Peters 138kV
Technology
Battery: 205 MW
Total requested
205 MW
Study phase
IA
Queue status
Operational
Entered queue
8 July 2021
Agreement signed
30 June 2023
Proposed online date
October 2025
Came online
October 2025

Location

No county location in the queue data.

Power plants in Β· Transmission lines in

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