Solar + storage project G1048, Mason County

Solar + storage project G1048, Mason County is a 300 MW solar + storage request in interconnection study in the West interconnection queue, in Mason County, Washington.

Queue statusIn planning

PlanningQueued Nov 2023 (current stage)
Consented (not yet reached)
Construction (not yet reached)
OperatingTarget Dec 2027 (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: G1048
Grid region: West (non-ISO utilities)
Connection point (POI): Shelton-Fairmont No 4 230 kV line
Location: Mason County, Washington
Technology: Solar: 200 MW · Battery: 100 MW
Total requested: 300 MW
Service type: NRIS and ERIS
Study phase: In Progress (unknown study)
Queue status: Active
Entered queue: 22 November 2023
Proposed online date: December 2027

Location

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

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Other requests in Mason 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