PSE-141
300 MW hybrid in Thurston, WA · In queue since February 2024 · Proposed COD November 2030
300 MW
Capacity
1
Components
Solar
2y 3m
In Queue
Cluster Study
IA Status
COD target: 2030
Total Duration
6y 9m
Interconnection request submitted to ISO/RTO
Project undergoes interconnection studies to assess grid impact.
Typical: 18–36 months
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2030-11-30
PSE-141 is a proposed 300 MW hybrid solar and battery project located in Thurston County, Washington. The project, under development by Puget Sound Energy (PSE), consists of 300 MW of solar generation capacity. It is currently listed as active in the Puget Sound Energy interconnection queue (PSE-141) with a queue entry date of February 16, 2024.
The proposed commercial operation date for PSE-141 is November 30, 2030. The project's interconnection status is currently in the Cluster Study phase, and the point of interconnection is the Tono 115kV Substation. The project has appeared in recent news.
Generated from interconnection queue and public data sources
State
WA
County
Thurston
Grid Region
Mountain West
Market
—
Developer
—
Utility
Puget Sound Energy
Entity
PSE
Service Type
—
Point of Interconnection
Tono 115kV Substation
Data Source
LBNL
- ISO / RTO
- MOUNTAIN_WEST
- Trading Hub
- MID-C
- Hub Confidence
- UNKNOWN
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
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