PSE-141
300 MW hybrid in Thurston, WA · In queue since February 2024 · Proposed COD November 2030
300 MW
Capacity
1
Components
Solar
2y 5m
In Queue
Cluster Study
IA Phase
COD target: 2030
Total Duration
6y 9m
Study Phase
1
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
Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
WA
County
Thurston
Grid Region
Mountain West
Market
—
Developer
—
Utility
Puget Sound Energy
Entity
PSE
Service Type
NRIS
Point of Interconnection
Tono 115kV Substation
Data Source
LBNL
Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
See the full risk decomposition + scenarios for this project.
Forward generation outlook — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- 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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Ask about Project PSE-141Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
