PSE-60
200 MW storage in Pierce, WA · In queue since August 2018 · Proposed COD September 2028
200 MW
Capacity
1
Components
Battery
7y 11m
In Queue
IA Executed
IA Phase
COD target: 2028
Total Duration
10y 1m
Interconnection request submitted to ISO/RTO
Project undergoes interconnection studies to assess grid impact.
Typical: 18–36 months
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2028-09-15
PSE-60 is a proposed 200 MW battery storage project located in Pierce County, Washington. The project, developed by Puget Sound Energy (PSE), entered the PSE interconnection queue on August 15, 2018, and has a proposed commercial operation date of December 31, 2025. The project's interconnection agreement (IA) has been executed. The point of interconnection is the Fredrickson Plant 115kV Substation.
The proposed project consists of 200 MW of battery storage capacity. It is currently listed as active in the interconnection queue. The project has appeared in recent news coverage regarding energy storage development in the Pacific Northwest.
Generated from interconnection queue and public data sources
Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
WA
County
Pierce
Grid Region
Mountain West
Market
—
Developer
—
Utility
Puget Sound Energy
Entity
PSE
Service Type
ERIS
Point of Interconnection
Fredrickson Plant 115kV Substation
Data Source
LBNL
Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. 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 — first-year production estimate and 10-year P50 trajectory, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. 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. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. 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-60Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
