PSE-101
200 MW storage in King, WA · In queue since April 2021 · Proposed COD September 2028
200 MW
Capacity
1
Components
Battery
5y 3m
In Queue
Suspended
IA Phase
COD target: 2028
Total Duration
7y 5m
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: 2028-09-27
PSE-101 is a proposed 200 MW battery storage project located in King County, Washington. The project, under development by Puget Sound Energy (PSE), consists of a 200 MW battery energy storage system (BESS). It is interconnected to the Puget Sound Energy queue as project PSE-101, with an initial queue entry date of April 15, 2021, and a proposed commercial operation date of January 6, 2024. The interconnection agreement (IA) status is currently listed as suspended.
The project's point of interconnection (POI) is the Berydale 230 kV Substation. The project's status is also listed as suspended.
Generated from interconnection queue and public data sources
Realization risk through commissioning — schedule slippage, construction cost overrun, and COD probability vs the stated window. The diligence view that determines whether the project comes online when promised. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
WA
County
King
Grid Region
Mountain West
Market
—
Developer
—
Utility
Puget Sound Energy
Entity
PSE
Service Type
NRIS
Point of Interconnection
Berrydale 230 kV 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 curtailment risk decomposed by congestion zone and 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, first-year DSCR, and construction cost overrun exposure — what determines whether the deal clears its covenants once online. Projected across price, demand, 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.
No Ask reports yet for this entity.
Ask about Project PSE-101Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
