Project PSE-103 — Project Summary

Queue ID
PSE-103
Capacity
200 MW
Technology
Battery
Status
suspended
Location
Skagit, WA
Region
West
Developer
IA Status
Suspended

PSE-103

PSE-103BetaSuspendedBatteryPSELBNL

200 MW storage in Skagit, WA · In queue since April 2021 · Proposed COD September 2028

BA: BPATNERC: WECCRC: RCW

200 MW

Capacity

1

Components

Battery

5y 3m

In Queue

Suspended

IA Phase

COD target: 2028

Interconnection

Total Duration

7y 5m

Suspended38%
Queue EntryApr 15, 2021

Interconnection request submitted to ISO/RTO

Interconnection Study

Project undergoes interconnection studies to assess grid impact.

Typical: 18–36 months

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2028-09-01

About

PSE-103 is a proposed 200 MW battery storage project located in King County, Washington. The project, developed by Puget Sound Energy (PSE), entered the PSE interconnection queue on April 15, 2021, with a proposed commercial operation date of January 6, 2024. The point of interconnection is the Sedro Wooley 230 kV Substation.

The project's interconnection agreement (IA) has been executed.

Generated from interconnection queue and public data sources

Development Risk

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.

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P(COD within window)
Cost overrun probability
Schedule slippage vs plan
Project Details

State

WA

County

Skagit

Grid Region

Mountain West

Market

Developer

Utility

Puget Sound Energy

Entity

PSE

Service Type

NRIS

Point of Interconnection

Sedro Wooley 230 kV Substation

Data Source

LBNL

Risk Analytics

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.

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See the full risk decomposition + scenarios for this project.

Climate hazards (8+)
Generation variability (P10/P50/P90)
Offtake + transmission counterparty
Generation Forecast

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.

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10-year P50 forecast
Curtailment risk by node
Weather + policy scenarios
Financial Forecast

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.

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See the full revenue + DSCR projection for this project.

First-year DSCR
Cost overrun probability
Price + demand scenarios
Market Context
Approximate
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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Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.