PacifiCorp-S0027
210 MW storage in Walla Walla, WA · In queue since February 2024 · Proposed COD June 2026
210 MW
Capacity
1
Components
Battery
2y 3m
In Queue
In Progress (unknown study)
IA Status
COD target: 2026
Total Duration
2y 4m
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: 2026-06-01
PacifiCorp-S0027 is a proposed 210 MW battery storage project located in Walla Walla County, Washington. The project, developed by PacifiCorp, entered the PacifiCorp interconnection queue on February 8, 2024, with a proposed commercial operation date of June 1, 2026. The point of interconnection is the Wallula substation.
The project's interconnection agreement status is currently listed as "In Progress (unknown study)". The development has appeared in recent news coverage regarding PacifiCorp's grid modernization efforts in the West region.
Generated from interconnection queue and public data sources
State
WA
County
Walla Walla
Grid Region
Mountain West
Market
—
Developer
—
Utility
PacifiCorp
Entity
PacifiCorp
Service Type
—
Point of Interconnection
Wallula 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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