BPA-G0908
500 MW hybrid in Umatilla, OR · In queue since July 2023 · Proposed COD December 2025
500 MW
Capacity
2
Components
Solar + Battery
2y 10m
In Queue
In Progress (unknown study)
IA Status
COD target: 2025
Total Duration
2y 5m
Schedule
4 months past proposed COD
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: 2025-12-31
BPA-G0908 is a proposed 500 MW hybrid solar and battery project located in Umatilla County, Oregon. The development project consists of 300 MW of solar capacity coupled with 200 MW of battery storage. Interconnection is being sought with the Bonneville Power Administration (BPA) via the Longhorn Substation. The project entered the BPA interconnection queue on July 17, 2023, with a proposed commercial operation date of December 31, 2025. The interconnection agreement (IA) status is currently listed as "In Progress (unknown study)".
This proposed project has been the subject of recent news coverage related to regulatory matters.
Generated from interconnection queue and public data sources
State
OR
County
Umatilla
Grid Region
Mountain West
Market
—
Developer
—
Utility
Bonneville Power Administration
Entity
BPA
Service Type
—
Point of Interconnection
Longhorn 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.
Last updated 2026-03-31
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