BPA-G0688
1,000 MW hybrid in Benton, WA · In queue since August 2021 · Proposed COD December 2025
1,000 MW
Capacity
2
Components
Solar + Battery
4y 9m
In Queue
In Progress (unknown study)
IA Status
COD target: 2025
Total Duration
4y 4m
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-G0688 is a proposed 1000 MW hybrid solar and battery project located in Benton County, Washington. The development project, consisting of 500 MW of solar and 500 MW of battery storage, is in the Bonneville Power Administration (BPA) interconnection queue, with an entry date of August 26, 2021. The proposed commercial operation date is December 31, 2025.
The interconnection agreement (IA) status for BPA-G0688 is listed as "In Progress (unknown study)". The point of interconnection (POI) is the Midway Substation 230 kV, directly into a new 230 kV bay. The project has appeared in recent news coverage regarding energy development in the Pacific Northwest.
Generated from interconnection queue and public data sources
State
WA
County
Benton
Grid Region
Mountain West
Market
—
Developer
—
Utility
Bonneville Power Administration
Entity
BPA
Service Type
—
Point of Interconnection
Midway Substation 230 kV, directly into a new 230 kV bay.
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.
