BPA-G0923
300 MW hybrid in Walla Walla, WA · In queue since September 2023 · Proposed COD September 2027
300 MW
Capacity
3
Components
Solar + Wind + Battery
2y 10m
In Queue
In Progress (unknown study)
IA Phase
COD target: 2027
Total Duration
4 years
Study Phase
Transition Cluster
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: 2027-09-15
BPA-G0923 is a proposed 300 MW hybrid energy project consisting of 100 MW of solar, 100 MW of wind, and 100 MW of battery storage. The project is located in Walla Walla County, Washington, and is interconnected to the Bonneville Power Administration (BPA) grid. It entered the BPA interconnection queue on September 5, 2023, with a proposed commercial operation date of September 15, 2027.
The project's interconnection agreement (IA) status is listed as "In Progress (unknown study)". The point of interconnection (POI) is the Lower Monumental _x0013_ Little Goose No 1 500 kV line, with alternates including the Lower Monumental _x0013_ Little Goose No 2 500 kV line and the Little Goose _x0013_ Central Ferry No 2 500 kV line.
Generated from interconnection queue and public data sources
Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
WA
County
Walla Walla
Grid Region
Mountain West
Market
—
Developer
—
Utility
—
Entity
BPA
Service Type
NRIS/ERIS
Point of Interconnection
Lower Monumental – Little Goose No 1 500 kV line. Alternates: Lower Monumental – Little Goose No 2 500 kV line; Little Goose – Central Ferry No 2 500 kV line
Data Source
LBNL
Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. 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 — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. 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.
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Ask about Project BPA-G0923Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.