Columbia County, WA interconnection queue
4 interconnection applications are pending in Columbia County, WA, requesting 557 MW of new generating capacity, as of 15 August 2026. 2 projects have been built here and 12 have been withdrawn since 2001.
Source: interconnection queues published by BPA. Parsed and normalised by Watt Street. Data as of 15 August 2026. A queued project is a request, not a commitment.
What is waiting in Columbia County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Wind | 3 | 407 MW |
| Solar | 1 | 150 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 2 | 234 MW | 11.1% |
| Still pending | 4 | 557 MW | 22.2% |
| Withdrawn | 12 | 1.9 GW | 66.7% |
| Suspended | 0 | — | 0.0% |
Withdrawal is the ordinary outcome of an interconnection application nationally, not a sign of a problem in this county. Most withdrawals are a developer testing a site and moving on.
The largest projects on file
| Project | Fuel | Capacity | Status | Filed | Queue |
|---|---|---|---|---|---|
| G0299 | Wind | 300 MW | withdrawn | 2007-11 | BPA |
| G0298 | Wind | 300 MW | withdrawn | 2007-11 | BPA |
| 300MW Lower Monumental-Starbuck | Wind | 300 MW | withdrawn | 2001-09 | BPA |
| Lower Snake Phase 1 | Wind | 250 MW | active | 2007-08 | BPA |
| G1070 | Solar | 220 MW | withdrawn | 2024-08 | BPA |
| 122 | Wind | 211 MW | completed | 2007-02 | PacifiCorp |
| G0847 | Solar | 150 MW | active | 2023-02 | BPA |
| Hopkins Ridge Wind | Wind | 150 MW | active | 2002-05 | BPA |
| 119 | Solar | 150 MW | withdrawn | 2021-08 | PSE |
| 137 | Solar | 150 MW | withdrawn | 2022-11 | PSE |
| 13 | Wind | 140 MW | withdrawn | 2001-09 | PacifiCorp |
| 115 | Wind | 140 MW | withdrawn | 2021-08 | PSE |
| XX | Solar | 92 MW | withdrawn | 2018-08 | PSE |
| 14 | Wind | 70 MW | withdrawn | 2001-09 | PacifiCorp |
| 115 | Wind | 40 MW | withdrawn | 2006-12 | PacifiCorp |
Large-load connection requests in this county
Requests to connect large new demand — data centres, industry, electrification — as distinct from generation. 10 recorded here.
| Request | Capacity | Status | Queue | Stated end use |
|---|---|---|---|---|
| CAC Green H2 Facility | 1.6 GW | withdrawn | BPA | not stated |
| PARS - Clatskanie | 680 MW | active | BPA | not stated |
| Starbuck 500 MW | 500 MW | active | BPA | not stated |
| PW1 & PW2 | 250 MW | active | BPA | not stated |
| PARS - Betsy Johnson Substation (POD 4514) | 240 MW | active | BPA | not stated |
| PW1 & PW2 | 105 MW | active | BPA | not stated |
| Forge Ahead 105 MW | 100 MW | withdrawn | BPA | not stated |
| Armstrong Project | 99 MW | active | BPA | not stated |
| PARS - St. Helens Substation (POD 3043) | 70 MW | active | BPA | not stated |
| Dutch Canyon Substation | 50 MW | energized | BPA | not stated |
494 of the 545 large-load requests we hold state no end use at all, so most cannot be attributed to any industry. Where this table says “not stated”, that is the filing’s own silence, not our omission.
How this county ranks
Columbia County ranks #577 of 1,607 US counties by capacity currently queued, and #16 of 30 in Washington.
Other Washington counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Benton County | 20 | 10.5 GW |
| Yakima County | 14 | 6.5 GW |
| Klickitat County | 23 | 6.2 GW |
| Grant County | 13 | 3.7 GW |
| Douglas County | 8 | 3.6 GW |
| Walla Walla County | 8 | 1.7 GW |
| Lincoln County | 8 | 1.6 GW |
| Spokane County | 11 | 973 MW |
Go deeper on Columbia County
The interactive map plots every one of these applications, and a generated county report puts them in a sourced PDF with the date each figure was true on every page.
Open Columbia County on the map County reports All of Washington