Thurston County, WA interconnection queue
2 interconnection applications are pending in Thurston County, WA, requesting 427 MW of new generating capacity, as of 15 August 2026. 0 projects have been built here and 11 have been withdrawn since 2017.
Source: interconnection queues published by PSE. 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 Thurston County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Solar | 1 | 300 MW |
| Battery | 1 | 127 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 0 | 0 MW | 0.0% |
| Still pending | 2 | 427 MW | 14.3% |
| Withdrawn | 11 | 1.6 GW | 78.6% |
| Suspended | 1 | — | 7.1% |
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 |
|---|---|---|---|---|---|
| G0921 | Wind | 718 MW | withdrawn | 2023-09 | BPA |
| 141 | Solar | 300 MW | active | 2024-02 | PSE |
| 53 | Solar | 198 MW | withdrawn | 2017-10 | PSE |
| 102 | Battery | 150 MW | suspended | 2021-04 | PSE |
| 112 | Battery | 127 MW | active | 2021-06 | PSE |
| 132 | Battery | 127 MW | withdrawn | 2022-05 | PSE |
| 63 | Solar | 105 MW | withdrawn | 2018-08 | PSE |
| 118 | Battery | 100 MW | withdrawn | 2021-08 | PSE |
| 134 | Battery | 100 MW | withdrawn | 2022-08 | PSE |
| 82 | Battery | 100 MW | withdrawn | 2020-05 | PSE |
| 89 | Battery | 100 MW | withdrawn | 2020-08 | PSE |
| 62 | Battery | 40 MW | withdrawn | 2018-08 | PSE |
| G0942 | Battery | 20 MW | withdrawn | 2023-09 | BPA |
| G0830 | Battery | 20 MW | withdrawn | 2022-12 | BPA |
Large-load connection requests in this county
Requests to connect large new demand — data centres, industry, electrification — as distinct from generation. 3 recorded here.
| Request | Capacity | Status | Queue | Stated end use |
|---|---|---|---|---|
| Taylor Substation | 25 MW | active | BPA | not stated |
| Upriver McKenzie Reliability Improvement Project | 0 MW | active | BPA | not stated |
| Network Connection, 230 kV loop line | — | active | 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
Thurston County ranks #670 of 1,607 US counties by capacity currently queued, and #20 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 Thurston 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 Thurston County on the map County reports All of Washington