Adams County, WA interconnection queue
10 interconnection applications are pending in Adams County, WA, requesting 923 MW of new generating capacity, as of 15 August 2026. 3 projects have been built here and 46 have been withdrawn since 2007.
Source: interconnection queues published by Avista, 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 Adams County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Solar | 10 | 923 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 3 | 164 MW | 4.9% |
| Still pending | 10 | 923 MW | 16.4% |
| Withdrawn | 46 | 4.8 GW | 75.4% |
| Suspended | 2 | — | 3.3% |
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 |
|---|---|---|---|---|---|
| G0704 | Wind | 400 MW | withdrawn | 2021-09 | BPA |
| CS25-09 | Solar | 375 MW | active | 2025-04 | Avista |
| TCS-15 | Solar | 375 MW | withdrawn | 2021-01 | Avista |
| G0680 | Battery | 300 MW | withdrawn | 2021-07 | BPA |
| CS23-05 | Solar | 300 MW | withdrawn | 2023-04 | Avista |
| 33 | Wind | 250 MW | withdrawn | 2011-02 | Avista |
| G0833 | Solar | 204 MW | withdrawn | 2022-12 | BPA |
| G0745 | Solar | 203 MW | active | 2022-05 | BPA |
| G0679 | Solar | 200 MW | withdrawn | 2021-07 | BPA |
| TCS-05 | Solar | 200 MW | withdrawn | 2018-11 | Avista |
| CS23-08 | Solar | 199 MW | withdrawn | 2023-04 | Avista |
| CS25-14 | Solar | 199 MW | withdrawn | 2025-04 | Avista |
| CS23-04 | Solar | 180 MW | withdrawn | 2023-04 | Avista |
| 43 | Wind | 150 MW | withdrawn | 2014-12 | Avista |
| CS24-03 | Battery | 150 MW | withdrawn | 2024-04 | Avista |
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 |
|---|---|---|---|---|
| Open Range | 3.3 GW | active | BPA | not stated |
| Herman Substation | 39 MW | withdrawn | BPA | not stated |
| East Low 47.5 Pump Project | 5 MW | 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
Adams County ranks #402 of 1,607 US counties by capacity currently queued, and #10 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 Adams 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 Adams County on the map County reports All of Washington