Columbia County, Washington — Interconnection Projects
The interXdata warehouse tracks 34 interconnection projects in Columbia, Washington, representing 5,718 MW of requested capacity.
34Total projects
7Active
16Operational
11Withdrawn
5,718 MWRequested capacity
Technology mix
| Technology | Projects | Requested capacity |
|---|---|---|
| Other | 14 | 3,032 MW |
| Wind | 16 | 2,417 MW |
| Solar+Battery | 2 | 269 MW |
| Solar | 2 | 0 MW |
Projects
| Project | Queue ID | Technology | Capacity | Status | Location |
|---|---|---|---|---|---|
| CAC Green H2 Facility | L0555 | Other | 1,600.0 MW | withdrawn | Columbia, Washington |
| WA Queue Project G0299 — Wind in Columbia, Washington | G0299 | Wind | 300.0 MW | withdrawn | Columbia, Washington |
| WA Queue Project G0298 — Wind in Columbia, Washington | G0298 | Wind | 300.0 MW | withdrawn | Columbia, Washington |
| 300MW Lower Monumental-Starbuck | G77 | Wind | 300.0 MW | withdrawn | Columbia, Washington |
| Tucannon River Wind Farm | 58571_1 | Wind | 266.8 MW | operational | Columbia, Washington |
| Lower Snake Phase 1 | G0284 | Wind | 250.0 MW | operational | Columbia, Washington |
| PW1 & PW2 | L0610 | Other | 250.0 MW | active | Columbia, Washington |
| West Queue Project 122 — Wind in Columbia, Washington | 122 | Wind | 210.6 MW | operational | Columbia, Washington |
| West Queue Project G1086 — Solar+Battery in Columbia, Washington | G1086 | Solar+Battery | 177.0 MW | active | Columbia, Washington |
| Marengo Wind Plant | 56466_1 | Wind | 156.0 MW | operational | Columbia, Washington |
| Hopkins Ridge Wind | G100 | Wind | 150.0 MW | operational | Columbia, Washington |
| Hopkins Ridge Wind | 56255_1 | Wind | 149.4 MW | operational | Columbia, Washington |
| West Queue Project 13 — Wind in Columbia, Washington | 13 | Wind | 140.4 MW | withdrawn | Columbia, Washington |
| Little Goose | 3926_1 | Other | 135.0 MW | operational | Columbia, Washington |
| Little Goose | 3926_3 | Other | 135.0 MW | operational | Columbia, Washington |
| Little Goose | 3926_5 | Other | 135.0 MW | operational | Columbia, Washington |
| Little Goose | 3926_2 | Other | 135.0 MW | operational | Columbia, Washington |
| Little Goose | 3926_4 | Other | 135.0 MW | operational | Columbia, Washington |
| Little Goose | 3926_6 | Other | 135.0 MW | operational | Columbia, Washington |
| PW1 & PW2 | L0609 | Other | 105.0 MW | active | Columbia, Washington |
| Forge Ahead 105 MW | L0602 | Other | 105.0 MW | withdrawn | Columbia, Washington |
| West Queue Project XX — Solar+Battery in Columbia, Washington | XX | Solar+Battery | 91.8 MW | withdrawn | Columbia, Washington |
| Marengo Wind Plant | 56466_2 | Wind | 78.0 MW | operational | Columbia, Washington |
| West Queue Project 14 — Wind in Columbia, Washington | 14 | Wind | 70.2 MW | withdrawn | Columbia, Washington |
| Dutch Canyon Substation | L0593 | Other | 49.5 MW | active | Columbia, Washington |
| Dayton Substation | L0438 | Other | 40.0 MW | withdrawn | Columbia, Washington |
| Diesel Refinery Additional Load | L0591 | Other | 38.0 MW | active | Columbia, Washington |
| Donald Nys Substation | L0592 | Other | 35.0 MW | active | Columbia, Washington |
| West Queue Project 856 — Wind in Columbia, Washington | 856 | Wind | 23.4 MW | operational | Columbia, Washington |
| West Queue Project 857 — Wind in Columbia, Washington | 857 | Wind | 7.8 MW | withdrawn | Columbia, Washington |
| Hopkins Ridge Wind | 56255_2 | Wind | 7.2 MW | operational | Columbia, Washington |
| Hopkins Ridge Addition | G0274 | Wind | 7.0 MW | operational | Columbia, Washington |
| WA Queue Project G1070 — Solar in Columbia, Washington | G1070 | Solar | 0.0 MW | withdrawn | Columbia, Washington |
| WA Queue Project G0847 — Solar in Columbia, Washington | G0847 | Solar | 0.0 MW | active | Columbia, Washington |
Top developers
| Developer (canonical) | Projects | Capacity |
|---|---|---|
| PacifiCorp | 4 | 445 MW |
| Puget Sound Energy | 3 | 407 MW |
| Clatskanie People's Utility District | 3 | 393 MW |
| Columbia River People's Utility District | 3 | 1,684 MW |
| Columbia Rural Electric Association | 1 | 40 MW |
| RES North America | 1 | 300 MW |
| City of Richland, Washington | 1 | 105 MW |
Explore related data
Source last checked2026-07-31
Data last materially changed2026-08-27
Page data generated2026-08-27
Provenance: bpa-oasis; U.S. EIA — Form EIA-860M generator inventory (operating + planned); Lawrence Berkeley National Laboratory — Queued Up interconnection dataset. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.
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