Lewis County, Washington — Interconnection Projects
The interXdata warehouse tracks 30 interconnection projects in Lewis, Washington, representing 5,151 MW of requested capacity.
30Total projects
2Active
16Operational
12Withdrawn
5,151 MWRequested capacity
Technology mix
| Technology | Projects | Requested capacity |
|---|---|---|
| Gas | 6 | 1,991 MW |
| Other | 14 | 1,640 MW |
| Wind | 8 | 1,219 MW |
| Battery | 2 | 300 MW |
Projects
| Project | Queue ID | Technology | Capacity | Status | Location |
|---|---|---|---|---|---|
| 1100MW Paul | G9 | Gas | 1,100.0 MW | withdrawn | Lewis, Washington |
| Transalta Centralia Generation | 3845_2 | Other | 729.9 MW | operational | Lewis, Washington |
| WA Queue Project G0595 — Wind in Lewis, Washington | G0595 | Wind | 307.0 MW | withdrawn | Lewis, Washington |
| WA Queue Project G1007 — Battery in Lewis, Washington | G1007 | Battery | 300.0 MW | withdrawn | Lewis, Washington |
| Fortescue | L0568 | Other | 300.0 MW | withdrawn | Lewis, Washington |
| Centralia Generation Addition | G20 | Gas | 248.0 MW | operational | Lewis, Washington |
| Chehalis Generating Facility | 55662_CT1 | Gas | 198.9 MW | operational | Lewis, Washington |
| Chehalis Generating Facility | 55662_CT2 | Gas | 198.9 MW | operational | Lewis, Washington |
| Chehalis Generating Facility | 55662_CA | Gas | 195.5 MW | operational | Lewis, Washington |
| WA Queue Project G0769 — Wind in Lewis, Washington | G0769 | Wind | 170.0 MW | withdrawn | Lewis, Washington |
| WA Queue Project G0718 — Wind in Lewis, Washington | G0718 | Wind | 160.0 MW | withdrawn | Lewis, Washington |
| Mossyrock | 3918_51 | Other | 150.0 MW | operational | Lewis, Washington |
| WA Queue Project G0315 — Wind in Lewis, Washington | G0315 | Wind | 150.0 MW | withdrawn | Lewis, Washington |
| Mossyrock | 3918_52 | Other | 150.0 MW | operational | Lewis, Washington |
| WA Queue Project G0515 — Wind in Lewis, Washington | G0515 | Wind | 150.0 MW | withdrawn | Lewis, Washington |
| West Queue Project 46 — Wind in Lewis, Washington | 46 | Wind | 136.8 MW | operational | Lewis, Washington |
| WA Queue Project G0313 — Wind in Lewis, Washington | G0313 | Wind | 128.0 MW | withdrawn | Lewis, Washington |
| Centralia Generation | G13 | Gas | 50.0 MW | operational | Lewis, Washington |
| Salzer Valley Substation | L0394 | Other | 50.0 MW | active | Lewis, Washington |
| Mayfield | 3917_41 | Other | 40.5 MW | operational | Lewis, Washington |
| Mayfield | 3917_42 | Other | 40.5 MW | operational | Lewis, Washington |
| Mayfield | 3917_44 | Other | 40.5 MW | operational | Lewis, Washington |
| Mayfield | 3917_43 | Other | 40.5 MW | operational | Lewis, Washington |
| Cowlitz Falls | 7427_U#2 | Other | 35.0 MW | operational | Lewis, Washington |
| Cowlitz Falls | 7427_U#1 | Other | 35.0 MW | operational | Lewis, Washington |
| Packwood | 3929_1 | Other | 27.5 MW | operational | Lewis, Washington |
| West Queue Project 50 — Wind in Lewis, Washington | 50 | Wind | 17.2 MW | withdrawn | Lewis, Washington |
| WA Queue Project G0482 — Other in Lewis, Washington | G0482 | Other | 1.0 MW | withdrawn | Lewis, Washington |
| WA Queue Project G1072 — Battery in Lewis, Washington | G1072 | Battery | 0.0 MW | active | Lewis, Washington |
| Transalta Industrial Park Tap | L0378 | Other | 0.0 MW | withdrawn | Lewis, Washington |
Top developers
| Developer (canonical) | Projects | Capacity |
|---|---|---|
| Public Utility District No. 1 of Cowlitz County | 2 | 300 MW |
| TransAlta Utilities Cooperative | 2 | 298 MW |
| Cogentrix Energy, Inc. | 1 | 1,100 MW |
| City of Centralia | 1 | 50 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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