Cowiche
18968 Summitview Road, Tieton, WA 98947Plant Summary Information
Cowiche is ranked #66 out of 70 hydroelectric power plants in Washington in terms of total annual net electricity generation.
Cowiche is comprised of 1 generator and generated 1.3 GWh during the 3-month period between July 2025 to October 2025.
| Plant Name | Cowiche |
|---|---|
| Utility Name | Yakima-Tieton Irrigation Dist |
| Location | Yakima County, WA |
| Initial Operation Date | March 1987 |
| Last Update | Oct 2025 |
| Annual Generation | 3.4 GWh |
| Annual Consumption | 11.5 k MMBtu |
| Ranked #9,634 out of 13,301 Power Plants Nationwide | |
| Ranked #1,179 out of 1,316 Water Power Plants Nationwide | |
| Ranked #121 out of 132 Washington Power Plants | |
| Ranked #66 out of 70 Washington Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for Cowiche
Monthly Plant Fuel Consumption for Cowiche
Cowiche Details
| Summary Information | |
|---|---|
| Plant Name | Cowiche (50423) |
| Plant Address | 18968 Summitview Road, Tieton, WA 98947 |
| Utility | Yakima-Tieton Irrigation Dist (21086) |
| Latitude, Longitude | 46.69263, -120.73719 |
| Generation Dates on File | Jan 2001 to Oct 2025 |
| Initial Operation Date | March 1987 |
| Annual Generation | 3.4 GWh |
| Fuel Types | Water |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | Yes |
| FERC Small Power Producer Docket Number | 85-587-000 |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | PacifiCorp - West (PACW) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Tieton River |
| Ash Impoundment | |
| Transmission / Distribution Owner | PacifiCorp (14354) WA |
| Grid Voltage | 144.00 kV |
| Energy Storage | No |
Generator 983 Details Operating March 1987
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.7 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 1.6 MW |
| Winter Capacity | 1.6 MW |
| Minimum Load | 1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | March 1987 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 10M |
Cowiche Plant Owners
| Owner Name | Address | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Water.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #1169 | Indian Orchard | Indian Orchard, MA | 3.5 GWh |
| #1170 | Lower Village Water Power Project | Claremont, NH | 3.5 GWh |
| #1171 | Oswego Falls West | Fulton, NY | 3.4 GWh |
| #1172 | Yaleville | Norfolk, NY | 3.4 GWh |
| #1173 | Pine View Dam | Ogden, UT | 3.4 GWh |
| #1174 | Cottonwood | Lone Pine, CA | 3.4 GWh |
| #1175 | Boyds Mill Hydro | Ware Shoals, SC | 3.4 GWh |
| #1176 | Fort Miller Hydroelectric Facility | Northumberland, NY | 3.4 GWh |
| #1177 | Koyle Ranch Hydroelectric Project | Gooding, ID | 3.4 GWh |
| #1178 | AJMS, LLC | Shoshone, ID | 3.4 GWh |
| #1180 | Thundermist Hydro | Providence, RI | 3.3 GWh |
| #1181 | Moccasin Low Head Hydro Project | Moccasin, CA | 3.3 GWh |
| #1182 | Big Thompson | Loveland, CO | 3.3 GWh |
| #1183 | Turlock Lake | Hickman, CA | 3.2 GWh |
| #1184 | Potholes East Canal 66.0 | Pasco, WA | 3.2 GWh |
| #1185 | Lower Beaver Falls Project | Beaver Falls, NY | 3.2 GWh |
| #1186 | Ford Hydro LP | Weippe, ID | 3.1 GWh |
| #1187 | Lake Creek Dam | Heber City, UT | 3.1 GWh |
| #1188 | Alice Falls Hydro Project | Keeseville, NY | 3.0 GWh |
| #1189 | Center Falls | Greenwich, NY | 3.0 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Cowiche.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Big Horn Wind II | Bickleton, WA | 114.3 GWh | 57.3 mi |
| Camas Solar Project | Ellensburg, WA | 10.7 GWh | 21.4 mi |
| Crystal Mountain | Greenwater, WA | 560.0 MWh | 39.3 mi |
| Goose Prairie Solar | Moxee, WA | 182.2 GWh | 26.2 mi |
| Orchard Avenue 1 | Yakima, WA | 2.9 GWh | 7.2 mi |
| Ostrea Solar, LLC | Moxee, WA | 68.5 GWh | 37.7 mi |
| Packwood | Packwood, WA | 73.8 GWh | 40 mi |
| PEC Headworks | Moses Lake, WA | 17.7 GWh | 51.1 mi |
| Penstemon Solar Project | Ellensburg, WA | 11.2 GWh | 21.4 mi |
| Priest Rapids | Mattawa, WA | 4.9 TWh | 39.5 mi |
| Rock Island | Wenatchee, WA | 2.6 TWh | 54.4 mi |
| Roza | Yakima, WA | 38.2 GWh | 13.3 mi |
| Sagebrush Power Partners | Ellensburg, WA | 277.0 GWh | 30.7 mi |
| Swauk Wind LLC | Thorp, WA | 2.9 GWh | 30.9 mi |
| Tieton Dam Hydro Electric Project | Rimrock, WA | 24.2 GWh | 18.7 mi |
| Urtica Solar Project | Ellensburg, WA | 11.4 GWh | 28.8 mi |
| Vantage Wind Energy LLC | Ellensburg, WA | 253.2 GWh | 31.9 mi |
| Wanapum | Beverly, WA | 5.4 TWh | 38.4 mi |
| Washington Wind | Goldendale, WA | 379.0 GWh | 56.3 mi |
| Wild Horse | Ellensburg, WA | 613.8 GWh | 34.5 mi |