Lower Granite
885 Almota Ferry Road, Pomeroy, WA 99347Plant Summary Information
Lower Granite is ranked #31 out of 1,369 hydroelectric power plants nationwide in terms of total annual net electricity generation.
Lower Granite is comprised of 6 generators and generated 345.8 GWh during the 3-month period between October 2024 to January 2025.
| Plant Name | Lower Granite |
|---|---|
| Utility Name | USACE Northwestern Division |
| Location | Whitman County, WA |
| Initial Operation Date | April 1975 |
| Last Update | Jan 2025 |
| Annual Generation | 1.3 TWh |
| Annual Consumption | 4.9 M MMBtu |
| Ranked #631 out of 11,979 Power Plants Nationwide | |
| Ranked #31 out of 1,369 Water Power Plants Nationwide | |
| Ranked #20 out of 135 Washington Power Plants | |
| Ranked #11 out of 70 Washington Water Power Plants | |
| Fuel Types | Water |
Map of Lower Granite
Full Screen MapRegister Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Lower Granite.
Monthly Net Generation for Lower Granite
Lower Granite Details
| Summary Information | |
|---|---|
| Plant Name | Lower Granite (6175) |
| Plant Address | 885 Almota Ferry Road, Pomeroy, WA 99347 |
| Utility | USACE Northwestern Division (19400) |
| Latitude, Longitude | 46.6595, -117.42939 |
| Generation Dates on File | Jan 2001 to Jan 2025 |
| Initial Operation Date | April 1975 |
| Annual Generation | 1.3 TWh |
| Fuel Types | Water |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | WECC |
| Balancing Authority | Bonneville Power Administration (BPAT) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Snake And Columbia Rivers |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Bonneville Power Administration (1738) WA |
| Grid Voltage | 500.00 kV |
| Energy Storage | No |
Generator 1 Details OA April 1975
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 135 MW |
| Nameplate Power Factor | 0.95 |
| Summer Capacity | 135 MW |
| Winter Capacity | 135 MW |
| Minimum Load | 110 MW |
| Uprate/Derate Completed | No |
| Status | OA |
|---|---|
| First Operation Date | April 1975 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Time From Cold Shutdown To Full Load | 10M |
| Other Planned Modifications | No |
| Multiple Fuels | No |
Generator 2 Details OA May 1975
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 135 MW |
| Nameplate Power Factor | 0.95 |
| Summer Capacity | 127 MW |
| Winter Capacity | 127 MW |
| Minimum Load | 46.4 MW |
| Uprate/Derate Completed | No |
| Status | OA |
|---|---|
| First Operation Date | May 1975 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Time From Cold Shutdown To Full Load | 10M |
| Other Planned Modifications | No |
| Multiple Fuels | No |
Generator 3 Details OA June 1975
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 135 MW |
| Nameplate Power Factor | 0.95 |
| Summer Capacity | 135 MW |
| Winter Capacity | 135 MW |
| Minimum Load | 46.4 MW |
| Uprate/Derate Completed | No |
| Status | OA |
|---|---|
| First Operation Date | June 1975 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Time From Cold Shutdown To Full Load | 10M |
| Other Planned Modifications | No |
| Multiple Fuels | No |
Generator 4 Details OA February 1978
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 135 MW |
| Nameplate Power Factor | 0.95 |
| Summer Capacity | 135 MW |
| Winter Capacity | 135 MW |
| Minimum Load | 57.5 MW |
| Uprate/Derate Completed | No |
| Status | OA |
|---|---|
| First Operation Date | February 1978 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Time From Cold Shutdown To Full Load | 10M |
| Other Planned Modifications | No |
| Multiple Fuels | No |
Generator 5 Details Operating April 1978
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 135 MW |
| Nameplate Power Factor | 0.95 |
| Summer Capacity | 135 MW |
| Winter Capacity | 135 MW |
| Minimum Load | 57.5 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | April 1978 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Time From Cold Shutdown To Full Load | 10M |
| Other Planned Modifications | No |
| Multiple Fuels | No |
Generator 6 Details Operating April 1978
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 135 MW |
| Nameplate Power Factor | 0.95 |
| Summer Capacity | 135 MW |
| Winter Capacity | 135 MW |
| Minimum Load | 57.5 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | April 1978 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Time From Cold Shutdown To Full Load | 10M |
| Other Planned Modifications | No |
| Multiple Fuels | No |
Lower Granite Plant Owners
| Owner Name | Address | Generator | 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 |
|---|---|---|---|
| #21 | Oahe | Pierre, SD | 2.1 TWh |
| #22 | Hells Canyon | Oxbow, OR | 1.8 TWh |
| #23 | Conowingo | Darlington, MD | 1.6 TWh |
| #24 | Hoover Dam (NV) | Boulder City, NV | 1.6 TWh |
| #25 | Libby | Libby, MT | 1.6 TWh |
| #26 | Little Goose | Dayton, WA | 1.5 TWh |
| #27 | Fort Randall | Pickstown, SD | 1.5 TWh |
| #28 | Dworshak | Ahsahka, ID | 1.4 TWh |
| #29 | Hoover Dam (AZ) | Boulder City, AZ | 1.4 TWh |
| #30 | Ice Harbor | Burbank, WA | 1.4 TWh |
| #32 | Noxon Rapids | Noxon, MT | 1.3 TWh |
| #33 | Lower Monumental | Kahlotus, WA | 1.3 TWh |
| #34 | Colgate | Dobbins, CA | 1.3 TWh |
| #35 | Kentucky Dam | Grand Rivers, KY | 1.2 TWh |
| #36 | Pickwick Landing Dam | Pickwick Dam, TN | 1.1 TWh |
| #37 | Wheeler Dam | Town Creek, AL | 1.1 TWh |
| #38 | Safe Harbor | Conestoga, PA | 989.2 GWh |
| #39 | Holtwood | Holtwood, PA | 949.8 GWh |
| #40 | Davis Dam | Kingman, AZ | 908.9 GWh |
| #41 | Oxbow (OR) | Oxbow, OR | 900.1 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Lower Granite.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Adams Nielson Solar | Lind, WA | 41.4 GWh | 60 mi |
| Clearwater Paper IPP Lewiston | Lewiston, ID | 388.0 GWh | 27 mi |
| Dworshak | Ahsahka, ID | 1.4 TWh | 54.7 mi |
| Fighting Creek LFGTE Plant | Coeur d'Alene, ID | 17.0 GWh | 64.7 mi |
| Grimes Way | Pullman, WA | 65.0 MWh | 14 mi |
| Hopkins Ridge Wind | Dayton, WA | 398.1 GWh | 25.3 mi |
| Little Goose | Dayton, WA | 1.5 TWh | 28.9 mi |
| Lower Monumental | Kahlotus, WA | 1.3 TWh | 53.1 mi |
| Lower Snake River Wind Energy Project | Pomeroy, WA | 848.3 GWh | 20.8 mi |
| Marengo Wind Plant | Dayton, WA | 560.6 GWh | 25.7 mi |
| Monroe Street | Spokane, WA | 89.1 GWh | 68.7 mi |
| Palouse | Oakesdale, WA | 294.9 GWh | 34.4 mi |
| Plummer Cogen | Plummer, ID | 8.8 GWh | 52.9 mi |
| Rattlesnake Flat | Ritzville, WA | 403.9 GWh | 57.2 mi |
| Schumann Wind Farm | Milton-Freewater, OR | 22.2 GWh | 72.8 mi |
| Spokane Waste to Energy | Spokane, WA | 125.8 GWh | 66.9 mi |
| Tucannon River Wind Farm | Dayton, WA | 678.5 GWh | 32.8 mi |
| Twin Reservoirs | Walla Walla, WA | 8.1 GWh | 55.7 mi |
| Upper Falls | Spokane, WA | 59.9 GWh | 68.7 mi |
| Upriver Dam Hydro Plant | Spokane, WA | 36.8 GWh | 70.8 mi |