Arrowrock Hydroelectric Project
Hwy 21 & Arrowrock Rd, Boise, ID 83716Plant Summary Information
Arrowrock Hydroelectric Project is ranked #43 out of 142 power plants in Idaho in terms of total annual net electricity generation.
Arrowrock Hydroelectric Project is comprised of 2 generators and generated 4.6 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Arrowrock Hydroelectric Project |
|---|---|
| Utility Name | Boise-Kuna Irrigation District |
| Location | Elmore County, ID |
| Initial Operation Date | April 2010 |
| Last Update | Dec 2025 |
| Annual Generation | 63.2 GWh |
| Annual Consumption | 220.6 k MMBtu |
| Ranked #3,937 out of 13,081 Power Plants Nationwide | |
| Ranked #424 out of 1,311 Water Power Plants Nationwide | |
| Ranked #43 out of 142 Idaho Power Plants | |
| Ranked #20 out of 74 Idaho Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for Arrowrock Hydroelectric Project
Monthly Plant Fuel Consumption for Arrowrock Hydroelectric Project
Arrowrock Hydroelectric Project Details
| Summary Information | |
|---|---|
| Plant Name | Arrowrock Hydroelectric Project (56997) |
| Plant Address | Hwy 21 & Arrowrock Rd, Boise, ID 83716 |
| Utility | Boise-Kuna Irrigation District (1932) |
| Latitude, Longitude | 43.595, -115.9233 |
| Generation Dates on File | Apr 2010 to Dec 2025 |
| Initial Operation Date | April 2010 |
| Annual Generation | 63.2 GWh |
| 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 | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | Idaho Power Company (IPCO) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Boise River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Idaho Power Co (9191) ID |
| Grid Voltage | 34.50 kV |
| Energy Storage | No |
Generator 1 Details Operating April 2010
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 7.5 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 8 MW |
| Winter Capacity | 8 MW |
| Minimum Load | 5 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | April 2010 |
| 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 |
| Multiple Fuels | No |
Generator 2 Details Operating April 2010
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 7.5 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 8 MW |
| Winter Capacity | 8 MW |
| Minimum Load | 5 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | April 2010 |
| 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 |
| Multiple Fuels | No |
Arrowrock Hydroelectric Project 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 |
|---|---|---|---|
| #414 | Dutch Flat | Alta, CA | 66.0 GWh |
| #415 | Alamo | Pearblossom, CA | 65.7 GWh |
| #416 | Ocoee 1 | Benton, TN | 65.6 GWh |
| #417 | Foster | Foster, OR | 65.2 GWh |
| #418 | Chicago Park | Colfax, CA | 65.2 GWh |
| #419 | Hardy | Newaygo, MI | 64.9 GWh |
| #420 | Amoskeag | Manchester, NH | 64.9 GWh |
| #421 | South Glens Falls Hydroelectric | South Glens Falls, NY | 64.5 GWh |
| #422 | London | Handley, WV | 64.1 GWh |
| #423 | Williams Hydro | Solon, ME | 63.5 GWh |
| #425 | Johnson 2 | Lexington, NE | 63.0 GWh |
| #426 | Black Canyon | Emmet, ID | 62.9 GWh |
| #427 | William F Matson Generating Station | Huntingdon, PA | 62.8 GWh |
| #428 | Piney | Clarion, PA | 62.2 GWh |
| #429 | Flambeau Hydroelectric Station | Ladysmith, WI | 62.1 GWh |
| #430 | Schaghticoke | Schaghticoke, NY | 61.8 GWh |
| #431 | Big Cliff | Gates, OR | 61.1 GWh |
| #432 | North Platte | North Platte, NE | 61.0 GWh |
| #433 | Boott Hydropower | Lowell, MA | 60.8 GWh |
| #434 | Little Quinnesec Falls Hydro Project | Niagara, WI | 60.8 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Arrowrock Hydroelectric Project.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Amalgamated Sugar LLC Nampa | Nampa, ID | 46.8 GWh | 32.6 mi |
| Anderson Ranch | Mountain Home, ID | 85.8 GWh | 28.8 mi |
| Barber Dam | Boise, ID | 6.7 GWh | 10.2 mi |
| Bennett Mountain | Mountain Home, ID | 999.1 GWh | 33.5 mi |
| Black Canyon | Emmet, ID | 62.9 GWh | 34.6 mi |
| Boise R Diversion | Boise, ID | 73.0 MWh | 9.4 mi |
| Evander Andrews Power Complex | Mountain Home, ID | 926.4 GWh | 30.3 mi |
| Hidden Hollow Energy | Boise, ID | 2.8 GWh | 18.8 mi |
| Horseshoe Bend Hydroelectric Co | Horseshoe Bend, ID | 46.8 GWh | 26.7 mi |
| ID Solar | Kuna, ID | 92.2 GWh | 23 mi |
| Lucky Peak Power Plant Project | Boise, ID | 311.2 GWh | 8.2 mi |
| Matrix Pleasant Valley | Boise, ID | 503.6 GWh | 20.4 mi |
| MC6 Hydro Facility | Kuna, ID | 8.4 GWh | 22.9 mi |
| Mora Drop Hydroelectric Project | Kuna, ID | 4.6 GWh | 29.1 mi |
| Mt. Home Solar 1, LLC | Pocatello, ID | 48.5 GWh | 33.3 mi |
| Murphy Flat Solar | Murphy, ID | 43.1 GWh | 37.1 mi |
| Orchard Ranch Solar | Kuna, ID | 46.3 GWh | 20.3 mi |
| Pleasant Valley Solar 2 Project | Boise, ID | 90.3 GWh | 18.7 mi |
| Simcoe Solar | Mountain Home, ID | 48.0 GWh | 18.6 mi |
| Swan Falls | Kuna, ID | 110.0 GWh | 33.4 mi |