Puueo
117 Wainaku Avenue, Hilo, HI 96720Plant Summary Information
Puueo is ranked #5 out of 5 hydroelectric power plants in Hawaii in terms of total annual net electricity generation.
Puueo is comprised of 2 generators and generated 1.1 GWh during the 3-month period between October 2025 to January 2026.
| Plant Name | Puueo |
|---|---|
| Utility Name | Hawaii Electric Light Co Inc |
| Location | Hawaii County, HI |
| Initial Operation Date | December 1918 |
| Last Update | Jan 2026 |
| Annual Generation | 1.6 GWh |
| Annual Consumption | 6.0 k MMBtu |
| Ranked #11,058 out of 12,629 Power Plants Nationwide | |
| Ranked #1,290 out of 1,331 Water Power Plants Nationwide | |
| Ranked #59 out of 67 Hawaii Power Plants | |
| Ranked #5 out of 5 Hawaii Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for Puueo
Monthly Plant Fuel Consumption for Puueo
Puueo Details
| Summary Information | |
|---|---|
| Plant Name | Puueo (771) |
| Plant Address | 117 Wainaku Avenue, Hilo, HI 96720 |
| Utility | Hawaii Electric Light Co Inc (8287) |
| Latitude, Longitude | 19.7264, -155.0908 |
| Generation Dates on File | Jan 2001 to Jan 2026 |
| Initial Operation Date | December 1918 |
| Annual Generation | 1.6 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 | Regulated |
| NERC Region | |
| Balancing Authority | () |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Wailuku River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Hawaii Electric Light Co Inc (8287) HI |
| Grid Voltage | 13.80 kV |
| Energy Storage | No |
Generator 1 Details Operating December 1918
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 0.7 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 0.7 MW |
| Winter Capacity | 0.7 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | December 1918 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Generator 2A Details Operating October 2005
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 2.4 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 2.4 MW |
| Winter Capacity | 2.4 MW |
| Minimum Load | 0.3 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | October 2005 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Puueo 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 |
|---|---|---|---|
| #1280 | Salisbury | Salisbury, VT | 2.0 GWh |
| #1281 | Humpback Creek | Cordova, AK | 2.0 GWh |
| #1282 | Kings Falls Hydroelectric | Copenhagen, NY | 2.0 GWh |
| #1283 | Mechanic Falls | Mechanic Falls, ME | 1.9 GWh |
| #1284 | Gouldtown | Lyonsdale, NY | 1.9 GWh |
| #1285 | Ada Dam | Ada, MI | 1.8 GWh |
| #1286 | Prairie River | Grand Rapids, MN | 1.8 GWh |
| #1287 | Wrightsville Hydro Plant | Montpelier, VT | 1.7 GWh |
| #1288 | Tulare Success Power Project | Porterville, CA | 1.6 GWh |
| #1289 | Pelican | Pelican, AK | 1.7 GWh |
| #1291 | Smith (VT) | Bradford, VT | 1.6 GWh |
| #1292 | Mascoma Hydro | W. Lebanon, NH | 1.5 GWh |
| #1293 | Alta Powerhouse | Alta, CA | 1.4 GWh |
| #1294 | Halifax (VA) | Halifax, VA | 1.4 GWh |
| #1295 | Lateral 10 Ventures | Buhl, ID | 1.4 GWh |
| #1296 | Marshall (MI) | Marshall, MI | 704.0 MWh |
| #1297 | Spartanburg Water System | Chesnee, SC | 1.4 GWh |
| #1298 | Kaweah 2 | Three Rivers, CA | 1.3 GWh |
| #1299 | Indian River Hydro | Russell, MA | 1.3 GWh |
| #1300 | Sugarloaf Hydro Plant | Leadville, CO | 1.2 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Puueo.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| AES Maui Kuihelani Solar Hybrid | Waikapu, HI | 106.0 GWh | 118.9 mi |
| AES Waikoloa Solar Hybrid | Waikoloa Village, HI | 62.3 GWh | 45.4 mi |
| Auwahi Wind Energy Hybrid | Kula, HI | 87.2 GWh | 99.7 mi |
| Hale Kuawehi Solar Hybrid | Waimea, HI | 69.6 GWh | 40.9 mi |
| Hamakua Energy Plant | Honokaa, HI | 100.8 GWh | 35.4 mi |
| Hana Substation | Hana, HI | 210.0 MWh | 92.7 mi |
| Kaheawa Wind Power II LLC | Wailuku, HI | 46.8 GWh | 119.3 mi |
| Kahului | Kahului, HI | 157.1 GWh | 120.2 mi |
| Kanoelehua | Hilo, HI | 11.1 GWh | 2.4 mi |
| Keahole | Kailua Kona, HI | 305.2 GWh | 61 mi |
| Kihei Solar Farm | Kihei, HI | 352.0 MWh | 114.1 mi |
| Kuihelani Substation | Kahului, HI | 2.0 MWh | 119.2 mi |
| Maalaea | Kihei, HI | 627.6 GWh | 117.4 mi |
| Mauna Loa Macadamia Nut | Keaau, HI | 1.4 GWh | 7.2 mi |
| Pakini Nui Wind Farm | Naalehu, HI | 118.7 GWh | 65.1 mi |
| Puna | Keaau, HI | 105.9 GWh | 7.6 mi |
| Puna Geothermal Venture I | Pahoa, HI | 258.9 GWh | 21.6 mi |
| W H Hill | Hilo, HI | 105.6 GWh | 2.5 mi |
| Wailuku River Hydroelectric | Hilo, HI | 15.4 GWh | 3.9 mi |
| Waimea | Kamuela, HI | 7.3 GWh | 44.4 mi |