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 442.0 MWh during the 3-month period between August 2025 to November 2025.
| Plant Name | Puueo |
|---|---|
| Utility Name | Hawaii Electric Light Co Inc |
| Location | Hawaii County, HI |
| Initial Operation Date | December 1918 |
| Last Update | Nov 2025 |
| Annual Generation | 1.0 GWh |
| Annual Consumption | 3.8 k MMBtu |
| Ranked #11,458 out of 12,574 Power Plants Nationwide | |
| Ranked #1,302 out of 1,331 Water Power Plants Nationwide | |
| Ranked #64 out of 67 Hawaii Power Plants | |
| Ranked #5 out of 5 Hawaii Water Power Plants | |
| Fuel Types | Water |
Map of Puueo
Full Screen MapRegister Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Puueo.
Monthly Net Generation 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 Nov 2025 |
| Initial Operation Date | December 1918 |
| Annual Generation | 1.0 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 |
|---|---|---|---|
| #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 | Kaweah 2 | Three Rivers, CA | 1.3 GWh |
| #1298 | Indian River Hydro | Russell, MA | 1.3 GWh |
| #1299 | Sugarloaf Hydro Plant | Leadville, CO | 1.2 GWh |
| #1300 | Ruxton Park | Manitou Spring, CO | 1.1 GWh |
| #1301 | Bend | Bend, OR | 1.1 GWh |
| #1303 | Salida | Salida, CO | 1.0 GWh |
| #1304 | Ottauquechee Hydro | N. Hartland, VT | 978.0 MWh |
| #1305 | Longfalls Facility | West Carthage, NY | 881.0 MWh |
| #1306 | Walden | Walden, NY | 840.0 MWh |
| #1307 | Cavendish | Cavendish, VT | 830.0 MWh |
| #1308 | Manti Lower | Manti, UT | 802.0 MWh |
| #1309 | Cosgrove Intake and Power Station | Clinton, MA | 738.0 MWh |
| #1310 | Talcville | Edwards, NY | 601.0 MWh |
| #1311 | C-Drop Hydro | Klamath Falls, OR | 574.0 MWh |
| #1312 | W K Sanders | Hyde Park, VT | 548.0 MWh |
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 | 109.0 GWh | 118.9 mi |
| AES Waikoloa Solar Hybrid | Waikoloa Village, HI | 61.5 GWh | 45.4 mi |
| Auwahi Wind Energy Hybrid | Kula, HI | 87.2 GWh | 99.7 mi |
| Hale Kuawehi Solar Hybrid | Waimea, HI | 59.7 GWh | 40.9 mi |
| Hamakua Energy Plant | Honokaa, HI | 85.2 GWh | 35.4 mi |
| Hana Substation | Hana, HI | 210.0 MWh | 92.7 mi |
| Kaheawa Wind Power II LLC | Wailuku, HI | 48.0 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 | 329.1 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 | 614.5 GWh | 117.4 mi |
| Mauna Loa Macadamia Nut | Keaau, HI | 1.4 GWh | 7.2 mi |
| Pakini Nui Wind Farm | Naalehu, HI | 113.6 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 | 13.8 GWh | 3.9 mi |
| Waimea | Kamuela, HI | 7.3 GWh | 44.4 mi |