Wailuku River Hydroelectric
Hilo Forest Reserve, Hilo, HI 96720Plant Summary Information
Wailuku River Hydroelectric is ranked #45 out of 67 power plants in Hawaii in terms of total annual net electricity generation.
Wailuku River Hydroelectric is comprised of 2 generators and generated 3.1 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Wailuku River Hydroelectric |
|---|---|
| Utility Name | Wailuku Holding Company LLC |
| Location | Hawaii County, HI |
| Initial Operation Date | May 1993 |
| Last Update | Dec 2025 |
| Annual Generation | 14.1 GWh |
| Annual Consumption | 49.6 k MMBtu |
| Ranked #5,711 out of 12,613 Power Plants Nationwide | |
| Ranked #848 out of 1,331 Water Power Plants Nationwide | |
| Ranked #45 out of 67 Hawaii Power Plants | |
| Ranked #3 out of 5 Hawaii Water Power Plants | |
| Fuel Types | Water |
Map of Wailuku River Hydroelectric
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Monthly Net Generation for Wailuku River Hydroelectric
Monthly Plant Fuel Consumption for Wailuku River Hydroelectric
Wailuku River Hydroelectric Details
| Summary Information | |
|---|---|
| Plant Name | Wailuku River Hydroelectric (54827) |
| Plant Address | Hilo Forest Reserve, Hilo, HI 96720 |
| Utility | Wailuku Holding Company LLC (54809) |
| Latitude, Longitude | 19.71299, -155.14857 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | May 1993 |
| Annual Generation | 14.1 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 | 06-70-000. |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | |
| Balancing Authority | () |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Wailuku River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Hawaii Electric Light Co Inc (8287) HI |
| Grid Voltage | 69.00 kV |
| Energy Storage | No |
Generator 8101 Details Operating May 1993
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 5.2 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 4.9 MW |
| Winter Capacity | 4.8 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | May 1993 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
Generator 8102 Details Operating May 1993
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 5.2 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 4.9 MW |
| Winter Capacity | 4.8 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | May 1993 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
Wailuku River Hydroelectric 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 |
|---|---|---|---|
| #838 | White River Lock and Dam 1 | Batesville, AR | 14.6 GWh |
| #839 | Dutch Flat 2 | Dutch Flat, CA | 14.5 GWh |
| #840 | Wilbur | Elizabethon, TN | 14.5 GWh |
| #841 | Effley | Croghan, NY | 14.5 GWh |
| #842 | Spanish Fork | Spanish Fork, UT | 14.5 GWh |
| #843 | Corona | Corona, CA | 14.5 GWh |
| #844 | Washoe | Verdi, NV | 14.4 GWh |
| #845 | Dorena Hydro-Electric Facility | Cottage Grove, OR | 14.2 GWh |
| #846 | South Canal Hydro-3 | Montrose, CO | 14.2 GWh |
| #847 | Glen Ferris Hydro | Gauley Bridge, WV | 14.1 GWh |
| #849 | Weybridge | Weybridge, VT | 14.1 GWh |
| #850 | Oakdale Power Station | West Boylston, MA | 13.9 GWh |
| #851 | Snowden | Big Island, VA | 13.9 GWh |
| #852 | Piercefield | Piercefield, NY | 13.8 GWh |
| #853 | Hewittville Hydroelectric | Norwood, NY | 13.8 GWh |
| #854 | Caldron Falls | Town of Stephenson, WI | 13.7 GWh |
| #855 | Kimberly Mill | Appleton, WI | 13.7 GWh |
| #856 | Mio | Mio, MI | 13.6 GWh |
| #857 | Lockwood Hydroelectric Facility | Waterville, ME | 13.6 GWh |
| #858 | Chalk Hill | Stephenson, MI | 13.6 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Wailuku River Hydroelectric.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| AES Maui Kuihelani Solar Hybrid | Waikapu, HI | 106.8 GWh | 116.7 mi |
| AES Waikoloa Solar Hybrid | Waikoloa Village, HI | 61.0 GWh | 42.1 mi |
| Auwahi Wind Energy Hybrid | Kula, HI | 87.2 GWh | 97.3 mi |
| Hale Kuawehi Solar Hybrid | Waimea, HI | 65.0 GWh | 37.8 mi |
| Hamakua Energy Plant | Honokaa, HI | 88.2 GWh | 33.6 mi |
| Hana Substation | Hana, HI | 210.0 MWh | 91.2 mi |
| Kaheawa Wind Power II LLC | Wailuku, HI | 47.9 GWh | 116.9 mi |
| Kahului | Kahului, HI | 157.1 GWh | 118.1 mi |
| Kanoelehua | Hilo, HI | 11.1 GWh | 5.6 mi |
| Keahole | Kailua Kona, HI | 319.5 GWh | 57.2 mi |
| Kihei Solar Farm | Kihei, HI | 352.0 MWh | 111.9 mi |
| Kuihelani Substation | Kahului, HI | 2.0 MWh | 117 mi |
| Maalaea | Kihei, HI | 623.0 GWh | 115.1 mi |
| Mauna Loa Macadamia Nut | Keaau, HI | 1.4 GWh | 9.9 mi |
| Pakini Nui Wind Farm | Naalehu, HI | 114.9 GWh | 62.1 mi |
| Puna | Keaau, HI | 105.9 GWh | 9.5 mi |
| Puna Geothermal Venture I | Pahoa, HI | 258.9 GWh | 23.4 mi |
| Puueo | Hilo, HI | 1.0 GWh | 3.9 mi |
| W H Hill | Hilo, HI | 105.6 GWh | 5.7 mi |
| Waimea | Kamuela, HI | 7.3 GWh | 41.6 mi |