Wailuku River Hydroelectric
Hilo Forest Reserve, Hilo, HI 96720Plant Summary Information
Wailuku River Hydroelectric is ranked #37 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 11.0 GWh during the 3-month period between March 2026 to June 2026.
| Plant Name | Wailuku River Hydroelectric |
|---|---|
| Utility Name | Wailuku Holding Company LLC |
| Location | Hawaii County, HI |
| Initial Operation Date | May 1993 |
| Last Update | Jun 2026 |
| Annual Generation | 29.9 GWh |
| Annual Consumption | 104.0 k MMBtu |
| Ranked #4,887 out of 13,094 Power Plants Nationwide | |
| Ranked #600 out of 1,309 Water Power Plants Nationwide | |
| Ranked #37 out of 67 Hawaii Power Plants | |
| Ranked #2 out of 5 Hawaii Water Power Plants | |
| Fuel Types | Water |
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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 Jun 2026 |
| Initial Operation Date | May 1993 |
| Annual Generation | 29.9 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 |
|---|---|---|---|
| #590 | Cedar Falls (WI) | Menomonie, WI | 30.9 GWh |
| #591 | Salmon Creek 1 | Juneau, AK | 30.9 GWh |
| #592 | Coleman PH | Anderson, CA | 30.9 GWh |
| #593 | Minetto | Minetto, NY | 30.8 GWh |
| #594 | Chandler | Benton City, WA | 30.6 GWh |
| #595 | Higley | Colton, NY | 30.5 GWh |
| #596 | Clearwater 2 | Idleyld Park, OR | 30.5 GWh |
| #597 | Sartell Dam | Sartell, MN | 30.4 GWh |
| #598 | SAF Hydroelectric LLC | Minneapolis, MN | 30.2 GWh |
| #599 | Rush Creek | June lake, CA | 30.0 GWh |
| #601 | Wise | Auburn, CA | 29.9 GWh |
| #602 | Aziscohos Hydroelectric Project | Wilson Mills, ME | 29.8 GWh |
| #603 | Biron | Biron, WI | 29.6 GWh |
| #604 | Norway (MI) | Norway, MI | 29.5 GWh |
| #605 | Croton | Newaygo, MI | 29.5 GWh |
| #606 | Deerfield 2 | Conway, MA | 29.4 GWh |
| #607 | Michigamme Falls | Crystal Falls, MI | 29.4 GWh |
| #608 | Buchanan Dam (TX) | Buchanan Dam, TX | 29.2 GWh |
| #609 | Green Mountain | Kremmling, CO | 28.5 GWh |
| #610 | Eagle | Croghan, NY | 28.4 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 | 94.4 GWh | 116.7 mi |
| AES Waikoloa Solar Hybrid | Waikoloa Village, HI | 56.8 GWh | 42.1 mi |
| Auwahi Wind Energy Hybrid | Kula, HI | 90.7 GWh | 97.3 mi |
| Hale Kuawehi Solar Hybrid | Waimea, HI | 77.1 GWh | 37.8 mi |
| Hamakua Energy Plant | Honokaa, HI | 141.7 GWh | 33.6 mi |
| Hana Substation | Hana, HI | 84.0 MWh | 91.2 mi |
| Kaheawa Pastures Wind Farm Hybrid | Maalaea, HI | 44.9 GWh | 118.5 mi |
| Kaheawa Wind Power II LLC | Wailuku, HI | 47.7 GWh | 116.9 mi |
| Kahului | Kahului, HI | 152.1 GWh | 118.1 mi |
| Kanoelehua | Hilo, HI | 7.2 GWh | 5.6 mi |
| Keahole | Kailua Kona, HI | 261.5 GWh | 57.2 mi |
| Kuihelani Substation | Kahului, HI | 18.0 MWh | 117 mi |
| Maalaea | Kihei, HI | 644.0 GWh | 115.1 mi |
| Mauna Loa Macadamia Nut | Keaau, HI | 1.4 GWh | 9.9 mi |
| Pakini Nui Wind Farm | Naalehu, HI | 107.1 GWh | 62.1 mi |
| Puna | Keaau, HI | 58.1 GWh | 9.5 mi |
| Puna Geothermal Venture I | Pahoa, HI | 207.9 GWh | 23.4 mi |
| Puueo | Hilo, HI | 2.0 GWh | 3.9 mi |
| W H Hill | Hilo, HI | 145.4 GWh | 5.7 mi |
| Waimea | Kamuela, HI | 6.2 GWh | 41.6 mi |