24th largest plant in Hawaii · 4004th nationally
W H Hill is a oil power plant in Hawaii with a nameplate capacity of 37.1 MW. It generates roughly 133.4k MWh per year — enough to power about 12,701 average U.S. homes.
Its capacity factor of 41% puts it in the middle range — running steadily but not full-time. At 2242 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (37.1 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | W H Hill |
|---|---|
| Operator | Hawaii Electric Light Co Inc |
| City | Hilo |
| County | Hawaii County |
| State | Hawaii |
| ZIP | 96720 |
| Coordinates | 19.70410, -155.06070 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 6 | Petroleum Liquids | Residual Oil | 23.0 MW | Operating | 1974 |
| 5 | Petroleum Liquids | Residual Oil | 14.1 MW | Operating | 1965 |
| CO₂ | 149.5k metric tons |
|---|---|
| SO₂ | 1.6k metric tons |
| NOₓ | 288 metric tons |
| CO₂ Rate | 2242 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
Oil-fired plants typically run only during peak demand or grid emergencies because oil is expensive compared to gas and coal. They have the highest CO₂ emissions per MWh of any common generation technology.