Helemano Substation Dg is a oil power plant in Hawaii.
| Plant Name | Helemano Substation Dg |
|---|---|
| Operator | Hawaiian Electric Co Inc |
| City | Wahiawa |
| County | Honolulu County |
| State | Hawaii |
| ZIP | 96786 |
| Coordinates | 21.52920, -158.04580 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| DG1 | Petroleum Liquids | Distillate Oil | 1.6 MW | Retired | 2005 |
| DG2 | Petroleum Liquids | Distillate Oil | 1.6 MW | Retired | 2005 |
| DG3 | Petroleum Liquids | Distillate Oil | 1.6 MW | Retired | 2005 |
| Owner | Location | Share |
|---|---|---|
| Hawthorne Power Systems | Waipahu, HI | 10000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
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.