25th largest plant in New York · 658th nationally
Holtsville is a oil power plant in New York with a nameplate capacity of 567 MW. It generates roughly 15.9k MWh per year — enough to power about 1,513 average U.S. homes.
Its capacity factor of 0% reflects intermittent or peaking operation. At 2750 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Holtsville |
|---|---|
| Operator | National Grid Generation Llc |
| City | Holtsville |
| County | Suffolk County |
| State | New York |
| ZIP | 11742 |
| Coordinates | 40.81704, -73.06627 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1974 |
| 10 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1975 |
| 2 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1974 |
| 3 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1974 |
| 4 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1974 |
| 5 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1974 |
| 6 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1975 |
| 7 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1975 |
| 8 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1975 |
| 9 | Petroleum Liquids | Kerosene | 56.7 MW | Operating | 1975 |
| CO₂ | 21.9k metric tons |
|---|---|
| NOₓ | 66 metric tons |
| CO₂ Rate | 2750 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.
| NERC Region | NPCC |
|---|---|
| Balancing Authority | New York Independent System Operator |
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.