Guernsey Power Station
Guernsey Power Station is a natural gas plant in Guernsey County, Ohio, operated by Guernsey Power Station LLC. It ranks second by nameplate capacity among Ohio’s 215 power plants. Of its current capacity, 2,055 MW came online between 2023 and 2025. It is the biggest of Ohio’s 47 natural gas plants.
Nameplate capacity, 2025
2,055 MW
1,788 MW net summer capacity
3 operable units
- Gas combined cycle2,055 MW100%
Unit by unit, 2023 to 2025
operating in 2025bar height follows unit size
Unit GPS1 Gas combined cycle, 685 MW, 2023
Unit GPS2 Gas combined cycle, 685 MW, 2023
Unit GPS3 Gas combined cycle, 685 MW, 2023
Among Ohio’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Gavin Power, LLC2,600 MW
- 2Guernsey Power Stationthis plant
- 3Cardinal1,880 MW
- 4Hanging Rock Energy Facility1,430 MW
Other rankings
- All US power plants
- 65th of 14,286
- US natural gas plants
- 20th of 1,961
- Plants in the PJM Interconnection balancing area
- 13th of 2,049
- Biggest single unit, among Ohio’s plants
- 4th of 215
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GPS1 | Gas combined cycle | 685 MW | 598 MW | 2023 | Operating |
| GPS2 | Gas combined cycle | 685 MW | 596 MW | 2023 | Operating |
| GPS3 | Gas combined cycle | 685 MW | 595 MW | 2023 | Operating |
Grid and site
- Balancing area
- PJM Interconnection
- Reliability region
- ReliabilityFirst
- Highest grid connection voltage
- 765 kV
- Water source
- Town of Byesville, Ohio
- Nearest town on record
- Byesville
- Operator type
- Independent producer
- Coordinates
- 39.936°N, 81.535°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Washington Energy Facility | Natural gas | 715 MW | 25.5 mi south |
| Anadarko | Oil and petroleum | 7.8 MW | 25.5 mi southeast |
| Dresden Energy Facility | Natural gas | 678 MW | 28.2 mi northwest |
| Waterford Power, LLC | Natural gas | 922 MW | 29.5 mi south |
| Suburban Landfill Gas Recovery | Biomass and waste | 5.6 MW | 37.6 mi west |
| Axiall Natrium Plant | Natural gas | 116 MW | 38.4 mi east |
| Mitchell (WV) | Coal | 1,633 MW | 38.9 mi east |
| Long Ridge Energy Generation | Natural gas | 522 MW | 40.0 mi southeast |