Hanging Rock Energy Facility
Natural gas power plant · Lawrence County, Ohio
Nameplate capacity
1,430 MW
Rank in Ohio
#4
of 219 plants
In service since
2003
June 2003
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Dynegy Hanging Rock Energy Facility
- County
- Lawrence County
- Generating units
- 6
- Share of state capacity
- 4.00%
- Rank among natural gas plants in Ohio
- #2 of 51
- EIA plant code
- 55736
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1ST | Natural Gas Fired Combined Cycle | 317 MW | 316 MW | 2003 | Operating |
| 2ST | Natural Gas Fired Combined Cycle | 317 MW | 314 MW | 2003 | Operating |
| 1GT1 | Natural Gas Fired Combined Cycle | 199 MW | 181 MW | 2003 | Operating |
| 1GT2 | Natural Gas Fired Combined Cycle | 199 MW | 183 MW | 2003 | Operating |
| 2GT1 | Natural Gas Fired Combined Cycle | 199 MW | 185 MW | 2003 | Operating |
| 2GT2 | Natural Gas Fired Combined Cycle | 199 MW | 186 MW | 2003 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Ohio
| Guernsey Power Station | Natural gas | 2,055 MW |
| Cardinal | Coal | 1,880 MW |
| Perry | Nuclear | 1,312 MW |
| South Field Energy | Natural gas | 1,210 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1,430 MW solar plant and a 1,430 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Ohio power plants · What Ohio actually generates