Conemaugh
Conemaugh is a coal plant in Indiana County, Pennsylvania, operated by KeyCon Operating LLC. It ranks fourth by nameplate capacity among Pennsylvania’s 273 power plants. It is the biggest of Pennsylvania’s 13 coal plants. Ownership is shared by five organizations; the largest stake, 35%, is held by Chief Conemaugh Power LLC.
Nameplate capacity, 2025
1,963 MW
1,711 MW net summer capacity
6 operable units
- Coal steam1,951 MW99%
- Oil-fired12 MW0.6%
Unit by unit, 1970 to 2025
operating in 2025bar height follows unit size
Unit 1 Coal steam, 976 MW, 1970
Unit A Oil-fired, 3 MW, 1970
Unit B Oil-fired, 3 MW, 1970
Unit C Oil-fired, 3 MW, 1970
Unit D Oil-fired, 3 MW, 1970
Unit 2 Coal steam, 976 MW, 1971
Among Pennsylvania’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Peach Bottom2,876 MW
- 2TalenEnergy Susquehanna2,532 MW
- 3Limerick2,277 MW
- 4Conemaughthis plant
- 5Keystone1,883 MW
- 6Beaver Valley1,847 MW
Other rankings
- All US power plants
- 73rd of 14,286
- US coal plants
- 20th of 195
- Plants in the PJM Interconnection balancing area
- 17th of 2,049
- Plants run by KeyCon Operating LLC
- 1st of 2
- Biggest single unit, among Pennsylvania’s plants
- 5th of 273
Operable units
By the year its oldest working unit started, it is the third-oldest of Pennsylvania’s coal plants.
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| A | Oil-fired | 3 MW | 2.8 MW | 1970 | Standby |
| B | Oil-fired | 3 MW | 2.8 MW | 1970 | Standby |
| C | Oil-fired | 3 MW | 2.8 MW | 1970 | Standby |
| D | Oil-fired | 3 MW | 2.8 MW | 1970 | Standby |
| 1 | Coal steam | 976 MW | 850 MW | 1970 | Operating |
| 2 | Coal steam | 976 MW | 850 MW | 1971 | Operating |
Who owns it
Shares are weighted by the nameplate capacity of each unit an owner holds.
| Owner | Share of capacity |
|---|---|
| Chief Conemaugh Power LLC | 35.1% |
| Chief Conemaugh Power II, LLC | 22.5% |
| Montour LLC | 22.2% |
| Conemaugh Power Pass-Through Holders LLC | 16.4% |
| Conemaugh Power LLC | 3.7% |
Grid and site
- Balancing area
- PJM Interconnection
- Reliability region
- ReliabilityFirst
- Highest grid connection voltage
- 500 kV
- Water source
- Conemaugh River
- Nearest town on record
- New Florence
- Operator type
- Independent producer
- Coordinates
- 40.384°N, 79.061°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Seward (PA) | Coal | 585 MW | 2.1 mi northeast |
| CPV Fairview Energy Center | Natural gas | 1,197 MW | 11.0 mi east |
| Indiana University of Pennsylvania | Natural gas | 24.4 MW | 16.7 mi north |
| Conemaugh Hydro Plant | Hydroelectric | 15 MW | 17.0 mi west |
| Ebensburg Power | Coal | 57.6 MW | 17.2 mi east |
| Colver Green Energy | Coal | 118 MW | 18.0 mi northeast |
| Spring Lane | Solar | 13.8 MW | 19.4 mi southwest |
| Cambria Wind LLC | Wind | 62.5 MW | 20.3 mi east |