Hunterstown Power Plant
Natural gas power plant in Adams County, Pennsylvania. 898 MW of nameplate capacity across 4 generators, operated by Hunterstown Generation, LLC.
Also known as EIA plant 55976
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Key facts
- Capacity
- 898 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- July 2003First generator online
- Operator
- Hunterstown Generation, LLCEIA operator ID 61913
- Grid
- PJMBalancing authority PJM
- Price nodes
- 4 PJM nodesResource nodes with prices
- Location
- Adams County, PA39.8725, −77.1672
- EIA plant ID
- 55976EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Hunterstown produces
Free · EIA-923Net generation, 2025
6.09 TWh
6,086,583 MWh, final
Capacity factor, 2025
77.4%
2024: 69.3%
January to July 2026
3.42 TWh
Provisional
Range, 2015 to 2025
4.6–6.6
TWh a year. Low 2016, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | 21,139 | Not reported | 6 of 12 |
| 2004 | 283,944 | Not reported | 12 of 12 |
| 2005 | 714,682 | Not reported | 12 of 12 |
| 2006 | 725,691 | Not reported | 12 of 12 |
| 2007 | 1,190,623 | Not reported | 12 of 12 |
| 2008 | 1,084,694 | Not reported | 12 of 12 |
| 2009 | 1,900,021 | Not reported | 12 of 12 |
| 2010 | 2,266,895 | 28.8% | 12 of 12 |
| 2011 | 4,194,611 | 53.3% | 12 of 12 |
| 2012 | 4,326,384 | 54.8% | 12 of 12 |
| 2013 | 4,344,588 | Not reported | 12 of 12 |
| 2014 | 1,417,357 | 53.9% | 4 of 12 |
| 2015 | 5,095,053 | 64.8% | 12 of 12 |
| 2016 | 4,577,462 | 58.0% | 12 of 12 |
| 2017 | 5,049,276 | 64.2% | 12 of 12 |
| 2018 | 827,835 | 62.0% | 2 of 12 |
| 2019 | 5,863,953 | 74.5% | 12 of 12 |
| 2020 | 6,570,656 | 83.3% | 12 of 12 |
| 2021 | 5,707,527 | 72.6% | 12 of 12 |
| 2022 | 5,914,124 | 75.2% | 12 of 12 |
| 2023 | 5,057,551 | 64.3% | 12 of 12 |
| 2024 | 5,465,138 | 69.3% | 12 of 12 |
| 2025 | 6,086,583 | 77.4% | 12 of 12 |
| 2026 (provisional, partial year) | 3,419,775 | 74.8% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · PJMEmissions
Free · EPA CAMPDCO₂, 2025
2.54M
US short tons. 2024: 2.32M
SO₂, 2025
13
US short tons
NOx, 2025
161
US short tons
CO₂ per MWh, calculated
0.42 t
About 833 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (CT101, CT201, CT301), matched to EIA plant 55976 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
Not reported
million gallons as reported; not used, see note
Consumption, 2024
Not reported
million gallons
Source
Not reported
Dry cooling
Watershed stress
Very low/none · 0.128
USGS SUI, HUC12 Upper Rock Creek
0 of 12 cooling months report withdrawal. Dry cooling with no reported withdrawal; not tested. Consumption is below 5% of a large reported withdrawal, so the withdrawal is not used. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 101 | Natural Gas Fired Combined Cycle | 179.0 | July 2003 |
| 201 | Natural Gas Fired Combined Cycle | 179.0 | July 2003 |
| 301 | Natural Gas Fired Combined Cycle | 179.0 | July 2003 |
| 401 | Natural Gas Fired Combined Cycle | 361.0 | July 2003 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Hunterstown Generation, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Hunterstown
How much power does Hunterstown Power Plant produce?
Hunterstown Power Plant reported 6,086,583 MWh (6.09 TWh) of net generation in 2025, a 77.4% capacity factor on 898 MW of nameplate capacity. From January to July 2026 it reported 3.42 TWh, which is provisional.
Where is Hunterstown Power Plant?
Hunterstown Power Plant is in Adams County, Pennsylvania, at 39.8725, −77.1672. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Hunterstown Power Plant?
EIA-860M for August 2026 lists Hunterstown Generation, LLC as the operator (EIA operator ID 61913). The operator is not always the owner.
When did Hunterstown Power Plant start operating?
Its first generator began operating in July 2003, according to EIA-860M.
Does InfraMap have power prices for Hunterstown Power Plant?
Yes. InfraMap has PJM day-ahead and real-time prices at 4 price nodes linked to Hunterstown Power Plant, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- PJM day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page