Johnsonburg Mill
Wood biomass power plant in Elk County, Pennsylvania. 54 MW of nameplate capacity across 1 generator, operated by Domtar LLC.
Also known as Johnsonburg Mill Power Plant · EIA plant 54638
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 54 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- February 1993First generator online
- Operator
- Domtar LLCEIA operator ID 56137
- Grid
- PJMBalancing authority PJM
- Price nodes
- 1 PJM nodeResource nodes with prices
- Location
- Elk County, PA41.4915, −78.6758
- EIA plant ID
- 54638EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Johnsonburg Mill produces
Free · EIA-923Net generation, 2025
145 GWh
145,001 MWh, final
Capacity factor, 2025
30.7%
2024: 8.6%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
40.6–271.5
GWh a year. Low 2024, high 2018
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 226,296 | Not reported | 12 of 12 |
| 2001 | 244,416 | Not reported | 12 of 12 |
| 2002 | 259,448 | Not reported | 11 of 12 |
| 2003 | 68,213 | Not reported | 3 of 12 |
| 2004 | 276,001 | Not reported | 12 of 12 |
| 2005 | 312,017 | Not reported | 12 of 12 |
| 2006 | 308,157 | Not reported | 12 of 12 |
| 2007 | 172,450 | Not reported | 12 of 12 |
| 2008 | 242,902 | Not reported | 12 of 12 |
| 2009 | 289,156 | Not reported | 12 of 12 |
| 2010 | 283,830 | 60.0% | 12 of 12 |
| 2011 | 242,181 | 51.2% | 12 of 12 |
| 2012 | 257,513 | 54.3% | 12 of 12 |
| 2013 | 119,475 | 25.3% | 12 of 12 |
| 2014 | 280,690 | 59.3% | 12 of 12 |
| 2015 | 244,687 | 51.7% | 12 of 12 |
| 2016 | 219,209 | 46.2% | 12 of 12 |
| 2017 | 243,463 | 51.5% | 12 of 12 |
| 2018 | 271,462 | 57.4% | 12 of 12 |
| 2019 | 88,909 | 18.8% | 12 of 12 |
| 2020 | 225,019 | 47.4% | 12 of 12 |
| 2021 | 205,504 | 43.4% | 12 of 12 |
| 2022 | 148,403 | 31.4% | 12 of 12 |
| 2023 | 65,100 | 13.8% | 12 of 12 |
| 2024 | 40,626 | 8.6% | 12 of 12 |
| 2025 | 145,001 | 30.7% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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
Not reported
US short tons. 2024: Not reported
SO₂, 2025
Not reported
US short tons
NOx, 2025
31
US short tons
0 of 2 EPA units reported CO₂ in 2025 (40, 41), matched to EIA plant 54638 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| PT1 | Wood/Wood Waste Biomass | 54.0 | February 1993 |
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 Domtar 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 Johnsonburg Mill
How much power does Johnsonburg Mill produce?
Johnsonburg Mill reported 145,001 MWh (145 GWh) of net generation in 2025, a 30.7% capacity factor on 54 MW of nameplate capacity.
Where is Johnsonburg Mill?
Johnsonburg Mill is in Elk County, Pennsylvania, at 41.4915, −78.6758. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Johnsonburg Mill?
EIA-860M for August 2026 lists Domtar LLC as the operator (EIA operator ID 56137). The operator is not always the owner.
When did Johnsonburg Mill start operating?
Its first generator began operating in February 1993, according to EIA-860M.
Does InfraMap have power prices for Johnsonburg Mill?
Yes. InfraMap has PJM day-ahead and real-time prices at 1 price node linked to Johnsonburg Mill, 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page