Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
54 MW Black Liquor operating in Elk, PA — PJM Interconnection, LLC
54 MW
Nameplate Capacity
1
Generators
unit
Wood/Wood Waste Biomass
Technology
1993
Operating Since
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Domtar LLC | DOMTAR Corp | — |
| Owner(s) | Domtar LLC | Paper Excellence | — |
| Status | Operating | operating | — |
The Johnsonburg Mill is a 54 MW biomass power plant located in Elk County, Pennsylvania. The plant began operating in 1993 and has one generator. The primary fuel source is black liquor (BLQ), and the technology is classified as Wood/Wood Waste Biomass. The plant is owned by Paper Excellence, a company based in the Netherlands, and operated by Domtar LLC.
In the most recent year with available data, the Johnsonburg Mill generated 40,626 MWh of electricity, resulting in a capacity factor of 8.5%. The plant operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. Among biomass plants in Pennsylvania, the Johnsonburg Mill is ranked 1 of 1, and it is ranked 44 of 66 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
18.4K MWh
Latest Month
40.6K MWh
Annual Generation
8.5%
Capacity Factor
CO₂ Intensity
0 lb/MWh
NOx
1 lb/MWh
SO₂
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $188.7M
Market Position
ISO/RTO Market
PJM
LMP Node
50785
Pricing Hub
WESTERN HUB
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Johnsonburg MillPJM Interconnection, LLC (PJM)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Industrial
Sector
Industrial CHP
2 lb/MWh
CH₄
0.029 lb/MWh
N₂O
0.017 lb/MWh
Capacity Factor
13.8%
Annual Net Gen
65 GWh
CO₂eq
5 lb/MWh
Subregion
RFC West