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156.5 MW Black Liquor operating in Little River, AR — Southwest Power Pool
156.5 MW
Nameplate Capacity
4
Generators
units
Wood/Wood Waste Biomass
Technology
1968
Operating Since
Coordinates
33.6401, -94.1132
County
Little River, AR
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Domtar Industries Inc | DOMTAR | — |
| Owner(s) | Domtar Industries Inc | Paper Excellence | — |
| Status | Operating | operating | — |
The Ashdown power plant is a 156.5 MW biomass-fueled facility located in Little River County, Arkansas. It began operating in 1968 and consists of 4 generators utilizing wood and wood waste biomass technology. The plant is owned by Paper Excellence, a company based in the Netherlands, and operated by Domtar Industries Inc. Ashdown is the largest biomass plant in Arkansas and ranks second nationally among 13 similar facilities.
In the latest year of reported generation, the plant produced 587,038 MWh of electricity, achieving a capacity factor of 42.9%. The Ashdown plant operates within the Southwest Power Pool (SPP) balancing authority and is situated in the SERC Reliability Corporation (SERC) NERC region. Recent news coverage of the plant has focused primarily on industry-related topics, with some attention to regulatory matters.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Southwest Power Pool (SWPP)
Grid Voltage
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Industrial
Sector
Industrial CHP
49.4K MWh
Latest Month
587.0K MWh
Annual Generation
42.9%
Capacity Factor
CO₂ Intensity
194 lb/MWh
NOx
1 lb/MWh
SO₂
3 lb/MWh
CH₄
0.080 lb/MWh
N₂O
0.025 lb/MWh
Capacity Factor
36.2%
Annual Net Gen
496 GWh
CO₂eq
202 lb/MWh
Subregion
SPP South
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $546.9M
Point of Interconnection
Nearest Substation
Holox Substation · 69 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
—
Pricing Hub
SPP South Hub
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
Last updated 2026-03-26
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