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68 MW Black Liquor operating in McCurtain, OK — Southwest Power Pool
68 MW
Nameplate Capacity
1
Generators
unit
Wood/Wood Waste Biomass
Technology
1971
Operating Since
Coordinates
33.9961, -95.1114
County
McCurtain, OK
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | International Paper - Valliant | International Paper | — |
| Owner(s) | International Paper - Valliant | International Paper | — |
| Status | Operating | operating | — |
The International Paper Valliant OK plant, located in McCurtain County, Oklahoma, is a biomass-fueled power plant owned and operated by International Paper - Valliant. The plant has a total capacity of 68 MW consisting of a single generator. It commenced operations in 1971 and utilizes wood and wood waste biomass as its primary fuel source (BLQ). The plant operates within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region.
In the most recent year with available data, the International Paper Valliant OK plant generated 397,685 MWh of electricity, achieving a capacity factor of 66.8%. According to available rankings, the plant is the largest of its kind in Oklahoma (1 of 1) and ranks 36th out of 66 similar plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Southwest Power Pool (SWPP)
Grid Voltage
13.8 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Industrial
Sector
Industrial CHP
40.8K MWh
Latest Month
397.7K MWh
Annual Generation
66.8%
Capacity Factor
CO₂ Intensity
123 lb/MWh
NOx
0.741 lb/MWh
SO₂
2 lb/MWh
CH₄
0.088 lb/MWh
N₂O
0.023 lb/MWh
Capacity Factor
66.3%
Annual Net Gen
395 GWh
CO₂eq
132 lb/MWh
Subregion
SPP South
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $237.7M
Market Position
ISO/RTO Market
SPP
LMP Node
—
Pricing Hub
SPP South Hub
Node Source
OSM spatial match
Last updated 2026-03-26
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