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125 MW Natural Gas operating in Caddo, LA — Southwest Power Pool
125 MW
Nameplate Capacity
1
Generators
unit
Natural Gas Steam Turbine
Technology
1960
Operating Since
Coordinates
32.5172, -93.7635
County
Caddo, LA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Southwestern Electric Power Co | Southwestern Electric Power | — |
| Owner(s) | Southwestern Electric Power Co | American Electric Power Company | — |
| Status | Operating | — | — |
Arsenal Hill is a 125 MW natural gas-fired power plant located in Caddo County, Louisiana. The plant began operating in 1960 and utilizes a single natural gas steam turbine generator. It is owned by American Electric Power Company and operated by Southwestern Electric Power Co. Arsenal Hill is ranked as the 28th largest power plant in Louisiana out of 32, and 868th nationally out of 945 plants.
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, Arsenal Hill generated 192,057 MWh of electricity, achieving a capacity factor of 17.5%.
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
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
6.0K MWh
Latest Month
192.1K MWh
Annual Generation
17.5%
Capacity Factor
CO₂ Intensity
873 lb/MWh
NOx
0.152 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.001 lb/MWh
N₂O
0.000 lb/MWh
Capacity Factor
55.3%
Annual Net Gen
3631 GWh
CO₂eq
873 lb/MWh
Subregion
SPP South
2013
$965/kW
Est. Construction Cost
Total estimated cost: $120.6M
Point of Interconnection
Nearest Substation
Arsenal Hill Substation · 138 kV
Substation Distance
0 km
Operator
Southwestern Electric Power Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
CSWARSENALHILL5
Pricing Hub
SPP South Hub
Location Type
Settlement Location
Node Source
Curated node match
Last updated 2026-03-26
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