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899 MW Natural Gas operating in Choctaw, MS
899 MW
Nameplate Capacity
4
Generators
units
Natural Gas Fired Combined Cycle
Technology
2003
Operating Since
Coordinates
33.2881, -89.4201
County
Choctaw, MS
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Entergy Mississippi LLC | Entergy Mississippi | — |
| Owner(s) | Entergy Mississippi LLC | Entergy | — |
| Status | Operating | — | — |
The Choctaw County power plant is located in Choctaw County, Mississippi. It is owned by Entergy and operated by Entergy Mississippi LLC. The plant has a total capacity of 899 MW consisting of four generators using natural gas fired combined cycle technology. The plant began operating in 2003. It is the 5th largest power plant in Mississippi out of 20, and the 206th largest in the United States out of 945.
In the latest year of reported data, the plant generated 4,486,092 MWh, achieving a capacity factor of 62.1%. The plant operates within the Tennessee Valley Authority balancing authority and the SERC NERC region. Financial data indicates an installed cost of $546.47 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Tennessee Valley Authority (TVA)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
582.8K MWh
Latest Month
4.5M MWh
Annual Generation
62.1%
Capacity Factor
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CO₂ Intensity
835 lb/MWh
NOx
0.074 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.015 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
65.3%
Annual Net Gen
5144 GWh
CO₂eq
836 lb/MWh
Subregion
SERC Tennessee Valley
Combined cycle · entergy mississippi, llc · Data from 2020–2024
$564/kW
Installed Cost
$1/kW
Annual CapEx
$20.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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