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1433.6 MW Conventional Steam Coal (615 MW) + Natural Gas Steam Turbine (592 MW) + Petroleum Coke (227 MW) operating in Calcasieu, LA
1,433.6 MW
Nameplate Capacity
4
Generators
units
Hybrid (3)
Technology
Conventional Steam Coal + Natural Gas Steam Turbine + Petroleum Coke
1959
Operating Since
Coordinates
30.2844, -93.2911
County
Calcasieu, LA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Entergy Louisiana LLC | Entergy Louisiana | — |
| Owner(s) | CITGO Petroleum Corp, Conoco Inc & BP Amoco, EAM Nelson Holding LLC, East Texas Electric Coop, Inc, Entergy Louisiana LLC, Entergy Texas Inc., SASOL North American Inc, Sam Rayburn G&T Elec Coop Inc | Entergy | — |
| Status | Operating | — | — |
Roy S. Nelson Generating Plant is a coal-fired power plant in Louisiana.
Read more on WikipediaThe R S Nelson power plant, located in Calcasieu County, Louisiana, has a total capacity of 1433.6 MW across four generators. The plant began operating in 1959 and is owned by Entergy, with Entergy Louisiana LLC as the operator. The primary fuel source is petroleum coke (PC), but the plant also utilizes conventional steam coal and natural gas steam turbines. It is considered a hybrid plant due to its multiple fuel sources.
In the latest year for which data is available, the plant generated 1,982,885 MWh, resulting in a capacity factor of 15.7%. The plant operates within the Midcontinent Independent Transmission System Operator, Inc. balancing authority and the SERC NERC region. Financial data indicates an installed cost of $1093.15 per kW, based on FERC filings. The R S Nelson plant is ranked as the largest in the state and the nation.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
230.0 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.
271.7K MWh
Latest Month
2.0M MWh
Annual Generation
15.7%
Capacity Factor
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Steam turbine · Entergy Texas, Inc. · Data from 2015–2024
$1,177/kW
Installed Cost
$1/kW
Annual CapEx
$46.3/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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Market Position
ISO/RTO Market
MISO
LMP Node
EES.NELSON6
Pricing Hub
LOUISIANA.HUB
Alt. Hub / Zone
TEXAS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
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 2026-05-31
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