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4.5 MW Other operating in St Mary, LA
4.5 MW
Nameplate Capacity
1
Generators
unit
All Other
Technology
2004
Operating Since
Coordinates
29.7336, -91.4431
County
St Mary, LA
Nearby Plants
Forward-looking, asset-specific exposure analytics combining climate hazards, generation variability, and counterparty risk into a single decision-grade view. Powered by InfraRisk.
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Enterprise Products Optg LP | — | — |
| Owner(s) | Enterprise Products Optg LP | — | — |
| Status | Operating | — | — |
The Neptune Gas Processing Plant, located in St Mary County, Louisiana, is a 4.5 MW power plant operating since 2004. The plant is owned and operated by Enterprise Products Optg LP. It utilizes "OTH" as its primary fuel source and employs "All Other" generation technologies. The plant consists of a single generator.
Neptune Gas Processing Plant operates within the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and the SERC NERC region. In terms of its size relative to other plants using the same primary fuel in Louisiana, it ranks as the 2nd largest of 2 such plants in the state. Nationally, it holds a rank of 4 out of 5 plants using the same fuel. The plant's latest annual generation was 12,110 MWh, achieving a capacity factor of 30.6%.
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
12.47 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Industrial
Sector
Industrial CHP
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.
1.1K MWh
Latest Month
12.1K MWh
Annual Generation
30.6%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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CO₂ Intensity
684 lb/MWh
NOx
2 lb/MWh
SO₂
0.003 lb/MWh
CH₄
0.013 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
28.6%
Annual Net Gen
11 GWh
CO₂eq
685 lb/MWh
Subregion
SPP South
No financial data available for this plant.
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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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Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
LOUISIANA.HUB
Node Source
OSM spatial match
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.
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