Natural gasOperatingMISO

Port Allen (LA)

Natural gas power plant in West Baton Rouge Parish, Louisiana. 7.6 MW of nameplate capacity across 2 generators, operated by Placid Refining Co LLC.

Also known as EIA plant 50389

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ExxonMobil Baton Roug…Formosa PlasticsLSU CogenLA3 West Baton Rouge…Port Allen (LA)5 km
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5 plants within 12 km, from EIA coordinates.

Key facts

Capacity
7.6 MWNameplate
Generators
2 operatingEIA-860M, August 2026
Operating since
May 1990First generator online
Operator
Placid Refining Co LLCEIA operator ID 15173
Grid
MISOBalancing authority MISO
Price nodes
None linkedNo verified ISO node
Location
West Baton Rouge Parish, LA30.4770, −91.2110
EIA plant ID
50389EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Port Allen (LA) produces

Free · EIA-923

Net generation, 2025

49.8 GWh

49,845 MWh, final

Capacity factor, 2025

74.9%

2024: 65.1%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

32.4–53.8

GWh a year. Low 2022, high 2019

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
200158,564Not reported12 of 12
200259,750Not reported12 of 12
200356,322Not reported12 of 12
200456,666Not reported12 of 12
200554,527Not reported12 of 12
200657,267Not reported12 of 12
200754,089Not reported12 of 12
200840,345Not reported12 of 12
200953,240Not reported12 of 12
201050,30675.6%12 of 12
201150,85576.4%12 of 12
201249,87974.7%12 of 12
201348,35372.6%12 of 12
201442,61764.0%12 of 12
201551,58277.5%12 of 12
201649,04673.5%12 of 12
201749,54174.4%12 of 12
201851,27277.0%12 of 12
201953,77780.8%12 of 12
202050,84776.2%12 of 12
202141,07561.7%12 of 12
202232,42348.7%12 of 12
202348,63373.0%12 of 12
202443,43065.1%12 of 12
202549,84574.9%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 of 7

* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.

Power prices and basis

Free account

No verified ISO price node is linked to this plant, or its price history could not load.

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
GEN1Natural Gas Fired Combustion Turbine3.8May 1990
GEN2Natural Gas Fired Combustion Turbine3.8May 1990

Ownership and offtake

Pro
Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Placid Refining Co LLC as the operator, which is not always the owner.

Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Modeled

Generation potential vs reported

Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.

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Power plants near Port Allen (LA)

Questions about Port Allen (LA)

How much power does Port Allen (LA) produce?

Port Allen (LA) reported 49,845 MWh (49.8 GWh) of net generation in 2025, a 74.9% capacity factor on 7.6 MW of nameplate capacity.

Where is Port Allen (LA)?

Port Allen (LA) is in West Baton Rouge Parish, Louisiana, at 30.4770, −91.2110. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).

Who operates Port Allen (LA)?

EIA-860M for August 2026 lists Placid Refining Co LLC as the operator (EIA operator ID 15173). The operator is not always the owner.

When did Port Allen (LA) start operating?

Its first generator began operating in May 1990, according to EIA-860M.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page