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Willow Glen — Power plant · Gas, steam turbine · Entergy Louisiana LLCGeismar — Postponed · Gas, combustion turbine · LA · 70 MW · 8.6 mi awayCypress Harvest Solar Station — Announced · Solar + storage · LA · 400 MW · 9.2 mi away
  • Combustion
  • Wind & solar
  • In development
  • Retired
  • 10 · 100 · 1,000 MW

Willow Glen

Power plant · Gas, steam turbine

Key facts

Power plant · Gas, steam turbineran 1% of 2016 Retired
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1960
Net generation, 2016
114,083 MWh
Grid
500 kV, 230 kV, 138 kV to Entergy Louisiana LLC (MISO)
Location
Iberville County, Louisiana

Output

Net generation MWh by year, 2001 to 2016
Fuel burned MMBtu by year, 2001 to 2016
  • Gas
  • Oil

Operations detail

Details

Who’s behind it

Owner
Entergy Corp

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Technology
Gas, steam turbine source: “Natural Gas Steam Turbine”
Age
66 years since 1960
All 2 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
EPA greenhouse gas reporting (GHGRP)
EPA FRS ID
110002045885
NAICS code
221112
Subpart PP (CO2 supply)
No
Subpart RR (geologic sequestration)
No
Subpart UU (CO2 injection)
No
Reporting year
2023
GHGRP facility ID
1007294
Balancing authority codeMISO

Retirement

EIA-860M September 2026StatusEvery generator EIA lists at this plant has retired. As of EIA-860M for September 2026.
Retired
March 2018
First unit retired
October 2016
Capacity retired
2,178 MW
Generators retired
5
GeneratorTechnologyNameplateStateDate
1Natural Gas Steam Turbine163.2 MWRetiredOctober 2016
3Natural Gas Steam Turbine591.8 MWRetiredOctober 2016
5Natural Gas Steam Turbine591.8 MWRetiredOctober 2016
2Natural Gas Steam Turbine239.4 MWRetiredMarch 2018
4Natural Gas Steam Turbine591.8 MWRetiredMarch 2018

Grid

EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).
Grid voltage at the plant
500 kV, 230 kV, 138 kV
Transmission or distribution system owner
Entergy Louisiana LLC
Balancing authority
Midcontinent Independent Transmission System Operator, Inc..
NERC region
SERC
Transmission lines within 15 mi (10)
Can the connection be reused?

A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.

Ownership

2 companies2
CompanyRoleShareAs ofSource
Entergy Louisiana LLC Operator EIA-860M
Entergy Corp Owner 100.0% Dec 31, 2023 EPA GHGRP

Timeline

  • Stated Units 2, 4 scheduled to retire, 831.2 MW · EIA-860M
  • Stated Units 1, 3, 5 scheduled to retire, 1,346.8 MW · EIA-860M
  • In service · EIA-860M

Sources

5 sources

Sources EIA-860M · LBNL · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)

Sources

Every source and license · Attribution

View at source

Around this plant

Nearby

within 15 mi
ProjectKindAwayMW
Geismar Postponed Gas, combustion turbine 8.6 mi 70
Cypress Harvest Solar Station Announced Solar + storage 9.2 mi 400

Sources EIA-860M

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026

Attribution