Brownfield & Retired Power Plant Sites in Louisiana
37 catalogued brownfield and retired-generation sites in Louisiana, listed by former capacity. Each carries an existing utility-scale grid interconnection that a new datacenter load may be able to re-use.
At a glance
What kinds of former sites are in Louisiana?
By former use, the list includes 32 natural gas, 3 biomass, 2 coal. Recorded retirement dates run from January 1997 to December 2024, with 20 retirements in 2015 or later. 37 of 37 sites with a measured distance sit within 2 miles of a transmission substation.
How does Louisiana compare with other states?
Louisiana ranks 18th of 50 states and DC by number of brownfield and retired-generation sites, out of 2,085 nationally. By recorded capacity (9,443 MW) it ranks 8th, against 289,280 MW across all states. The state also has 1,762 scored datacenter candidate sites, 10 of them classed as brownfield sites, averaging 53.2 on the 0–100 DC Readiness scale.
Where in Louisiana are these sites?
- Iberville County · 5
- Orleans County · 3
- St Charles County · 3
- St Mary County · 3
- Ouachita County · 3
- DeSoto County · 2
- Lafayette County · 2
- Calcasieu County · 2
- Pointe Coupee County · 1
- Washington County · 1
- Jefferson County · 1
- Rapides County · 1
- Caddo County · 1
- West Feliciana County · 1
- East Baton Rouge County · 1
- St James County · 1
- Lafourche County · 1
- Plaquemines County · 1
- Terrebonne County · 1
- Jackson County · 1
- Lincoln County · 1
- Iberia County · 1
All brownfield and retired plant sites in Louisiana
| Site | Former use | Capacity | Retired | County |
|---|---|---|---|---|
| Willow Glen | gas | 2,178 MW | 2018-03-01 | Iberville |
| Michoud | gas | 959 MW | 2016-06-01 | Orleans |
| Big Cajun 2 | coal | 730 MW | — | Pointe Coupee |
| Dolet Hills | coal | 721 MW | 2021-12-01 | DeSoto |
| LaO Energy Systems | gas | 715 MW | 2024-12-01 | Iberville |
| Washington Parish Energy Center | gas | 655 MW | — | Washington |
| Waterford 1 & 2 | gas | 446 MW | 2024-03-01 | St Charles |
| Teche | gas | 426 MW | 2024-06-01 | St Mary |
| Sterlington | gas | 415 MW | 2019-01-01 | Ouachita |
| Nine Mile Point | gas | 351 MW | 2016-11-01 | Jefferson |
| Louis Doc Bonin | gas | 341 MW | 2017-04-01 | Lafayette |
| Little Gypsy | gas | 248 MW | 2015-06-01 | St Charles |
| D G Hunter | gas | 175 MW | 2016-03-01 | Rapides |
| R S Nelson | gas | 163 MW | 2017-01-01 | Calcasieu |
| A B Paterson | gas | 149 MW | 2010-09-01 | Orleans |
| Monroe (LA) | gas | 138 MW | 2011-10-01 | Ouachita |
| Plaquemine Operations | gas | 106 MW | 2002-11-01 | Iberville |
| Morgan City | gas | 70 MW | 2015-06-01 | St Mary |
| Lieberman | gas | 50 MW | 2020-05-01 | Caddo |
| St Francisville Mill | gas | 45 MW | 1999-07-01 | West Feliciana |
| Plaquemine | gas | 44 MW | 2015-06-01 | Iberville |
| Rodemacher | gas | 39 MW | 1997-01-01 | Lafayette |
| Formosa Plastics | gas | 38 MW | 2010-01-01 | East Baton Rouge |
| Atlantic Alumina, Gramercy Operations | gas | 32 MW | 2010-02-01 | St James |
| New Orleans | gas | 31 MW | 2010-06-01 | Orleans |
| PCS Nitrogen Fertilizer LP | gas | 26 MW | 2005-12-01 | Iberville |
| Mansfield Mill | gas | 25 MW | 2019-05-01 | DeSoto |
| Thibodaux | gas | 21 MW | 2002-01-01 | Lafourche |
| Buras | gas | 21 MW | 2018-10-01 | Plaquemines |
| Houma | gas | 20 MW | 2010-12-01 | Terrebonne |
| Dow St Charles Operations | gas | 20 MW | 2009-03-01 | St Charles |
| Plant 31 Paper Mill | gas | 18 MW | 2011-01-01 | Ouachita |
| Franklin (LA) | gas | 10 MW | 2015-10-01 | St Mary |
| Westrock Hodge (LA) | biomass | 8 MW | 2015-10-01 | Jackson |
| Louisiana Tech University Power Plant | gas | 8 MW | 2008-02-01 | Lincoln |
| Enterprise Sugar Factory | biomass | 2 MW | 2024-12-01 | Iberia |
| Agrilectric Power Partners Ltd | biomass | 2 MW | 2007-03-01 | Calcasieu |
Frequently asked questions
How many retired power plants are in Louisiana?
GridCensus lists 37 retired power plant sites in Louisiana from EIA-860 retirement records. 35 have a recorded retirement date, 20 of them in 2015 or later.
What is the largest retired power plant or brownfield site in Louisiana?
Willow Glen in St. Gabriel is the largest by recorded capacity, at 2,178 MW. It is followed by Michoud (959.2 MW) and Big Cajun 2 (730 MW).
Which power plant in Louisiana retired most recently?
LaO Energy Systems has the latest recorded retirement date in the state, December 2024, with 714.5 MW of capacity.
Which county in Louisiana has the most brownfield and retired plant sites?
Iberville County has the most, with 5, followed by Orleans County with 3.
Looking for a specific record? The directory lists every brownfield site, A to Z.
More on Louisiana, and states with similar counts
- Datacenter candidate sites in Louisiana· 1,762 sites
- Electric substations in Louisiana· 297 named
- Brownfield candidate sites nationwide
- Brownfield sites by state
- Brownfield sites in Georgia· 37 sites
- Brownfield sites in Connecticut· 36 sites
- Brownfield sites in Missouri· 39 sites
- Brownfield sites in South Carolina· 35 sites
About this data
Source: EIA-860 retired generating units and EPA RE-Powering America's Land contaminated-site records, as published March 6, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Brownfield and retired power plant sites in Louisiana”, https://gridcensus.com/brownfield-sites/louisiana (data as of March 6, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for brownfield sites in Louisiana is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.