Waterford 1 & 2
Waterford 1 & 2 is a 487 MW natural gas power plant in St Charles County, Louisiana, operated by Entergy Louisiana LLC. EIA-860M lists 2 generating units here, inside MISO. Its units entered service between 1975 and 2009.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 486.5 MW
- 449.4 MW net summer
- Generating units
- 2
- In service
- 1975–2009
- EIA plant ID
- 8056
Where it is
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- County
- St Charles County, Louisiana
- Coordinates
- 29.9989, -90.4768
- Balancing authority
- MISO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Entergy Louisiana LLC
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Steam Turbine, Petroleum Liquids
- Status
- Operating (1) · Standby/Backup (1)
This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 446 MW, Petroleum 41 MW. It is filed here under Natural gas, the source with the most capacity.
Waterford 1 & 2: FAQ
- Where is Waterford 1 & 2?
- In St Charles County, Louisiana (LA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Waterford 1 & 2?
- 487 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Waterford 1 & 2?
- EIA-860M names Entergy Louisiana LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Waterford 1 & 2 LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Entergy Louisiana LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Waterford 1 & 2 LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Waterford 1 & 2 still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.