William F Wyman Hybrid

William F Wyman Hybrid is a 863 MW oil-fired power plant in Cumberland County, Maine, operated by FPL Energy Wyman LLC. EIA-860M lists 5 generating units here, inside ISO New England. Its units entered service between 1957 and 2016.

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
862.7 MW
827.1 MW net summer
Generating units
5
In service
1957–2016
EIA plant ID
1507

Where it is

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County
Cumberland County, Maine
Coordinates
43.7508, -70.1567
Balancing authority
ISNE
Sector
IPP Non-CHP

Units, technology and status

Operator of record
FPL Energy Wyman LLC
Primary energy source
Petroleum
Technologies
Batteries, Petroleum Liquids
Status
Operating

This site runs on more than one energy source. EIA-860M capacity splits: Petroleum 846 MW, Battery 17 MW. It is filed here under Petroleum, the source with the most capacity.

Every plant FPL Energy Wyman LLC reports to EIA →

William F Wyman Hybrid: FAQ

Where is William F Wyman Hybrid?
In Cumberland County, Maine (ME). 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 William F Wyman Hybrid?
863 MW of nameplate capacity across 5 units, as of the EIA-860M release for 2026-07.
Who owns William F Wyman Hybrid?
EIA-860M names FPL Energy Wyman 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 William F Wyman Hybrid LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — FPL Energy Wyman 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 "William F Wyman Hybrid LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is William F Wyman Hybrid still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.