Mother Ann Lee

Mother Ann Lee is a 2 MW hydroelectric power plant in Mercer County, Kentucky, operated by Lock 7 Hydro Partners LLC. EIA-860M lists 3 generating units here, inside PJM. Its units entered service between 2007 and 2008.

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
2.1 MW
2.3 MW net summer
Generating units
3
In service
2007–2008
EIA plant ID
1359

Where it is

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County
Mercer County, Kentucky
Coordinates
37.8297, -84.7247
Balancing authority
PJM
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Lock 7 Hydro Partners LLC
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant Lock 7 Hydro Partners LLC reports to EIA →

Mother Ann Lee: FAQ

Where is Mother Ann Lee?
In Mercer County, Kentucky (KY). 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 Mother Ann Lee?
2 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Mother Ann Lee?
EIA-860M names Lock 7 Hydro Partners 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 Mother Ann Lee LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Lock 7 Hydro Partners 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 "Mother Ann Lee LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Mother Ann Lee still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.