Mankato Energy Center

Mankato Energy Center is a 741 MW natural gas power plant in Blue Earth County, Minnesota, operated by MEC Holdings, LLC. EIA-860M lists 3 generating units here, inside MISO. Its units entered service between 2006 and 2019.

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
740.8 MW
654 MW net summer
Generating units
3
In service
2006–2019
EIA plant ID
56104

Where it is

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County
Blue Earth County, Minnesota
Coordinates
44.1988, -94.003
Balancing authority
MISO
Sector
IPP Non-CHP

Units, technology and status

Operator of record
MEC Holdings, LLC
Primary energy source
Natural gas
Technologies
Natural Gas Fired Combined Cycle
Status
Operating

Every plant MEC Holdings, LLC reports to EIA →

Mankato Energy Center: FAQ

Where is Mankato Energy Center?
In Blue Earth County, Minnesota (MN). 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 Mankato Energy Center?
741 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Mankato Energy Center?
EIA-860M names MEC Holdings, 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 Mankato Energy Center LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — MEC Holdings, 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 "Mankato Energy Center LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Mankato Energy Center still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.