How many power plants does Energy Systems Group operate?

EIA-860M lists 5 operating plants against “Energy Systems Group LLC” for 2026-07, totalling 32 MW of nameplate capacity in 4 states.

Is Energy Systems Group the owner of these plants?

EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.

Why are affiliates listed separately?

Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.

Energy Systems Group power plants

Every generating plant EIA-860M files against Energy Systems Group for 2026-07: 5 plants, 32 MW of nameplate capacity, across 4 states and 3 energy sources.

EIA files this entity as “Energy Systems Group LLC”.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 5
Nameplate capacity: 32 MW
States: 4; IL, TN, TX, WI
Energy sources: 3

Energy Systems Group plants by energy source

Biomass1 plants · 1 MW
Natural gas3 plants · 27 MW
Petroleum1 plants · 4 MW

Full list of Energy Systems Group power plants

Power plants operated by Energy Systems Group LLC

North Chicago Energy CenterNatural Gas Fired Combustion Turbine	Energy Systems Group LLC	Lake	12.4	2	2003	Operating
NASA Johnson Space Center CHPNatural Gas Fired Combustion Turbine	Energy Systems Group LLC	Harris	11.2	2	2018	Operating
Mountain Home Energy CenterPetroleum Liquids	Energy Systems Group LLC	Washington	3.6	2	2002	Standby/Backup
Chicago West Side Energy CenterNatural Gas Fired Combustion Turbine	Energy Systems Group LLC	Cook	3.5	1	2003	Operating
Dairyland WTE PlantOther Waste Biomass	Energy Systems Group LLC	Brown	1.4	2	2012	Out of service and NOT expected to return to service in next calendar year

Energy Systems Group: FAQ

How many power plants does Energy Systems Group operate?: EIA-860M lists 5 operating plants against “Energy Systems Group LLC” for 2026-07, totalling 32 MW of nameplate capacity in 4 states.
Is Energy Systems Group the owner of these plants?: EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.
Why are affiliates listed separately?: Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.