Building Energy Group

Illinois home energy: programs, prices and installers

Illinois is served mostly by two electric utilities, ComEd in the north and Ameren Illinois in the center and south, on the PJM and MISO grids.

What electricity costs
18.4 cents per kWhAverage residential price in Illinois, 2025-06 to 2026-05. The price is up 42.3% over five years.Source: EIA Form 861M, trailing 12 months to 2026-05
Energy cost against income
6.11% of incomeAverage household energy spending in Illinois, as a share of median household income, 2024.Source: BEA Regional accounts; Census Bureau American Community Survey 1-year estimates; EIA State Energy Data System, 2024
Rooftop solar
165.9 watts per householdResidential small-scale solar capacity in Illinois, divided by its households, 2024.Source: Census Bureau American Community Survey 1-year estimates; EIA Form 861M small-scale solar, 2024

Start here

One option we recommend is Hungry Machines. Its idea is to shift what you already own first.

Programs in Illinois

The program list for Illinois is being verified, and nothing appears here until it has been checked against its source.

Utilities in Illinois

Each utility's page lists that utility's own programs.

Grid operators

A grid operator runs the high-voltage grid and the wholesale electricity market for its region.

In PJM the dearest hours over the last year were 5, 6 and 7 pm Eastern time. Wholesale, not your bill. See the chart on the PJM page.

In MISO the dearest hours over the last year were 5, 6 and 7 pm Central time. Wholesale, not your bill. See the chart on the MISO page.

Work you can get done

Installers

No installer is listed for Illinois yet. Building Energy Group does not rate installers and publishes no reviews.

Sources