StateRates

Tri-County Electric Coop, Inc (IL) electricity rates

Tri-County Electric Coop, Inc (IL) charges an average of 16.04 cents per kilowatt-hour to residential customers, and the average household on its system paid $190 a month using 1,182 kilowatt-hours, according to its 2024 filing with the U.S. Energy Information Administration.

Member-owned cooperative MISO Illinois

Average rate 16.04¢ per kWh · -32.7% vs state
Average bill $190 per month · +22.0% vs U.S.
Average usage 1,182 kWh per month
Residential customers 16,197 #9 priciest of 27 in Illinois

Where Tri-County Electric Coop, Inc (IL) sits

It is a smaller system, serving 16,197 residential customers, which means its fixed costs are spread across a narrow base. At 16.04¢ per kilowatt-hour it is one of the cheaper places to buy electricity in Illinois, 32.7% under the statewide average of 23.85¢.

Consumption here is high, 1,182 kilowatt-hours a month against a national average of 871. Long cooling seasons, large detached homes and electric resistance heating are the usual causes, and together they matter more to the bill than the rate does.

Owned by the customers it serves, with directors elected by members. Co-ops are frequently outside state rate regulation. That matters because a bill is not only the cost of generating electricity: it also carries the cost of the network, and who owns that network changes how it is paid for.

Tri-County Electric Coop, Inc (IL) against the averages
Rate Monthly bill Monthly kWh
Tri-County Electric Coop, Inc (IL) 16.04¢ $190 1,182
Illinois average 23.85¢ $132 719
United States average 18.44¢ $155 871

Utility figures: U.S. Energy Information Administration, Form EIA-861 annual electric power industry report, 2024. State and national figures: Electric Power Monthly, May 2026. Methodology

Where Tri-County Electric Coop, Inc (IL) delivers

Its service territory covers 10 Illinois counties, either wholly or in part. Utility boundaries follow historic franchise agreements rather than county lines, so a county appearing here does not mean every address in it is served by Tri-County Electric Coop, Inc (IL).

  • Clay
  • Clinton
  • Franklin
  • Hamilton
  • Jefferson
  • Marion
  • Perry
  • St Clair
  • Washington
  • Wayne

How often the power goes out

In 2024 the average Tri-County Electric Coop, Inc (IL) customer went 372 minutes without electricity across 2.5 interruptions. The median across the 941 utilities that report this is 185 minutes.

That is worse than typical. Overhead lines through wooded or storm-exposed terrain are the usual explanation, and the fix is vegetation management and circuit automation, both of which are recovered through rates.

Minutes without power 372 per customer, per year · median 185
Interruptions 2.5 per customer, per year
Average outage length 149 minutes per interruption

Rooftop solar on this system

95 residential customers had net-metered solar in 2024, totalling 0.83 megawatts. That works out to 5.9 installations per thousand customers, against a median of 8 across the utilities reporting it.

Adoption is below the national median. A low retail rate reduces what solar displaces, and export compensation set at avoided cost rather than the retail rate reduces it further. What exports are actually worth.

Other Illinois utilities

Compare against neighbouring systems
Utility Rate Bill Customers
Commonwealth Edison Co 15.22¢ $89 2.9 million
Ameren Illinois Company 15.26¢ $130 520,498
Norris Electric Coop 15.08¢ $170 18,074
Jo-Carroll Energy, Inc 19.79¢ $140 17,227
City of St Charles 15.37¢ $103 14,181

Tri-County Electric Coop, Inc (IL) rates: common questions

How much does Tri-County Electric Coop, Inc (IL) charge per kilowatt-hour?

An average of 16.04 cents per kilowatt-hour across its residential customers in 2024. That is -32.7% against the Illinois average of 23.85¢ and -13.0% against the national average of 18.44¢. It is an all-in average across every residential rate schedule the utility offers, not a specific tariff.

What is the average Tri-County Electric Coop, Inc (IL) bill?

$190 a month, based on total residential revenue divided by residential customers over the 2024 survey year, at an average of 1,182 kWh a month. The national average bill is $155 at 871 kWh.

Who owns Tri-County Electric Coop, Inc (IL)?

It is classified by the EIA as a member-owned cooperative. Owned by the customers it serves, with directors elected by members. Co-ops are frequently outside state rate regulation.

Is Tri-County Electric Coop, Inc (IL) expensive compared with other Illinois utilities?

It ranks #9 of the 27 Illinois utilities covered here, counting from the most expensive. Nationally it ranks #291 of 1369.