Tri-County Electric Co-op, Inc (IL) electricity rates
Electric cooperative · Illinois · RFC region · MISO
Tri-County Electric Co-op, Inc (IL) is a member-owned electric cooperative, so its customers own it and elect its board, serving 16,203 homes in Illinois. Its residential customers pay an average of 17.18¢/kWh including fixed and delivery charges, 5% less than the U.S. average.
Rate basis: EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend.
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Tri-County Electric Co-op, Inc (IL) bill estimates
| Monthly use | At average all-in rate |
|---|---|
| 500 kWh | $85.90 |
| 1,000 kWh | $171.80 |
| 1,500 kWh | $257.70 |
| 2,000 kWh | $343.60 |
Tri-County Electric Co-op, Inc (IL) rate history
2015–2025: +14% change in the average residential rate (14.16¢ → 16.18¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | Tri-County Electric Co-op, Inc (IL) | Illinois avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 132 | 148 | 266 |
| Outages per customer (SAIFI) | 1.64 | 0.87 | 1.34 |
| Average restoration time (CAIDI) | 80 min | — | — |
| Outage minutes excluding major storms | 63 | 63 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Tri-County Electric Co-op, Inc (IL)'s counties, customers averaged 6 hr 14 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Perry | 782 | 42 | 5,170 | 2025-03-15 |
| Franklin | 605 | 44 | 8,033 | 2025-10-08 |
| Clinton | 486 | 65 | 5,009 | 2025-02-02 |
| Hamilton | 417 | 35 | 486 | 2025-01-07 |
| St Clair | 398 | 66 | 18,062 | 2025-03-15 |
| Washington | 289 | 39 | 3,750 | 2025-01-06 |
| Marion | 274 | 38 | 2,248 | 2025-05-30 |
| Wayne | 139 | 32 | 2,233 | 2025-03-15 |
| Jefferson | 130 | 35 | 1,540 | 2025-04-29 |
| Clay | 41 | 14 | 816 | 2025-09-20 |
Tri-County Electric Co-op, Inc (IL) service area
Tri-County Electric Co-op, Inc (IL) serves 10 counties in Illinois and 54 ZIP codes.
Clay, Clinton, Franklin, Hamilton, Jefferson, Marion, Perry, St Clair, Washington, Wayne
Cities: Belleville, East Saint Louis, Mount Vernon, Centralia, Mascoutah, Salem, Pinckneyville, New Baden, Carlyle, Nashville, Ina, Marissa, Okawville, Sandoval, Albers, Wamac, Odin
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Customers with daily usage data online | 16,155 |
| Time-based rate programs | None reported |
| Net-metered solar homes | 95 |
| Home batteries paired with solar | 1 |
Tri-County Electric Co-op, Inc (IL) at a glance
| Ownership | Electric cooperative |
| Services | Distribution |
| Commercial rate | 14.68¢/kWh |
| Industrial rate | 10.52¢/kWh |
| Retail revenue (2025) | $55,220,600 |
| Electricity sold (2025) | 391,319 MWh |
| Peak demand | 84 MW summer · 82 MW winter |
| Power from own generation | 0% (rest purchased) |
| Line losses | 4.2% |
| Balancing authority | MISO |
| EIA utility ID | 18955 |
Other utilities in Illinois
Frequently asked questions
What is Tri-County Electric Co-op, Inc (IL)'s electricity rate?
Tri-County Electric Co-op, Inc (IL) residential customers pay an average of 17.18¢ per kWh, all charges included (EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend). That's 9% below the Illinois average of 18.79¢ and 5% below the U.S. average.
What is the average Tri-County Electric Co-op, Inc (IL) electric bill?
About $213 a month. The average Tri-County Electric Co-op, Inc (IL) home uses 1,241 kWh a month. At 1,000 kWh the bill would be about $172.
How many customers does Tri-County Electric Co-op, Inc (IL) have?
Tri-County Electric Co-op, Inc (IL) serves 16,203 residential customers and 16,612 customers in total in Illinois, across 10 counties.
How reliable is Tri-County Electric Co-op, Inc (IL)?
In 2025, the average Tri-County Electric Co-op, Inc (IL) customer was without power for 2 hr 12 min (SAIDI) over 1.64 interruptions (SAIFI), including major storms. Excluding major event days it was 63 min. The Illinois average was 2 hr 28 min and the U.S. average 4 hr 26 min.
Does Tri-County Electric Co-op, Inc (IL) offer net metering for solar?
Tri-County Electric Co-op, Inc (IL) had 95 residential net-metered customers in 2025 with 0.8 MW of capacity and 1 solar-paired batteries. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Tri-County Electric Co-op, Inc (IL) before making decisions.