County annual report · FIPS 17027
2025 Clinton County, IL Power Outage Report
In 2025, customers in Clinton County, IL went without power for an average of 8.1 hours, a total of 101K customer-hours (Illinois average 2.5 hours). That ranks 22nd worst of 102 Illinois counties and 1007th of 3,000 nationally.
Compared with IL, the US and 2024
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Clinton County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 2, 2025 18:45 | February 2, 2025 20:45 | 2h | 5,009 | 4,747 |
| 2 | March 15, 2025 00:30 | March 18, 2025 00:15 | 2d 23h | 3,110 | 56K |
| 3 | April 4, 2025 23:30 | April 5, 2025 11:15 | 11h 45m | 1,835 | 2,599 |
| 4 | April 2, 2025 16:30 | April 3, 2025 17:45 | 1d 1h | 1,568 | 8,286 |
| 5 | April 30, 2025 22:30 | May 1, 2025 02:15 | 3h 45m | 1,343 | 2,304 |
| 6 | November 19, 2025 05:15 | November 19, 2025 09:30 | 4h 15m | 759 | 1,750 |
| 7 | July 6, 2025 20:45 | July 7, 2025 05:15 | 8h 30m | 625 | 1,839 |
| 8 | March 18, 2025 12:45 | March 18, 2025 21:00 | 8h 15m | 581 | 291 |
| 9 | April 17, 2025 22:45 | April 17, 2025 23:30 | 45m | 541 | 406 |
| 10 | March 14, 2025 20:15 | March 14, 2025 22:45 | 2h 30m | 486 | 225 |
Outage episodes by size in 2025: 42 reached 100+ customers, 5 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Clinton County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Ameren Illinois Company | 2024 | 3.7 hrs | 1.13 | 2.0 hrs | 0.91 |
| Southwestern Electric Coop Inc - (IL) | 2024 | 5.1 hrs | 2.21 | 4.4 hrs | 1.78 |
| Tri-County Electric Coop, Inc (IL) | 2024 | 6.2 hrs | 2.50 | 64 min | 0.73 |
| Ameren | - | - | - | - | - |
| Clinton County Elec Coop, Inc | - | - | - | - | - |
| City of Highland | - | - | - | - | - |
| City of Breese - (IL) | - | - | - | - | - |
| City of Carlyle - (IL) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Illinois's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 12,465 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Clinton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clinton County, IL annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/illinois/clinton-county