County annual report · FIPS 17029
2023 Coles County, IL Power Outage Report
In 2023, customers in Coles County, IL went without power for an average of 5.8 hours, a total of 142K customer-hours (Illinois average 4.0 hours). That ranks 47th worst of 102 Illinois counties and 1313th of 2,977 nationally.
Compared with IL, the US and 2022
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Coles County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 29, 2023 18:30 | July 4, 2023 16:00 | 4d 21h | 9,390 | 124K |
| 2 | June 11, 2023 13:45 | June 11, 2023 15:30 | 1h 45m | 1,974 | 1,975 |
| 3 | July 29, 2023 07:00 | July 29, 2023 09:15 | 2h 15m | 1,003 | 697 |
| 4 | April 1, 2023 02:15 | April 2, 2023 14:15 | 1d 12h | 831 | 3,607 |
| 5 | February 9, 2023 11:30 | February 9, 2023 13:30 | 2h | 655 | 456 |
| 6 | June 2, 2023 18:30 | June 2, 2023 18:45 | 15m | 568 | 142 |
| 7 | July 4, 2023 18:00 | July 4, 2023 21:45 | 3h 45m | 532 | 279 |
| 8 | September 18, 2023 11:45 | September 18, 2023 13:30 | 1h 45m | 342 | 242 |
| 9 | October 30, 2023 06:15 | October 30, 2023 11:15 | 5h | 291 | 987 |
| 10 | January 19, 2023 14:45 | January 19, 2023 15:15 | 30m | 285 | 143 |
Outage episodes by size in 2023: 18 reached 100+ customers, 3 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 Coles County reported on EIA Form 861 for 2023, 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 | 2023 | 9.9 hrs | 1.33 | 1.9 hrs | 0.82 |
| Ameren | - | - | - | - | - |
| Coles-Moultrie Electric Coop | - | - | - | - | - |
| Enerstar Power Corp | - | - | - | - | - |
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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 24,455 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. Coles County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Coles County, IL annual power outage report, 2023, 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/2023/illinois/coles-county