County annual report · FIPS 17113
2025 McLean County, IL Power Outage Report
In 2025, customers in McLean County, IL went without power for an average of 2.4 hours, a total of 193K customer-hours (Illinois average 2.5 hours). That ranks 66th worst of 102 Illinois counties and 2286th 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 McLean 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 | May 16, 2025 21:30 | May 18, 2025 00:30 | 1d 3h | 7,647 | 37K |
| 2 | November 15, 2025 08:00 | December 15, 2025 03:45 | 29d 19h | 4,763 | 9,838 |
| 3 | July 16, 2025 20:00 | July 18, 2025 04:45 | 1d 8h | 4,470 | 21K |
| 4 | March 19, 2025 19:00 | March 20, 2025 06:30 | 11h 30m | 3,180 | 6,730 |
| 5 | August 19, 2025 00:00 | September 26, 2025 06:00 | 38d 6h | 2,987 | 32K |
| 6 | October 23, 2025 12:15 | October 27, 2025 15:45 | 4d 3h | 2,713 | 5,507 |
| 7 | March 28, 2025 14:45 | March 29, 2025 05:00 | 14h 15m | 2,439 | 2,351 |
| 8 | May 20, 2025 07:15 | May 20, 2025 23:00 | 15h 45m | 2,315 | 3,427 |
| 9 | July 6, 2025 07:30 | July 6, 2025 11:00 | 3h 30m | 2,314 | 6,193 |
| 10 | July 25, 2025 15:15 | July 26, 2025 22:00 | 1d 6h | 1,976 | 8,943 |
Outage episodes by size in 2025: 51 reached 100+ customers, 14 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 McLean 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 |
| Corn Belt Energy Corporation | 2024 | 5.2 hrs | 5.21 | 2.5 hrs | 4.68 |
| Eastern Illinois Elec Coop | 2024 | 4.5 hrs | 2.18 | 3.2 hrs | 1.75 |
| Ameren | - | - | - | - | - |
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 ÷ 81,860 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. McLean County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), McLean 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/mclean-county