County annual report · FIPS 17095
2025 Knox County, IL Power Outage Report
In 2025, customers in Knox County, IL went without power for an average of 3.3 hours, a total of 87K customer-hours (Illinois average 2.5 hours). That ranks 55th worst of 102 Illinois counties and 1947th 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 Knox 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 | July 16, 2025 15:00 | July 16, 2025 17:00 | 2h | 2,148 | 1,710 |
| 2 | April 20, 2025 22:15 | April 22, 2025 13:45 | 1d 15h | 1,970 | 12K |
| 3 | May 2, 2025 19:15 | May 2, 2025 20:15 | 1h | 1,965 | 983 |
| 4 | October 22, 2025 17:00 | October 22, 2025 19:45 | 2h 45m | 1,588 | 401 |
| 5 | July 28, 2025 10:30 | July 28, 2025 18:15 | 7h 45m | 1,426 | 4,096 |
| 6 | August 16, 2025 19:45 | August 17, 2025 20:30 | 1d | 1,295 | 4,257 |
| 7 | January 31, 2025 19:30 | February 1, 2025 02:45 | 7h 15m | 721 | 2,527 |
| 8 | October 20, 2025 12:45 | October 22, 2025 14:45 | 2d 2h | 696 | 2,381 |
| 9 | March 14, 2025 18:45 | March 16, 2025 11:15 | 1d 16h | 682 | 3,397 |
| 10 | July 19, 2025 12:00 | July 21, 2025 00:00 | 1d 12h | 646 | 3,430 |
Outage episodes by size in 2025: 62 reached 100+ customers, 6 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 Knox 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 |
| Ameren | - | - | - | - | - |
| McDonough Power Coop | - | - | - | - | - |
| Spoon River Electric Coop, Inc | - | - | - | - | - |
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 ÷ 25,998 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. Knox County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Knox 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/knox-county