County annual report · FIPS 17093
2025 Kendall County, IL Power Outage Report
In 2025, customers in Kendall County, IL went without power for an average of 1.0 hours, a total of 94K customer-hours (Illinois average 2.5 hours). That ranks 93rd worst of 102 Illinois counties and 2753rd 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 Kendall 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 | August 16, 2025 22:30 | August 20, 2025 03:15 | 3d 4h | 4,737 | 47K |
| 2 | July 24, 2025 20:00 | July 26, 2025 01:00 | 1d 5h | 2,785 | 9,942 |
| 3 | May 28, 2025 05:00 | May 28, 2025 07:00 | 2h | 1,715 | 1,331 |
| 4 | May 19, 2025 22:00 | May 20, 2025 01:15 | 3h 15m | 1,145 | 2,513 |
| 5 | March 12, 2025 15:30 | March 12, 2025 16:00 | 30m | 1,063 | 291 |
| 6 | September 21, 2025 23:15 | September 22, 2025 00:45 | 1h 30m | 1,014 | 258 |
| 7 | July 11, 2025 00:00 | July 11, 2025 10:00 | 10h | 954 | 3,083 |
| 8 | July 10, 2025 12:30 | July 10, 2025 13:45 | 1h 15m | 735 | 905 |
| 9 | July 4, 2025 03:00 | July 4, 2025 06:30 | 3h 30m | 702 | 306 |
| 10 | September 20, 2025 09:15 | September 20, 2025 16:45 | 7h 30m | 633 | 406 |
Outage episodes by size in 2025: 50 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 Kendall 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 |
| Commonwealth Edison Co | 2024 | 2.2 hrs | 0.68 | 36 min | 0.49 |
| Corn Belt Energy Corporation | 2024 | 5.2 hrs | 5.21 | 2.5 hrs | 4.68 |
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 ÷ 92,751 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. Kendall County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Kendall 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/kendall-county