County annual report · FIPS 17095
2023 Knox County, IL Power Outage Report
In 2023, customers in Knox County, IL went without power for an average of 7.6 hours, a total of 198K customer-hours (Illinois average 4.0 hours). That ranks 38th worst of 102 Illinois counties and 1061st 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 Knox 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 | December 4, 2023 13:15 | December 4, 2023 22:45 | 9h 30m | 4,608 | 15K |
| 2 | June 29, 2023 15:30 | July 5, 2023 18:00 | 6d 2h | 2,662 | 40K |
| 3 | December 4, 2023 00:45 | December 4, 2023 07:30 | 6h 45m | 2,480 | 6,002 |
| 4 | October 12, 2023 18:15 | October 13, 2023 19:45 | 1d 1h | 2,135 | 33K |
| 5 | March 31, 2023 23:15 | April 2, 2023 03:45 | 1d 4h | 2,113 | 7,360 |
| 6 | May 16, 2023 14:15 | May 16, 2023 21:45 | 7h 30m | 1,931 | 1,200 |
| 7 | May 7, 2023 16:00 | May 10, 2023 04:30 | 2d 12h | 1,599 | 29K |
| 8 | December 3, 2023 11:30 | December 3, 2023 23:45 | 12h 15m | 1,383 | 2,564 |
| 9 | February 16, 2023 20:15 | February 17, 2023 18:00 | 21h 45m | 1,353 | 5,157 |
| 10 | August 5, 2023 08:00 | August 7, 2023 05:15 | 1d 21h | 1,315 | 6,157 |
Outage episodes by size in 2023: 59 reached 100+ customers, 13 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 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 |
| Corn Belt Energy Corporation | 2023 | 6.5 hrs | 4.54 | 2.6 hrs | 3.88 |
| 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 2023; 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, 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/knox-county