County annual report · FIPS 17095
2015 Knox County, IL Power Outage Report
In 2015, customers in Knox County, IL went without power for an average of 7.7 hours, a total of 200K customer-hours (Illinois average 2.3 hours). That ranks 13th worst of 100 Illinois counties and 352nd of 2,484 nationally.
Compared with IL, the US
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Knox County, 2015
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 28, 2015 11:30 | December 31, 2015 00:15 | 2d 12h | 4,503 | 128K |
| 2 | October 22, 2015 23:30 | October 23, 2015 02:15 | 2h 45m | 2,080 | 3,570 |
| 3 | April 29, 2015 14:00 | April 29, 2015 20:30 | 6h 30m | 1,683 | 5,054 |
| 4 | November 12, 2015 00:45 | November 14, 2015 03:30 | 2d 2h | 1,514 | 13K |
| 5 | April 24, 2015 05:00 | April 24, 2015 08:00 | 3h | 1,380 | 4,052 |
| 6 | August 5, 2015 04:30 | August 6, 2015 07:00 | 1d 2h | 1,366 | 4,696 |
| 7 | November 18, 2015 04:15 | November 18, 2015 08:45 | 4h 30m | 1,127 | 2,243 |
| 8 | November 21, 2015 05:00 | November 30, 2015 17:00 | 9d 12h | 1,016 | 11K |
| 9 | May 26, 2015 03:30 | May 26, 2015 22:45 | 19h 15m | 746 | 1,437 |
| 10 | December 2, 2015 16:30 | December 2, 2015 18:30 | 2h | 620 | 169 |
Outage episodes by size in 2015: 39 reached 100+ customers, 8 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 2015, 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 | 2015 | 5.9 hrs | 1.39 | 2.2 hrs | 1.04 |
| Corn Belt Energy Corporation | 2015 | 10.7 hrs | 5.30 | 4.1 hrs | 4.20 |
| 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 2015; 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, 2015, 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/2015/illinois/knox-county