County annual report · FIPS 17107
2021 Logan County, IL Power Outage Report
In 2021, customers in Logan County, IL went without power for an average of 5.6 hours, a total of 61K customer-hours (Illinois average 2.3 hours). That ranks 16th worst of 102 Illinois counties and 1218th of 2,974 nationally.
Compared with IL, the US and 2020
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Logan County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 8, 2021 13:15 | September 8, 2021 17:00 | 3h 45m | 11,438 | 3,751 |
| 2 | October 1, 2021 18:30 | October 1, 2021 20:30 | 2h | 6,726 | 4,755 |
| 3 | November 15, 2021 08:00 | November 15, 2021 11:15 | 3h 15m | 1,971 | 6,405 |
| 4 | October 4, 2021 14:15 | October 4, 2021 17:15 | 3h | 1,395 | 351 |
| 5 | August 2, 2021 05:15 | August 2, 2021 12:00 | 6h 45m | 1,354 | 3,631 |
| 6 | March 18, 2021 17:15 | March 19, 2021 10:45 | 17h 30m | 799 | 1,277 |
| 7 | May 9, 2021 07:45 | May 9, 2021 18:00 | 10h 15m | 649 | 1,507 |
| 8 | January 1, 2021 12:45 | January 6, 2021 06:00 | 4d 17h | 560 | 19K |
| 9 | March 17, 2021 18:45 | March 18, 2021 04:45 | 10h | 553 | 1,254 |
| 10 | June 28, 2021 09:00 | June 29, 2021 03:30 | 18h 30m | 550 | 1,149 |
Outage episodes by size in 2021: 30 reached 100+ customers, 5 reached 1,000+ customers, 1 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 Logan County reported on EIA Form 861 for 2021, 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 | 2021 | 3.2 hrs | 1.11 | 2.0 hrs | 0.88 |
| Corn Belt Energy Corporation | 2021 | 12.3 hrs | 6.64 | 3.7 hrs | 4.71 |
| Menard Electric Coop | 2021 | 7.8 hrs | 2.83 | 2.8 hrs | 1.73 |
| 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 98% of Illinois's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 10,899 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. Logan County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Logan County, IL annual power outage report, 2021, 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/2021/illinois/logan-county