County annual report · FIPS 17051
2021 Fayette County, IL Power Outage Report
In 2021, customers in Fayette County, IL went without power for an average of 6.8 hours, a total of 49K customer-hours (Illinois average 2.3 hours). That ranks 10th worst of 102 Illinois counties and 1062nd 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 Fayette 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 | May 27, 2021 18:45 | May 27, 2021 22:00 | 3h 15m | 1,264 | 2,528 |
| 2 | December 28, 2021 12:00 | December 28, 2021 14:30 | 2h 30m | 1,191 | 2,406 |
| 3 | October 15, 2021 14:15 | October 16, 2021 17:00 | 1d 2h | 1,166 | 2,560 |
| 4 | December 15, 2021 09:00 | December 15, 2021 13:15 | 4h 15m | 1,089 | 3,109 |
| 5 | May 28, 2021 01:30 | May 28, 2021 08:00 | 6h 30m | 899 | 1,949 |
| 6 | July 17, 2021 12:45 | July 17, 2021 18:30 | 5h 45m | 729 | 3,326 |
| 7 | February 23, 2021 15:30 | February 23, 2021 18:00 | 2h 30m | 701 | 724 |
| 8 | January 12, 2021 22:15 | January 13, 2021 04:00 | 5h 45m | 698 | 969 |
| 9 | July 10, 2021 06:00 | July 10, 2021 21:00 | 15h | 666 | 3,609 |
| 10 | January 7, 2021 13:45 | January 7, 2021 15:45 | 2h | 660 | 1,204 |
Outage episodes by size in 2021: 31 reached 100+ customers, 4 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 Fayette 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 |
| Southwestern Electric Coop Inc - (IL) | 2021 | 3.9 hrs | 2.53 | 3.8 hrs | 2.48 |
| Ameren | - | - | - | - | - |
| Shelby Electric Coop, Inc | - | - | - | - | - |
| Clay Electric Coop Inc | - | - | - | - | - |
| M J M Electric Cooperative Inc | - | - | - | - | - |
| Clinton County Elec 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 98% of Illinois's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,295 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. Fayette County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Fayette 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/fayette-county