County annual report · FIPS 17081
2022 Jefferson County, IL Power Outage Report
In 2022, customers in Jefferson County, IL went without power for an average of 3.0 hours, a total of 68K customer-hours (Illinois average 1.6 hours). That ranks 38th worst of 102 Illinois counties and 1949th of 2,976 nationally.
Compared with IL, the US and 2021
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Jefferson County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 17, 2022 11:30 | June 19, 2022 01:00 | 1d 13h | 2,771 | 34K |
| 2 | August 4, 2022 01:45 | August 4, 2022 12:45 | 11h | 1,147 | 2,432 |
| 3 | July 25, 2022 00:45 | July 25, 2022 03:15 | 2h 30m | 1,096 | 581 |
| 4 | February 17, 2022 19:30 | February 18, 2022 09:45 | 14h 15m | 1,086 | 2,401 |
| 5 | August 8, 2022 12:45 | August 9, 2022 09:30 | 20h 45m | 811 | 4,821 |
| 6 | July 11, 2022 14:00 | July 11, 2022 15:15 | 1h 15m | 614 | 307 |
| 7 | July 2, 2022 18:15 | July 3, 2022 08:30 | 14h 15m | 590 | 1,895 |
| 8 | May 19, 2022 23:45 | May 20, 2022 05:45 | 6h | 546 | 628 |
| 9 | December 6, 2022 20:45 | December 6, 2022 22:00 | 1h 15m | 509 | 636 |
| 10 | June 20, 2022 16:15 | June 20, 2022 20:15 | 4h | 501 | 139 |
Outage episodes by size in 2022: 35 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 Jefferson County reported on EIA Form 861 for 2022, 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 | 2022 | 2.7 hrs | 1.02 | 1.9 hrs | 0.88 |
| Tri-County Electric Coop, Inc (IL) | 2022 | 3.1 hrs | 1.59 | 68 min | 0.71 |
| Ameren | - | - | - | - | - |
| Wayne-White Counties Elec Coop | - | - | - | - | - |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 22,670 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, IL annual power outage report, 2022, 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/2022/illinois/jefferson-county