County annual report · FIPS 17135
2022 Montgomery County, IL Power Outage Report
In 2022, customers in Montgomery County, IL went without power for an average of 11.2 hours, a total of 116K customer-hours (Illinois average 1.6 hours). That ranks 2nd worst of 102 Illinois counties and 631st 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 Montgomery 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 | February 2, 2022 09:30 | February 4, 2022 05:00 | 1d 19h | 3,207 | 24K |
| 2 | June 17, 2022 10:30 | June 20, 2022 11:30 | 3d 1h | 3,049 | 52K |
| 3 | August 16, 2022 08:45 | August 16, 2022 17:30 | 8h 45m | 1,911 | 5,295 |
| 4 | April 30, 2022 02:00 | April 30, 2022 11:45 | 9h 45m | 1,301 | 2,029 |
| 5 | May 11, 2022 17:15 | May 12, 2022 09:15 | 16h | 1,200 | 10K |
| 6 | August 28, 2022 23:30 | August 29, 2022 03:15 | 3h 45m | 571 | 473 |
| 7 | February 11, 2022 12:30 | February 11, 2022 14:45 | 2h 15m | 553 | 693 |
| 8 | July 31, 2022 20:45 | August 1, 2022 03:15 | 6h 30m | 523 | 2,903 |
| 9 | May 20, 2022 00:00 | May 20, 2022 17:45 | 17h 45m | 452 | 4,773 |
| 10 | January 2, 2022 08:00 | January 2, 2022 22:15 | 14h 15m | 424 | 3,469 |
Outage episodes by size in 2022: 15 reached 100+ customers, 5 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 Montgomery 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 |
| Southwestern Electric Coop Inc - (IL) | 2022 | 10.8 hrs | 3.45 | 7.2 hrs | 2.88 |
| Rural Electric Conven Coop | 2018 | 4.0 hrs | 1.91 | 2.0 hrs | 1.84 |
| Ameren | - | - | - | - | - |
| Shelby Electric Coop, Inc | - | - | - | - | - |
| M J M Electric Cooperative 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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 10,344 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. Montgomery County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montgomery 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/montgomery-county