County annual report · FIPS 17135
2019 Montgomery County, IL Power Outage Report
In 2019, customers in Montgomery County, IL went without power for an average of 4.8 hours, a total of 49K customer-hours (Illinois average 1.8 hours). That ranks 24th worst of 102 Illinois counties and 1146th of 2,945 nationally.
Compared with IL, the US and 2018
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Montgomery County, 2019
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 24, 2019 05:00 | February 24, 2019 23:45 | 18h 45m | 1,871 | 8,115 |
| 2 | March 9, 2019 14:15 | March 9, 2019 21:45 | 7h 30m | 1,708 | 2,612 |
| 3 | October 11, 2019 15:30 | October 11, 2019 20:45 | 5h 15m | 1,514 | 844 |
| 4 | June 16, 2019 06:15 | June 16, 2019 18:15 | 12h | 1,384 | 3,767 |
| 5 | April 29, 2019 13:30 | April 29, 2019 23:15 | 9h 45m | 1,014 | 1,336 |
| 6 | January 15, 2019 13:45 | January 15, 2019 20:30 | 6h 45m | 661 | 1,605 |
| 7 | April 30, 2019 21:45 | May 1, 2019 09:30 | 11h 45m | 633 | 1,347 |
| 8 | May 23, 2019 01:30 | May 23, 2019 16:15 | 14h 45m | 576 | 636 |
| 9 | January 26, 2019 17:45 | January 26, 2019 18:45 | 1h | 569 | 569 |
| 10 | August 10, 2019 19:30 | August 11, 2019 03:00 | 7h 30m | 558 | 2,234 |
Outage episodes by size in 2019: 37 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 2019, 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 | 2018 | 3.5 hrs | 1.06 | 1.8 hrs | 0.90 |
| Southwestern Electric Coop Inc - (IL) | 2018 | 4.6 hrs | 1.89 | 4.6 hrs | 1.89 |
| 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 99% of Illinois's customers in 2019; 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, 2019, 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/2019/illinois/montgomery-county