County annual report · FIPS 17099
2022 LaSalle County, IL Power Outage Report
In 2022, customers in LaSalle County, IL went without power for an average of 1.7 hours, a total of 105K customer-hours (Illinois average 1.6 hours). That ranks 69th worst of 102 Illinois counties and 2431st 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 LaSalle 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 | October 12, 2022 07:15 | October 12, 2022 21:30 | 14h 15m | 4,080 | 7,310 |
| 2 | October 31, 2022 04:45 | October 31, 2022 16:15 | 11h 30m | 2,940 | 3,308 |
| 3 | May 2, 2022 10:00 | May 2, 2022 15:00 | 5h | 2,723 | 5,600 |
| 4 | October 6, 2022 04:15 | October 6, 2022 06:45 | 2h 30m | 2,230 | 5,544 |
| 5 | November 5, 2022 11:45 | November 7, 2022 02:45 | 1d 15h | 1,862 | 6,932 |
| 6 | October 30, 2022 23:15 | October 31, 2022 00:45 | 1h 30m | 1,489 | 2,233 |
| 7 | July 7, 2022 06:15 | July 7, 2022 23:00 | 16h 45m | 1,330 | 6,770 |
| 8 | April 30, 2022 16:15 | May 1, 2022 08:15 | 16h | 1,292 | 1,979 |
| 9 | October 25, 2022 15:15 | October 25, 2022 23:15 | 8h | 1,201 | 2,280 |
| 10 | March 30, 2022 16:45 | March 31, 2022 08:00 | 15h 15m | 1,140 | 835 |
Outage episodes by size in 2022: 78 reached 100+ customers, 10 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 LaSalle 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 |
| Commonwealth Edison Co | 2022 | 66 min | 0.63 | 38 min | 0.52 |
| Corn Belt Energy Corporation | 2022 | 2.7 hrs | 3.23 | 2.4 hrs | 3.19 |
| Ameren | - | - | - | - | - |
| City of Oglesby - (IL) | - | - | - | - | - |
| City of Peru - (IL) | - | - | - | - | - |
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 ÷ 63,017 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. LaSalle County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), LaSalle 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/lasalle-county