County annual report · FIPS 17099
2016 LaSalle County, IL Power Outage Report
In 2016, customers in LaSalle County, IL went without power for an average of 2.0 hours, a total of 124K customer-hours (Illinois average 1.5 hours). That ranks 50th worst of 100 Illinois counties and 1353rd of 2,391 nationally.
Compared with IL, the US and 2015
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in LaSalle County, 2016
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, 2016 22:00 | May 28, 2016 05:00 | 7h | 4,183 | 11K |
| 2 | June 23, 2016 00:00 | June 23, 2016 10:00 | 10h | 3,927 | 17K |
| 3 | August 26, 2016 04:00 | August 26, 2016 10:00 | 6h | 2,085 | 4,196 |
| 4 | May 10, 2016 15:15 | May 11, 2016 02:15 | 11h | 2,081 | 6,489 |
| 5 | October 29, 2016 14:00 | October 29, 2016 22:00 | 8h | 1,850 | 2,267 |
| 6 | April 2, 2016 15:15 | April 4, 2016 20:45 | 2d 5h | 1,848 | 10K |
| 7 | February 19, 2016 13:30 | February 20, 2016 21:30 | 1d 8h | 1,598 | 9,414 |
| 8 | March 29, 2016 15:30 | March 29, 2016 18:00 | 2h 30m | 1,583 | 849 |
| 9 | September 8, 2016 00:00 | September 8, 2016 19:15 | 19h 15m | 1,576 | 5,309 |
| 10 | June 23, 2016 10:45 | June 24, 2016 06:30 | 19h 45m | 1,426 | 4,816 |
Outage episodes by size in 2016: 60 reached 100+ customers, 13 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 2016, 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 | 2016 | 4.0 hrs | 1.36 | 2.1 hrs | 1.04 |
| Commonwealth Edison Co | 2016 | 1.6 hrs | 0.86 | 63 min | 0.72 |
| Corn Belt Energy Corporation | 2016 | 4.4 hrs | 4.20 | 4.4 hrs | 4.20 |
| 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 n/a of Illinois's customers in 2016; 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, 2016, 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/2016/illinois/lasalle-county