County annual report · FIPS 17103
2021 Lee County, IL Power Outage Report
In 2021, customers in Lee County, IL went without power for an average of 5.2 hours, a total of 134K customer-hours (Illinois average 2.3 hours). That ranks 20th worst of 102 Illinois counties and 1289th of 2,974 nationally.
Compared with IL, the US and 2020
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Lee County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 10, 2021 23:30 | August 14, 2021 03:15 | 3d 3h | 9,310 | 81K |
| 2 | January 4, 2021 05:15 | January 8, 2021 03:00 | 3d 21h | 5,619 | 20K |
| 3 | January 28, 2021 14:45 | January 28, 2021 15:00 | 15m | 2,054 | 514 |
| 4 | March 15, 2021 18:15 | March 15, 2021 20:30 | 2h 15m | 1,083 | 361 |
| 5 | December 15, 2021 23:45 | December 17, 2021 02:45 | 1d 3h | 897 | 6,534 |
| 6 | January 8, 2021 14:15 | January 8, 2021 15:15 | 1h | 803 | 404 |
| 7 | May 27, 2021 20:15 | May 27, 2021 22:15 | 2h | 665 | 378 |
| 8 | February 10, 2021 17:30 | February 10, 2021 19:30 | 2h | 526 | 137 |
| 9 | October 11, 2021 16:15 | October 11, 2021 22:00 | 5h 45m | 496 | 1,331 |
| 10 | February 28, 2021 19:45 | March 1, 2021 03:45 | 8h | 490 | 554 |
Outage episodes by size in 2021: 38 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 Lee County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Commonwealth Edison Co | 2021 | 1.7 hrs | 0.77 | 43 min | 0.59 |
| Rochelle Municipal Utilities | 2021 | 2.3 hrs | 0.92 | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 25,665 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. Lee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lee County, IL annual power outage report, 2021, 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/2021/illinois/lee-county