County annual report · FIPS 17103
2023 Lee County, IL Power Outage Report
In 2023, customers in Lee County, IL went without power for an average of 15.1 hours, a total of 387K customer-hours (Illinois average 4.0 hours). That ranks 23rd worst of 102 Illinois counties and 575th of 2,977 nationally.
Compared with IL, the US and 2022
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Lee County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 28, 2023 08:00 | July 31, 2023 02:30 | 2d 18h | 9,505 | 82K |
| 2 | April 1, 2023 00:30 | April 4, 2023 02:45 | 3d 2h | 8,782 | 278K |
| 3 | April 4, 2023 16:00 | April 6, 2023 01:45 | 1d 9h | 3,531 | 10K |
| 4 | February 22, 2023 20:15 | February 25, 2023 02:00 | 2d 5h | 666 | 3,600 |
| 5 | May 8, 2023 01:15 | May 8, 2023 18:45 | 17h 30m | 584 | 1,988 |
| 6 | July 27, 2023 00:30 | July 27, 2023 02:15 | 1h 45m | 501 | 592 |
| 7 | September 2, 2023 16:45 | September 2, 2023 20:00 | 3h 15m | 455 | 308 |
| 8 | October 21, 2023 02:30 | October 21, 2023 03:30 | 1h | 454 | 115 |
| 9 | April 20, 2023 19:45 | April 20, 2023 21:45 | 2h | 439 | 294 |
| 10 | May 1, 2023 19:45 | May 1, 2023 22:30 | 2h 45m | 421 | 266 |
Outage episodes by size in 2023: 22 reached 100+ customers, 3 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 2023, 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 | 2023 | 1.6 hrs | 0.61 | 35 min | 0.48 |
| Rochelle Municipal Utilities | 2023 | 11 min | 0.29 | - | - |
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 2023; 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, 2023, 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/2023/illinois/lee-county