County annual report · FIPS 17103
2025 Lee County, IL Power Outage Report
In 2025, customers in Lee County, IL went without power for an average of 1.0 hours, a total of 26K customer-hours (Illinois average 2.5 hours). That ranks 92nd worst of 102 Illinois counties and 2748th of 3,000 nationally.
Compared with IL, the US and 2024
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Lee County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 29, 2025 23:30 | September 30, 2025 05:00 | 5h 30m | 8,245 | 3,385 |
| 2 | March 20, 2025 09:00 | March 20, 2025 18:30 | 9h 30m | 1,875 | 662 |
| 3 | May 15, 2025 21:45 | May 17, 2025 00:30 | 1d 2h | 1,264 | 4,320 |
| 4 | July 28, 2025 10:00 | July 28, 2025 14:30 | 4h 30m | 1,261 | 2,036 |
| 5 | March 21, 2025 18:30 | March 21, 2025 21:30 | 3h | 671 | 977 |
| 6 | September 20, 2025 08:30 | September 20, 2025 10:00 | 1h 30m | 526 | 481 |
| 7 | March 14, 2025 22:30 | March 16, 2025 10:15 | 1d 11h | 521 | 2,350 |
| 8 | July 10, 2025 19:30 | July 11, 2025 20:45 | 1d 1h | 487 | 1,549 |
| 9 | December 28, 2025 21:30 | December 28, 2025 22:45 | 1h 15m | 465 | 458 |
| 10 | August 18, 2025 21:45 | August 20, 2025 02:15 | 1d 4h | 447 | 436 |
Outage episodes by size in 2025: 24 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 2025, 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 | 2024 | 2.2 hrs | 0.68 | 36 min | 0.49 |
| Rochelle Municipal Utilities | 2024 | 22 min | 0.53 | - | - |
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 2025; 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, 2025, 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/2025/illinois/lee-county