County annual report · FIPS 17115
2025 Macon County, IL Power Outage Report
In 2025, customers in Macon County, IL went without power for an average of 5.1 hours, a total of 230K customer-hours (Illinois average 2.5 hours). That ranks 37th worst of 102 Illinois counties and 1469th 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 Macon 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 | May 16, 2025 00:45 | May 20, 2025 03:45 | 4d 3h | 6,405 | 141K |
| 2 | March 18, 2025 01:15 | March 20, 2025 06:30 | 2d 5h | 5,069 | 3,041 |
| 3 | December 28, 2025 20:15 | December 29, 2025 23:45 | 1d 3h | 2,591 | 17K |
| 4 | May 27, 2025 16:15 | May 27, 2025 17:45 | 1h 30m | 1,688 | 1,840 |
| 5 | March 22, 2025 03:45 | March 22, 2025 07:00 | 3h 15m | 1,603 | 1,719 |
| 6 | January 17, 2025 19:30 | January 17, 2025 22:00 | 2h 30m | 1,581 | 1,093 |
| 7 | March 5, 2025 02:30 | March 5, 2025 12:00 | 9h 30m | 1,363 | 5,416 |
| 8 | July 23, 2025 20:45 | July 25, 2025 15:45 | 1d 19h | 1,353 | 2,549 |
| 9 | November 14, 2025 12:00 | November 15, 2025 10:15 | 22h 15m | 1,333 | 3,306 |
| 10 | June 25, 2025 08:30 | July 3, 2025 18:30 | 8d 10h | 1,112 | 2,938 |
Outage episodes by size in 2025: 65 reached 100+ customers, 11 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 Macon 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 |
|---|---|---|---|---|---|
| Ameren Illinois Company | 2024 | 3.7 hrs | 1.13 | 2.0 hrs | 0.91 |
| Corn Belt Energy Corporation | 2024 | 5.2 hrs | 5.21 | 2.5 hrs | 4.68 |
| Menard Electric Coop | 2024 | 2.8 hrs | 1.49 | 1.9 hrs | 1.27 |
| Ameren | - | - | - | - | - |
| Shelby Electric Coop, Inc | - | - | - | - | - |
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 ÷ 45,051 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. Macon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Macon 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/macon-county