County annual report · FIPS 17115
2021 Macon County, IL Power Outage Report
In 2021, customers in Macon County, IL went without power for an average of 2.8 hours, a total of 126K customer-hours (Illinois average 2.3 hours). That ranks 49th worst of 102 Illinois counties and 1925th 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 Macon 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 29, 2021 17:45 | August 30, 2021 16:00 | 22h 15m | 4,543 | 13K |
| 2 | March 10, 2021 16:00 | March 11, 2021 06:15 | 14h 15m | 3,389 | 8,285 |
| 3 | March 18, 2021 11:30 | March 19, 2021 11:45 | 1d | 2,622 | 11K |
| 4 | August 25, 2021 20:30 | August 26, 2021 00:30 | 4h | 2,216 | 929 |
| 5 | April 16, 2021 13:15 | April 16, 2021 16:30 | 3h 15m | 2,043 | 833 |
| 6 | July 17, 2021 18:15 | July 17, 2021 22:15 | 4h | 1,586 | 2,788 |
| 7 | September 22, 2021 14:15 | September 24, 2021 07:15 | 1d 17h | 1,561 | 3,356 |
| 8 | April 26, 2021 15:00 | April 27, 2021 04:30 | 13h 30m | 1,411 | 709 |
| 9 | January 3, 2021 06:00 | January 6, 2021 06:00 | 3d | 1,355 | 12K |
| 10 | April 13, 2021 12:15 | April 13, 2021 16:15 | 4h | 1,204 | 1,303 |
Outage episodes by size in 2021: 75 reached 100+ customers, 14 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 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 |
|---|---|---|---|---|---|
| Ameren Illinois Company | 2021 | 3.2 hrs | 1.11 | 2.0 hrs | 0.88 |
| Corn Belt Energy Corporation | 2021 | 12.3 hrs | 6.64 | 3.7 hrs | 4.71 |
| Menard Electric Coop | 2021 | 7.8 hrs | 2.83 | 2.8 hrs | 1.73 |
| 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 98% of Illinois's customers in 2021; 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, 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/macon-county