County annual report · FIPS 17109
2023 McDonough County, IL Power Outage Report
In 2023, customers in McDonough County, IL went without power for an average of 13.9 hours, a total of 177K customer-hours (Illinois average 4.0 hours). That ranks 24th worst of 102 Illinois counties and 625th 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 McDonough 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 | June 29, 2023 16:15 | July 5, 2023 00:15 | 5d 8h | 4,645 | 164K |
| 2 | May 8, 2023 00:30 | May 9, 2023 21:15 | 1d 20h | 2,232 | 8,767 |
| 3 | April 20, 2023 20:45 | April 20, 2023 22:15 | 1h 30m | 385 | 577 |
| 4 | August 5, 2023 07:45 | August 5, 2023 11:30 | 3h 45m | 375 | 1,116 |
| 5 | December 4, 2023 15:45 | December 4, 2023 19:15 | 3h 30m | 223 | 776 |
| 6 | November 3, 2023 15:45 | November 3, 2023 21:00 | 5h 15m | 162 | 279 |
| 7 | November 13, 2023 15:30 | November 13, 2023 16:45 | 1h 15m | 162 | 163 |
| 8 | February 26, 2023 12:45 | February 26, 2023 14:15 | 1h 30m | 95 | 119 |
| 9 | May 10, 2023 07:30 | May 10, 2023 10:00 | 2h 30m | 45 | 102 |
| 10 | September 18, 2023 22:45 | September 19, 2023 00:30 | 1h 45m | 40 | 45 |
Outage episodes by size in 2023: 7 reached 100+ customers, 2 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 McDonough 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 |
|---|---|---|---|---|---|
| Ameren Illinois Company | 2023 | 9.9 hrs | 1.33 | 1.9 hrs | 0.82 |
| Adams Electric Coop | 2018 | 2.2 hrs | 1.12 | 2.2 hrs | 1.12 |
| Ameren | - | - | - | - | - |
| McDonough Power Coop | - | - | - | - | - |
| Spoon River Electric Coop, Inc | - | - | - | - | - |
| Western Illinois Elec Coop | - | - | - | - | - |
| City of Bushnell - (IL) | - | - | - | - | - |
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 ÷ 12,745 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. McDonough County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), McDonough 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/mcdonough-county