County annual report · FIPS 17131
2022 Mercer County, IL Power Outage Report
In 2022, customers in Mercer County, IL went without power for an average of 3.7 hours, a total of 33K customer-hours (Illinois average 1.6 hours). That ranks 32nd worst of 102 Illinois counties and 1729th of 2,976 nationally.
Compared with IL, the US and 2021
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Mercer County, 2022
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 13, 2022 14:45 | August 13, 2022 22:15 | 7h 30m | 902 | 5,641 |
| 2 | May 3, 2022 06:15 | May 3, 2022 09:00 | 2h 45m | 896 | 1,122 |
| 3 | October 21, 2022 23:15 | October 22, 2022 12:00 | 12h 45m | 892 | 926 |
| 4 | October 11, 2022 15:30 | October 11, 2022 22:15 | 6h 45m | 890 | 2,527 |
| 5 | August 15, 2022 14:00 | August 15, 2022 16:15 | 2h 15m | 747 | 1,109 |
| 6 | March 30, 2022 17:15 | March 31, 2022 00:15 | 7h | 525 | 408 |
| 7 | May 13, 2022 14:00 | May 15, 2022 00:00 | 1d 10h | 492 | 855 |
| 8 | June 24, 2022 12:00 | June 27, 2022 23:15 | 3d 11h | 406 | 1,061 |
| 9 | November 5, 2022 00:00 | November 5, 2022 06:15 | 6h 15m | 381 | 438 |
| 10 | April 14, 2022 20:00 | April 15, 2022 05:00 | 9h | 379 | 952 |
Outage episodes by size in 2022: 33 reached 100+ customers, 0 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 Mercer County reported on EIA Form 861 for 2022, 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 | 2022 | 2.7 hrs | 1.02 | 1.9 hrs | 0.88 |
| MidAmerican Energy Co | 2022 | 1.8 hrs | 1.03 | 87 min | 0.88 |
| Ameren | - | - | - | - | - |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,972 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. Mercer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mercer County, IL annual power outage report, 2022, 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/2022/illinois/mercer-county