County annual report · FIPS 17131
2017 Mercer County, IL Power Outage Report
In 2017, customers in Mercer County, IL went without power for an average of 3.0 hours, a total of 27K customer-hours (Illinois average 1.4 hours). That ranks 17th worst of 102 Illinois counties and 1326th of 2,786 nationally.
Compared with IL, the US and 2016
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Mercer County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 7, 2017 03:00 | March 8, 2017 12:00 | 1d 9h | 3,389 | 12K |
| 2 | December 13, 2017 17:15 | December 13, 2017 22:45 | 5h 30m | 1,100 | 813 |
| 3 | April 29, 2017 19:15 | April 30, 2017 06:15 | 11h | 941 | 2,215 |
| 4 | March 27, 2017 15:00 | March 27, 2017 18:30 | 3h 30m | 600 | 1,059 |
| 5 | May 10, 2017 23:00 | May 11, 2017 01:30 | 2h 30m | 500 | 901 |
| 6 | July 22, 2017 08:00 | July 22, 2017 18:15 | 10h 15m | 396 | 664 |
| 7 | February 21, 2017 03:30 | February 21, 2017 07:30 | 4h | 393 | 1,097 |
| 8 | March 1, 2017 17:00 | March 1, 2017 19:30 | 2h 30m | 378 | 195 |
| 9 | October 19, 2017 20:30 | October 19, 2017 21:30 | 1h | 378 | 378 |
| 10 | July 26, 2017 22:15 | July 27, 2017 09:30 | 11h 15m | 352 | 647 |
Outage episodes by size in 2017: 14 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 Mercer County reported on EIA Form 861 for 2017, 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 | 2017 | 3.2 hrs | 1.12 | 2.0 hrs | 0.90 |
| MidAmerican Energy Co | 2017 | 1.9 hrs | 1.00 | 1.6 hrs | 0.91 |
| 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 n/a of Illinois's customers in 2017; 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, 2017, 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/2017/illinois/mercer-county