County annual report · FIPS 17075
2018 Iroquois County, IL Power Outage Report
In 2018, customers in Iroquois County, IL went without power for an average of 2.8 hours, a total of 28K customer-hours (Illinois average 2.5 hours). That ranks 46th worst of 102 Illinois counties and 1589th of 2,798 nationally.
Compared with IL, the US and 2017
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Iroquois County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 4, 2018 05:30 | April 4, 2018 06:30 | 1h | 1,167 | 339 |
| 2 | May 1, 2018 20:30 | May 1, 2018 22:45 | 2h 15m | 1,110 | 869 |
| 3 | January 22, 2018 19:15 | January 22, 2018 22:00 | 2h 45m | 1,040 | 2,405 |
| 4 | May 3, 2018 22:45 | May 4, 2018 16:00 | 17h 15m | 928 | 731 |
| 5 | June 10, 2018 09:30 | June 10, 2018 16:30 | 7h | 890 | 1,648 |
| 6 | July 5, 2018 18:15 | July 6, 2018 02:45 | 8h 30m | 810 | 2,590 |
| 7 | October 12, 2018 21:30 | October 15, 2018 16:15 | 2d 18h | 755 | 271 |
| 8 | October 20, 2018 17:15 | October 21, 2018 15:30 | 22h 15m | 745 | 3,197 |
| 9 | October 31, 2018 13:30 | October 31, 2018 19:15 | 5h 45m | 675 | 355 |
| 10 | September 13, 2018 06:30 | September 13, 2018 08:15 | 1h 45m | 380 | 574 |
Outage episodes by size in 2018: 29 reached 100+ customers, 3 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 Iroquois County reported on EIA Form 861 for 2018, 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 | 2018 | 3.5 hrs | 1.06 | 1.8 hrs | 0.90 |
| Eastern Illinois Elec Coop | 2018 | 3.4 hrs | 2.04 | 2.2 hrs | 1.57 |
| 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 92% of Illinois's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 10,038 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. Iroquois County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Iroquois County, IL annual power outage report, 2018, 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/2018/illinois/iroquois-county