County annual report · FIPS 17179
2018 Tazewell County, IL Power Outage Report
In 2018, customers in Tazewell County, IL went without power for an average of 1.3 hours, a total of 108K customer-hours (Illinois average 2.5 hours). That ranks 79th worst of 102 Illinois counties and 2163rd 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 Tazewell 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 | October 9, 2018 09:45 | October 10, 2018 00:00 | 14h 15m | 3,018 | 792 |
| 2 | August 18, 2018 13:30 | August 19, 2018 04:15 | 14h 45m | 1,806 | 2,115 |
| 3 | July 10, 2018 15:30 | July 10, 2018 19:15 | 3h 45m | 1,800 | 3,152 |
| 4 | October 28, 2018 15:00 | October 29, 2018 15:45 | 1d | 1,724 | 4,666 |
| 5 | October 31, 2018 12:45 | November 1, 2018 02:15 | 13h 30m | 1,685 | 1,421 |
| 6 | July 21, 2018 21:15 | July 22, 2018 13:00 | 15h 45m | 1,547 | 1,591 |
| 7 | December 6, 2018 06:00 | December 6, 2018 12:00 | 6h | 1,546 | 4,108 |
| 8 | February 22, 2018 14:15 | March 6, 2018 01:00 | 11d 10h | 1,403 | 6,412 |
| 9 | July 31, 2018 12:30 | August 1, 2018 02:00 | 13h 30m | 1,389 | 3,053 |
| 10 | August 4, 2018 03:45 | August 9, 2018 16:15 | 5d 12h | 1,218 | 5,174 |
Outage episodes by size in 2018: 91 reached 100+ customers, 11 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 Tazewell 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 |
| Corn Belt Energy Corporation | 2018 | 6.9 hrs | 4.02 | 3.3 hrs | 3.75 |
| Menard Electric Coop | 2018 | 2.9 hrs | 1.75 | 2.9 hrs | 1.75 |
| 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 ÷ 80,878 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. Tazewell County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tazewell 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/tazewell-county