County annual report · FIPS 17025
2018 Clay County, IL Power Outage Report
In 2018, customers in Clay County, IL went without power for an average of 5.4 hours, a total of 49K customer-hours (Illinois average 2.5 hours). That ranks 17th worst of 102 Illinois counties and 984th 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 Clay 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 | June 2, 2018 10:30 | June 3, 2018 00:45 | 14h 15m | 5,589 | 26K |
| 2 | May 12, 2018 13:30 | May 12, 2018 14:45 | 1h 15m | 2,280 | 2,850 |
| 3 | May 17, 2018 23:30 | May 18, 2018 05:45 | 6h 15m | 1,235 | 4,657 |
| 4 | February 21, 2018 20:00 | February 21, 2018 22:15 | 2h 15m | 764 | 1,380 |
| 5 | June 15, 2018 16:45 | June 15, 2018 19:00 | 2h 15m | 636 | 161 |
| 6 | May 31, 2018 16:15 | June 1, 2018 10:00 | 17h 45m | 631 | 7,280 |
| 7 | November 21, 2018 00:45 | November 21, 2018 02:45 | 2h | 601 | 602 |
| 8 | June 6, 2018 20:30 | June 6, 2018 23:15 | 2h 45m | 350 | 463 |
| 9 | August 21, 2018 05:45 | August 21, 2018 08:00 | 2h 15m | 339 | 272 |
| 10 | June 29, 2018 00:00 | June 29, 2018 06:00 | 6h | 335 | 625 |
Outage episodes by size in 2018: 16 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 Clay 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 |
| Southwestern Electric Coop Inc - (IL) | 2018 | 4.6 hrs | 1.89 | 4.6 hrs | 1.89 |
| Tri-County Electric Coop, Inc (IL) | 2018 | 4.7 hrs | 1.74 | 83 min | 0.81 |
| Wayne-White Counties Elec Coop | - | - | - | - | - |
| Norris Electric Coop | - | - | - | - | - |
| Clay Electric Coop Inc | - | - | - | - | - |
| City of Flora - (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 92% of Illinois's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,085 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. Clay County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clay 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/clay-county