County annual report · FIPS 17025
2021 Clay County, IL Power Outage Report
In 2021, customers in Clay County, IL went without power for an average of 0.9 hours, a total of 8,183 customer-hours (Illinois average 2.3 hours). That ranks 97th worst of 102 Illinois counties and 2703rd of 2,974 nationally.
Compared with IL, the US and 2020
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Clay County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 6, 2021 01:30 | February 6, 2021 15:15 | 13h 45m | 924 | 1,559 |
| 2 | June 19, 2021 10:45 | June 19, 2021 13:00 | 2h 15m | 808 | 1,152 |
| 3 | April 29, 2021 13:00 | April 30, 2021 02:15 | 13h 15m | 319 | 4,190 |
| 4 | September 23, 2021 15:30 | September 23, 2021 17:45 | 2h 15m | 92 | 122 |
| 5 | February 5, 2021 01:15 | February 5, 2021 02:45 | 1h 30m | 43 | 65 |
| 6 | June 30, 2021 01:00 | June 30, 2021 03:30 | 2h 30m | 43 | 108 |
| 7 | September 15, 2021 18:15 | September 15, 2021 19:15 | 1h | 42 | 42 |
| 8 | May 10, 2021 22:45 | May 11, 2021 00:45 | 2h | 31 | 62 |
| 9 | June 27, 2021 20:00 | June 27, 2021 20:30 | 30m | 31 | 16 |
| 10 | July 7, 2021 00:45 | July 7, 2021 01:45 | 1h | 29 | 29 |
Outage episodes by size in 2021: 3 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 Clay County reported on EIA Form 861 for 2021, 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 | 2021 | 3.2 hrs | 1.11 | 2.0 hrs | 0.88 |
| Southwestern Electric Coop Inc - (IL) | 2021 | 3.9 hrs | 2.53 | 3.8 hrs | 2.48 |
| Tri-County Electric Coop, Inc (IL) | 2021 | 3.5 hrs | 1.86 | 63 min | 1.09 |
| 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 98% of Illinois's customers in 2021; 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, 2021, 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/2021/illinois/clay-county