County annual report · FIPS 17023
2022 Clark County, IL Power Outage Report
In 2022, customers in Clark County, IL went without power for an average of 4.7 hours, a total of 37K customer-hours (Illinois average 1.6 hours). That ranks 23rd worst of 102 Illinois counties and 1493rd of 2,976 nationally.
Compared with IL, the US and 2021
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Clark County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 5, 2022 11:00 | November 5, 2022 23:30 | 12h 30m | 1,788 | 4,994 |
| 2 | June 28, 2022 09:15 | June 28, 2022 12:30 | 3h 15m | 1,786 | 2,825 |
| 3 | June 17, 2022 12:00 | June 18, 2022 17:30 | 1d 5h | 1,523 | 11K |
| 4 | September 5, 2022 19:15 | September 6, 2022 00:15 | 5h | 1,455 | 3,530 |
| 5 | June 20, 2022 12:15 | June 20, 2022 13:00 | 45m | 794 | 596 |
| 6 | June 9, 2022 08:15 | June 9, 2022 10:30 | 2h 15m | 380 | 557 |
| 7 | September 13, 2022 12:45 | September 13, 2022 20:30 | 7h 45m | 266 | 1,854 |
| 8 | September 15, 2022 12:15 | September 15, 2022 12:45 | 30m | 262 | 131 |
| 9 | August 17, 2022 02:45 | August 17, 2022 04:00 | 1h 15m | 245 | 306 |
| 10 | October 26, 2022 10:00 | October 26, 2022 15:00 | 5h | 245 | 1,123 |
Outage episodes by size in 2022: 25 reached 100+ customers, 4 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 Clark County reported on EIA Form 861 for 2022, 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 | 2022 | 2.7 hrs | 1.02 | 1.9 hrs | 0.88 |
| Ameren | - | - | - | - | - |
| Norris Electric Coop | - | - | - | - | - |
| Coles-Moultrie Electric Coop | - | - | - | - | - |
| Enerstar Power Corp | - | - | - | - | - |
| City of Casey - (IL) | - | - | - | - | - |
| City of Marshall - (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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,829 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. Clark County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clark County, IL annual power outage report, 2022, 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/2022/illinois/clark-county