County annual report · FIPS 17023
2016 Clark County, IL Power Outage Report
In 2016, customers in Clark County, IL went without power for an average of 1.0 hours, a total of 8,001 customer-hours (Illinois average 1.5 hours). That ranks 72nd worst of 100 Illinois counties and 1767th of 2,391 nationally.
Compared with IL, the US and 2015
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Clark County, 2016
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 15, 2016 21:00 | June 16, 2016 04:30 | 7h 30m | 687 | 4,810 |
| 2 | December 27, 2016 14:00 | December 27, 2016 15:30 | 1h 30m | 665 | 831 |
| 3 | May 18, 2016 02:15 | May 18, 2016 04:15 | 2h | 363 | 636 |
| 4 | October 19, 2016 21:00 | October 19, 2016 22:00 | 1h | 336 | 172 |
| 5 | October 20, 2016 18:30 | October 20, 2016 19:00 | 30m | 336 | 168 |
| 6 | July 16, 2016 15:30 | July 16, 2016 17:30 | 2h | 323 | 374 |
| 7 | September 23, 2016 01:00 | September 23, 2016 02:30 | 1h 30m | 296 | 233 |
| 8 | February 25, 2016 03:30 | February 25, 2016 04:30 | 1h | 128 | 122 |
| 9 | February 24, 2016 17:30 | February 25, 2016 02:30 | 9h | 98 | 115 |
| 10 | April 2, 2016 19:30 | April 3, 2016 01:15 | 5h 45m | 28 | 131 |
Outage episodes by size in 2016: 8 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 Clark County reported on EIA Form 861 for 2016, 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 | 2016 | 4.0 hrs | 1.36 | 2.1 hrs | 1.04 |
| 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 n/a of Illinois's customers in 2016; 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, 2016, 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/2016/illinois/clark-county