County annual report · FIPS 17145
2018 Perry County, IL Power Outage Report
In 2018, customers in Perry County, IL went without power for an average of 6.7 hours, a total of 80K customer-hours (Illinois average 2.5 hours). That ranks 13th worst of 102 Illinois counties and 823rd 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 Perry 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 | May 31, 2018 14:45 | June 4, 2018 14:45 | 4d | 4,349 | 25K |
| 2 | June 29, 2018 00:00 | July 3, 2018 12:15 | 4d 12h | 1,951 | 36K |
| 3 | September 8, 2018 09:00 | September 8, 2018 20:15 | 11h 15m | 774 | 2,519 |
| 4 | February 25, 2018 05:30 | February 25, 2018 19:15 | 13h 45m | 696 | 3,605 |
| 5 | October 31, 2018 10:30 | October 31, 2018 17:00 | 6h 30m | 494 | 873 |
| 6 | November 10, 2018 01:30 | November 10, 2018 06:15 | 4h 45m | 493 | 991 |
| 7 | July 15, 2018 01:15 | July 16, 2018 18:00 | 1d 16h | 374 | 1,340 |
| 8 | December 24, 2018 02:45 | December 24, 2018 08:00 | 5h 15m | 370 | 1,614 |
| 9 | July 31, 2018 13:00 | July 31, 2018 15:15 | 2h 15m | 342 | 170 |
| 10 | June 27, 2018 00:15 | June 27, 2018 03:30 | 3h 15m | 317 | 524 |
Outage episodes by size in 2018: 15 reached 100+ customers, 2 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 Perry 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 |
| Tri-County Electric Coop, Inc (IL) | 2018 | 4.7 hrs | 1.74 | 83 min | 0.81 |
| Ameren | - | - | - | - | - |
| Egyptian Electric Coop Assn | - | - | - | - | - |
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 ÷ 11,975 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. Perry County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Perry 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/perry-county