County annual report · FIPS 17145
2020 Perry County, IL Power Outage Report
In 2020, customers in Perry County, IL went without power for an average of 3.1 hours, a total of 37K customer-hours (Illinois average 5.9 hours). That ranks 56th worst of 102 Illinois counties and 1852nd of 3,019 nationally.
Compared with IL, the US and 2019
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Perry County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 11, 2020 00:15 | August 13, 2020 15:45 | 2d 15h | 1,833 | 16K |
| 2 | May 24, 2020 04:45 | May 24, 2020 13:30 | 8h 45m | 705 | 5,123 |
| 3 | May 2, 2020 11:30 | May 2, 2020 15:15 | 3h 45m | 692 | 355 |
| 4 | April 29, 2020 07:00 | April 29, 2020 09:15 | 2h 15m | 590 | 1,327 |
| 5 | July 8, 2020 00:45 | July 8, 2020 07:45 | 7h | 353 | 1,018 |
| 6 | October 16, 2020 03:30 | October 16, 2020 06:45 | 3h 15m | 351 | 263 |
| 7 | March 19, 2020 21:00 | March 20, 2020 09:30 | 12h 30m | 235 | 2,233 |
| 8 | November 15, 2020 05:00 | November 15, 2020 19:30 | 14h 30m | 233 | 371 |
| 9 | March 14, 2020 16:15 | March 14, 2020 23:45 | 7h 30m | 199 | 938 |
| 10 | June 26, 2020 18:00 | June 26, 2020 20:00 | 2h | 166 | 291 |
Outage episodes by size in 2020: 13 reached 100+ customers, 1 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 2020, 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 | 2020 | 3.7 hrs | 1.04 | 1.7 hrs | 0.82 |
| Tri-County Electric Coop, Inc (IL) | 2020 | 2.7 hrs | 1.14 | 83 min | 0.85 |
| 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 94% of Illinois's customers in 2020; 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, 2020, 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/2020/illinois/perry-county