County annual report · FIPS 17145
2025 Perry County, IL Power Outage Report
In 2025, customers in Perry County, IL went without power for an average of 13.0 hours, a total of 156K customer-hours (Illinois average 2.5 hours). That ranks 9th worst of 102 Illinois counties and 594th of 3,000 nationally.
Compared with IL, the US and 2024
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Perry County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 14, 2025 20:45 | March 18, 2025 17:30 | 3d 20h | 5,170 | 108K |
| 2 | October 19, 2025 10:15 | October 20, 2025 11:00 | 1d | 2,582 | 16K |
| 3 | April 25, 2025 05:45 | April 25, 2025 10:15 | 4h 30m | 995 | 3,238 |
| 4 | November 7, 2025 05:15 | November 7, 2025 10:30 | 5h 15m | 716 | 3,594 |
| 5 | November 26, 2025 04:45 | November 26, 2025 12:15 | 7h 30m | 504 | 3,523 |
| 6 | January 16, 2025 14:15 | January 16, 2025 18:45 | 4h 30m | 503 | 543 |
| 7 | October 24, 2025 04:15 | October 24, 2025 11:30 | 7h 15m | 502 | 3,640 |
| 8 | April 3, 2025 13:45 | April 3, 2025 17:15 | 3h 30m | 491 | 131 |
| 9 | October 8, 2025 14:15 | October 8, 2025 15:45 | 1h 30m | 485 | 243 |
| 10 | July 5, 2025 13:30 | July 5, 2025 23:45 | 10h 15m | 393 | 1,640 |
Outage episodes by size in 2025: 28 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 2025, 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 | 2024 | 3.7 hrs | 1.13 | 2.0 hrs | 0.91 |
| Egyptian Electric Coop Assn | 2024 | 2.1 hrs | - | - | - |
| Tri-County Electric Coop, Inc (IL) | 2024 | 6.2 hrs | 2.50 | 64 min | 0.73 |
| Ameren | - | - | - | - | - |
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 2025; 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, 2025, 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/2025/illinois/perry-county