County annual report · FIPS 17049
2021 Effingham County, IL Power Outage Report
In 2021, customers in Effingham County, IL went without power for an average of 2.0 hours, a total of 30K customer-hours (Illinois average 2.3 hours). That ranks 66th worst of 102 Illinois counties and 2220th of 2,974 nationally.
Compared with IL, the US and 2020
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Effingham County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 6, 2021 07:30 | January 6, 2021 15:15 | 7h 45m | 3,874 | 11K |
| 2 | August 12, 2021 21:30 | August 13, 2021 21:00 | 23h 30m | 1,036 | 4,715 |
| 3 | February 7, 2021 06:00 | February 7, 2021 13:45 | 7h 45m | 1,026 | 1,450 |
| 4 | May 17, 2021 15:00 | May 17, 2021 19:15 | 4h 15m | 962 | 541 |
| 5 | March 12, 2021 19:45 | March 13, 2021 00:00 | 4h 15m | 565 | 1,114 |
| 6 | July 24, 2021 20:00 | July 25, 2021 01:45 | 5h 45m | 559 | 487 |
| 7 | October 20, 2021 11:45 | October 20, 2021 13:45 | 2h | 395 | 548 |
| 8 | December 22, 2021 16:15 | December 22, 2021 17:30 | 1h 15m | 395 | 297 |
| 9 | September 27, 2021 12:45 | September 27, 2021 13:30 | 45m | 324 | 243 |
| 10 | December 16, 2021 05:15 | December 16, 2021 11:00 | 5h 45m | 238 | 272 |
Outage episodes by size in 2021: 23 reached 100+ customers, 3 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 Effingham County reported on EIA Form 861 for 2021, 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 | 2021 | 3.2 hrs | 1.11 | 2.0 hrs | 0.88 |
| Southwestern Electric Coop Inc - (IL) | 2021 | 3.9 hrs | 2.53 | 3.8 hrs | 2.48 |
| Ameren | - | - | - | - | - |
| Norris Electric Coop | - | - | - | - | - |
| Shelby Electric Coop, Inc | - | - | - | - | - |
| Clay Electric Coop Inc | - | - | - | - | - |
| City of Altamont - (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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 14,830 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. Effingham County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Effingham County, IL annual power outage report, 2021, 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/2021/illinois/effingham-county