County annual report · FIPS 17173
2020 Shelby County, IL Power Outage Report
In 2020, customers in Shelby County, IL went without power for an average of 8.7 hours, a total of 50K customer-hours (Illinois average 5.9 hours). That ranks 16th worst of 102 Illinois counties and 889th 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 Shelby 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 | July 21, 2020 22:45 | July 22, 2020 04:30 | 5h 45m | 3,135 | 12K |
| 2 | April 8, 2020 23:15 | April 9, 2020 21:15 | 22h | 2,687 | 5,951 |
| 3 | March 29, 2020 00:15 | March 29, 2020 03:30 | 3h 15m | 1,290 | 554 |
| 4 | May 27, 2020 11:45 | May 27, 2020 14:00 | 2h 15m | 1,152 | 866 |
| 5 | May 4, 2020 14:00 | May 4, 2020 15:30 | 1h 30m | 1,149 | 1,203 |
| 6 | April 12, 2020 01:30 | April 12, 2020 17:45 | 16h 15m | 951 | 1,800 |
| 7 | July 15, 2020 22:45 | July 16, 2020 14:45 | 16h | 833 | 2,940 |
| 8 | May 13, 2020 01:45 | May 13, 2020 03:45 | 2h | 718 | 1,261 |
| 9 | May 10, 2020 14:45 | May 10, 2020 20:00 | 5h 15m | 497 | 1,289 |
| 10 | July 30, 2020 16:15 | July 30, 2020 18:00 | 1h 45m | 496 | 307 |
Outage episodes by size in 2020: 33 reached 100+ customers, 5 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 Shelby 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 |
| Southwestern Electric Coop Inc - (IL) | 2020 | 3.4 hrs | 1.51 | 3.1 hrs | 1.47 |
| Ameren | - | - | - | - | - |
| Norris Electric Coop | - | - | - | - | - |
| Shelby Electric Coop, Inc | - | - | - | - | - |
| Coles-Moultrie Electric Coop | - | - | - | - | - |
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 ÷ 5,708 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. Shelby County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Shelby 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/shelby-county