County annual report · FIPS 17173
2015 Shelby County, IL Power Outage Report
In 2015, customers in Shelby County, IL went without power for an average of 2.0 hours, a total of 11K customer-hours (Illinois average 2.3 hours). That ranks 49th worst of 100 Illinois counties and 1241st of 2,484 nationally.
Compared with IL, the US
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Shelby County, 2015
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 28, 2015 17:45 | May 28, 2015 19:30 | 1h 45m | 1,747 | 438 |
| 2 | September 11, 2015 13:15 | September 11, 2015 14:30 | 1h 15m | 1,320 | 1,325 |
| 3 | October 29, 2015 02:15 | October 29, 2015 04:15 | 2h | 1,320 | 1,655 |
| 4 | September 21, 2015 15:00 | September 21, 2015 16:30 | 1h 30m | 1,059 | 1,329 |
| 5 | May 2, 2015 03:45 | May 2, 2015 05:00 | 1h 15m | 978 | 784 |
| 6 | May 3, 2015 02:00 | May 3, 2015 04:00 | 2h | 410 | 720 |
| 7 | July 20, 2015 21:30 | July 20, 2015 22:15 | 45m | 410 | 205 |
| 8 | December 11, 2015 11:15 | December 11, 2015 13:00 | 1h 45m | 410 | 687 |
| 9 | June 29, 2015 04:00 | June 29, 2015 09:00 | 5h | 404 | 1,217 |
| 10 | May 7, 2015 15:45 | May 7, 2015 17:00 | 1h 15m | 377 | 378 |
Outage episodes by size in 2015: 16 reached 100+ customers, 4 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 2015, 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 | 2015 | 5.9 hrs | 1.39 | 2.2 hrs | 1.04 |
| Southwestern Electric Coop Inc - (IL) | 2015 | 2.7 hrs | 1.63 | 2.4 hrs | 1.50 |
| 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 n/a of Illinois's customers in 2015; 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, 2015, 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/2015/illinois/shelby-county