County annual report · FIPS 17003
2015 Alexander County, IL Power Outage Report
In 2015, customers in Alexander County, IL went without power for an average of 4.9 hours, a total of 14K customer-hours (Illinois average 2.3 hours). That ranks 20th worst of 100 Illinois counties and 578th 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 Alexander 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 | July 9, 2015 03:00 | July 10, 2015 00:15 | 21h 15m | 666 | 7,522 |
| 2 | April 17, 2015 09:45 | April 17, 2015 10:00 | 15m | 650 | 163 |
| 3 | April 16, 2015 12:15 | April 16, 2015 12:30 | 15m | 452 | 113 |
| 4 | May 25, 2015 02:00 | May 25, 2015 17:15 | 15h 15m | 442 | 2,805 |
| 5 | July 11, 2015 09:00 | July 11, 2015 09:30 | 30m | 419 | 210 |
| 6 | July 21, 2015 09:00 | July 21, 2015 09:30 | 30m | 412 | 157 |
| 7 | November 18, 2015 01:45 | November 18, 2015 04:00 | 2h 15m | 217 | 255 |
| 8 | November 27, 2015 06:15 | November 27, 2015 15:00 | 8h 45m | 217 | 1,549 |
| 9 | December 30, 2015 21:00 | December 31, 2015 00:15 | 3h 15m | 217 | 598 |
| 10 | April 22, 2015 03:15 | April 22, 2015 05:00 | 1h 45m | 33 | 58 |
Outage episodes by size in 2015: 9 reached 100+ customers, 0 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 Alexander 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 |
| Southern Illinois Elec Coop | - | - | - | - | - |
| Cairo Public Utility Company | - | - | - | - | - |
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 ÷ 2,842 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. Alexander County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Alexander 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/alexander-county