County annual report · FIPS 17003
2020 Alexander County, IL Power Outage Report
In 2020, customers in Alexander County, IL went without power for an average of 1.8 hours, a total of 4,975 customer-hours (Illinois average 5.9 hours). That ranks 80th worst of 102 Illinois counties and 2358th 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 Alexander 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 | October 21, 2020 00:00 | October 21, 2020 08:15 | 8h 15m | 549 | 1,144 |
| 2 | October 7, 2020 12:15 | October 7, 2020 14:30 | 2h 15m | 547 | 174 |
| 3 | May 8, 2020 21:15 | May 9, 2020 02:15 | 5h | 436 | 1,671 |
| 4 | December 24, 2020 10:15 | December 24, 2020 11:00 | 45m | 243 | 182 |
| 5 | December 25, 2020 04:45 | December 25, 2020 06:15 | 1h 30m | 243 | 327 |
| 6 | October 10, 2020 19:30 | October 10, 2020 21:45 | 2h 15m | 242 | 348 |
| 7 | October 29, 2020 11:30 | October 29, 2020 12:15 | 45m | 242 | 61 |
| 8 | September 17, 2020 20:15 | September 18, 2020 02:15 | 6h | 152 | 812 |
| 9 | March 14, 2020 10:15 | March 14, 2020 11:00 | 45m | 10 | 8 |
| 10 | April 15, 2020 18:15 | April 15, 2020 19:15 | 1h | 10 | 8 |
Outage episodes by size in 2020: 8 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 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 |
| 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 94% of Illinois's customers in 2020; 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, 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/alexander-county