County annual report · FIPS 17119
2017 Madison County, IL Power Outage Report
In 2017, customers in Madison County, IL went without power for an average of 0.7 hours, a total of 70K customer-hours (Illinois average 1.4 hours). That ranks 77th worst of 102 Illinois counties and 2215th of 2,786 nationally.
Compared with IL, the US and 2016
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Madison County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 12, 2017 03:00 | April 12, 2017 07:30 | 4h 30m | 2,525 | 2,148 |
| 2 | March 7, 2017 04:15 | March 9, 2017 18:00 | 2d 13h | 2,111 | 19K |
| 3 | November 25, 2017 14:30 | November 25, 2017 19:00 | 4h 30m | 1,167 | 2,574 |
| 4 | May 1, 2017 12:30 | May 10, 2017 02:15 | 8d 13h | 1,153 | 14K |
| 5 | April 29, 2017 13:15 | May 1, 2017 02:45 | 1d 13h | 1,085 | 4,267 |
| 6 | October 26, 2017 21:00 | October 27, 2017 11:30 | 14h 30m | 1,025 | 790 |
| 7 | April 3, 2017 18:30 | April 4, 2017 03:00 | 8h 30m | 1,006 | 557 |
| 8 | April 6, 2017 22:15 | April 7, 2017 04:15 | 6h | 885 | 877 |
| 9 | March 15, 2017 02:30 | March 15, 2017 03:45 | 1h 15m | 711 | 533 |
| 10 | January 24, 2017 13:45 | January 24, 2017 19:30 | 5h 45m | 552 | 1,224 |
Outage episodes by size in 2017: 31 reached 100+ customers, 7 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 Madison County reported on EIA Form 861 for 2017, 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 | 2017 | 3.2 hrs | 1.12 | 2.0 hrs | 0.90 |
| Southwestern Electric Coop Inc - (IL) | 2017 | 4.6 hrs | 1.54 | 4.6 hrs | 1.54 |
| Ameren | - | - | - | - | - |
| M J M Electric Cooperative Inc | - | - | - | - | - |
| Clinton County Elec Coop, Inc | - | - | - | - | - |
| City of Highland | - | - | - | - | - |
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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 107,855 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. Madison County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Madison County, IL annual power outage report, 2017, 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/2017/illinois/madison-county