County annual report · FIPS 17121
2016 Marion County, IL Power Outage Report
In 2016, customers in Marion County, IL went without power for an average of 6.2 hours, a total of 95K customer-hours (Illinois average 1.5 hours). That ranks 8th worst of 100 Illinois counties and 546th of 2,391 nationally.
Compared with IL, the US and 2015
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Marion County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 24, 2016 09:15 | February 25, 2016 20:15 | 1d 11h | 4,582 | 11K |
| 2 | July 13, 2016 22:00 | July 22, 2016 14:45 | 8d 16h | 3,287 | 59K |
| 3 | January 27, 2016 01:30 | January 27, 2016 08:30 | 7h | 1,326 | 3,600 |
| 4 | May 7, 2016 23:00 | May 9, 2016 09:15 | 1d 10h | 1,129 | 7,991 |
| 5 | August 15, 2016 17:00 | August 15, 2016 23:45 | 6h 45m | 805 | 1,213 |
| 6 | October 26, 2016 06:30 | October 26, 2016 07:00 | 30m | 702 | 351 |
| 7 | April 26, 2016 21:30 | April 27, 2016 03:45 | 6h 15m | 491 | 1,490 |
| 8 | January 6, 2016 15:00 | January 6, 2016 18:00 | 3h | 472 | 643 |
| 9 | September 14, 2016 01:30 | September 14, 2016 09:15 | 7h 45m | 375 | 708 |
| 10 | August 9, 2016 06:00 | August 9, 2016 09:00 | 3h | 332 | 403 |
Outage episodes by size in 2016: 19 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 Marion County reported on EIA Form 861 for 2016, 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 | 2016 | 4.0 hrs | 1.36 | 2.1 hrs | 1.04 |
| Southwestern Electric Coop Inc - (IL) | 2016 | 6.4 hrs | 1.72 | 84 min | 0.86 |
| Tri-County Electric Coop, Inc (IL) | 2016 | 5.8 hrs | 2.39 | 87 min | 1.00 |
| Ameren | - | - | - | - | - |
| Wayne-White Counties Elec Coop | - | - | - | - | - |
| Clay Electric Coop Inc | - | - | - | - | - |
| Clinton County Elec Coop, Inc | - | - | - | - | - |
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 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 15,234 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. Marion County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Marion County, IL annual power outage report, 2016, 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/2016/illinois/marion-county