County annual report · FIPS 17121
2017 Marion County, IL Power Outage Report
In 2017, customers in Marion County, IL went without power for an average of 0.6 hours, a total of 9,397 customer-hours (Illinois average 1.4 hours). That ranks 80th worst of 102 Illinois counties and 2231st 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 Marion 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 29, 2017 23:00 | April 30, 2017 17:30 | 18h 30m | 964 | 4,041 |
| 2 | November 22, 2017 20:15 | November 22, 2017 22:15 | 2h | 523 | 525 |
| 3 | March 1, 2017 21:00 | March 2, 2017 01:30 | 4h 30m | 293 | 536 |
| 4 | April 7, 2017 15:45 | April 7, 2017 16:30 | 45m | 233 | 117 |
| 5 | March 15, 2017 14:00 | March 15, 2017 18:00 | 4h | 225 | 279 |
| 6 | April 26, 2017 20:30 | April 27, 2017 02:45 | 6h 15m | 200 | 890 |
| 7 | January 20, 2017 14:00 | January 20, 2017 16:30 | 2h 30m | 79 | 82 |
| 8 | April 27, 2017 05:15 | April 27, 2017 07:00 | 1h 45m | 77 | 133 |
| 9 | March 22, 2017 14:00 | March 22, 2017 18:00 | 4h | 68 | 89 |
| 10 | October 22, 2017 16:30 | October 22, 2017 21:00 | 4h 30m | 61 | 152 |
Outage episodes by size in 2017: 6 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 Marion 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 |
| Tri-County Electric Coop, Inc (IL) | 2017 | 4.1 hrs | 1.90 | 73 min | 0.85 |
| 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 2017; 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, 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/marion-county