County annual report · FIPS 17167
2017 Sangamon County, IL Power Outage Report
In 2017, customers in Sangamon County, IL went without power for an average of 0.4 hours, a total of 49K customer-hours (Illinois average 1.4 hours). That ranks 94th worst of 102 Illinois counties and 2378th 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 Sangamon 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 | March 30, 2017 14:00 | March 30, 2017 17:00 | 3h | 4,060 | 1,751 |
| 2 | February 4, 2017 17:30 | February 5, 2017 05:45 | 12h 15m | 2,865 | 25K |
| 3 | March 23, 2017 23:30 | March 24, 2017 14:15 | 14h 45m | 2,253 | 9,206 |
| 4 | April 29, 2017 21:30 | April 30, 2017 17:30 | 20h | 1,339 | 4,295 |
| 5 | April 10, 2017 20:00 | April 10, 2017 23:00 | 3h | 1,116 | 567 |
| 6 | April 10, 2017 11:45 | April 10, 2017 12:30 | 45m | 1,113 | 835 |
| 7 | March 7, 2017 07:30 | March 7, 2017 17:30 | 10h | 878 | 688 |
| 8 | March 27, 2017 14:00 | March 27, 2017 16:45 | 2h 45m | 875 | 876 |
| 9 | January 10, 2017 21:15 | January 11, 2017 03:15 | 6h | 377 | 779 |
| 10 | December 19, 2017 15:45 | December 19, 2017 19:15 | 3h 30m | 250 | 247 |
Outage episodes by size in 2017: 16 reached 100+ customers, 6 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 Sangamon 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 |
| Rural Electric Conven Coop | 2017 | 2.8 hrs | 1.74 | 1.6 hrs | 1.08 |
| Ameren | - | - | - | - | - |
| Shelby Electric Coop, Inc | - | - | - | - | - |
| Menard Electric Coop | - | - | - | - | - |
| City of Springfield - (IL) | - | - | - | - | - |
| Village of Chatham - (IL) | - | - | - | - | - |
| Village of Riverton - (IL) | - | - | - | - | - |
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 ÷ 138,475 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. Sangamon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sangamon 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/sangamon-county