County annual report · FIPS 17167
2015 Sangamon County, IL Power Outage Report
In 2015, customers in Sangamon County, IL went without power for an average of 0.5 hours, a total of 65K customer-hours (Illinois average 2.3 hours). That ranks 90th worst of 100 Illinois counties and 2087th of 2,484 nationally.
Compared with IL, the US
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Sangamon County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 21, 2015 03:15 | June 22, 2015 18:00 | 1d 14h | 3,157 | 19K |
| 2 | November 26, 2015 19:00 | November 27, 2015 01:00 | 6h | 1,458 | 2,951 |
| 3 | May 7, 2015 19:00 | May 7, 2015 20:15 | 1h 15m | 1,159 | 291 |
| 4 | July 15, 2015 11:00 | July 18, 2015 13:45 | 3d 2h | 1,117 | 1,084 |
| 5 | June 15, 2015 00:15 | June 15, 2015 10:15 | 10h | 996 | 2,205 |
| 6 | June 14, 2015 01:00 | June 14, 2015 08:45 | 7h 45m | 913 | 4,283 |
| 7 | May 11, 2015 00:00 | May 11, 2015 10:30 | 10h 30m | 871 | 1,812 |
| 8 | June 15, 2015 22:15 | June 16, 2015 05:15 | 7h | 860 | 1,966 |
| 9 | September 4, 2015 12:00 | September 4, 2015 19:00 | 7h | 856 | 945 |
| 10 | November 21, 2015 16:45 | November 21, 2015 23:30 | 6h 45m | 748 | 453 |
Outage episodes by size in 2015: 41 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 Sangamon County reported on EIA Form 861 for 2015, 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 | 2015 | 5.9 hrs | 1.39 | 2.2 hrs | 1.04 |
| Rural Electric Conven Coop | 2015 | 90 min | 0.79 | 90 min | 0.79 |
| 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 2015; 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, 2015, 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/2015/illinois/sangamon-county