County annual report · FIPS 17187
2015 Warren County, IL Power Outage Report
In 2015, customers in Warren County, IL went without power for an average of 15.7 hours, a total of 129K customer-hours (Illinois average 2.3 hours). That ranks 5th worst of 100 Illinois counties and 158th 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 Warren 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 | October 22, 2015 23:15 | October 23, 2015 02:30 | 3h 15m | 6,801 | 12K |
| 2 | July 17, 2015 00:15 | July 18, 2015 04:30 | 1d 4h | 3,892 | 19K |
| 3 | December 28, 2015 13:15 | December 31, 2015 00:15 | 2d 11h | 3,590 | 52K |
| 4 | November 21, 2015 05:00 | November 22, 2015 13:00 | 1d 8h | 1,208 | 13K |
| 5 | June 7, 2015 20:30 | June 8, 2015 13:30 | 17h | 932 | 6,244 |
| 6 | November 12, 2015 00:30 | November 13, 2015 19:30 | 1d 19h | 826 | 12K |
| 7 | June 11, 2015 03:15 | June 12, 2015 20:00 | 1d 16h | 710 | 3,103 |
| 8 | April 30, 2015 06:15 | April 30, 2015 09:30 | 3h 15m | 692 | 2,249 |
| 9 | January 13, 2015 12:30 | January 13, 2015 17:00 | 4h 30m | 676 | 1,712 |
| 10 | April 29, 2015 19:00 | April 29, 2015 19:15 | 15m | 663 | 166 |
Outage episodes by size in 2015: 18 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 Warren 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 |
| Ameren | - | - | - | - | - |
| McDonough Power Coop | - | - | - | - | - |
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 ÷ 8,244 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. Warren County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Warren 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/warren-county