County annual report · FIPS 17187
2023 Warren County, IL Power Outage Report
In 2023, customers in Warren County, IL went without power for an average of 12.7 hours, a total of 105K customer-hours (Illinois average 4.0 hours). That ranks 26th worst of 102 Illinois counties and 674th of 2,977 nationally.
Compared with IL, the US and 2022
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Warren County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 4, 2023 00:45 | December 4, 2023 05:45 | 5h | 5,611 | 13K |
| 2 | December 4, 2023 14:00 | December 4, 2023 20:15 | 6h 15m | 4,980 | 16K |
| 3 | September 22, 2023 14:45 | September 22, 2023 18:00 | 3h 15m | 3,492 | 3,931 |
| 4 | December 3, 2023 13:45 | December 3, 2023 16:15 | 2h 30m | 3,222 | 6,735 |
| 5 | June 29, 2023 14:45 | July 5, 2023 00:15 | 5d 9h | 1,055 | 49K |
| 6 | May 17, 2023 20:45 | May 18, 2023 11:30 | 14h 45m | 640 | 205 |
| 7 | May 8, 2023 00:30 | May 9, 2023 06:45 | 1d 6h | 523 | 3,508 |
| 8 | March 31, 2023 23:15 | April 1, 2023 21:30 | 22h 15m | 370 | 1,931 |
| 9 | June 1, 2023 11:45 | June 1, 2023 18:15 | 6h 30m | 352 | 1,596 |
| 10 | October 2, 2023 12:45 | October 2, 2023 16:00 | 3h 15m | 348 | 406 |
Outage episodes by size in 2023: 15 reached 100+ customers, 5 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 2023, 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 | 2023 | 9.9 hrs | 1.33 | 1.9 hrs | 0.82 |
| 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 2023; 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, 2023, 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/2023/illinois/warren-county