County annual report · FIPS 17183
2023 Vermilion County, IL Power Outage Report
In 2023, customers in Vermilion County, IL went without power for an average of 33.0 hours, a total of 1.5M customer-hours (Illinois average 4.0 hours). That ranks 4th worst of 102 Illinois counties and 203rd 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 Vermilion 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 | June 29, 2023 18:15 | July 7, 2023 18:00 | 7d 23h | 32,688 | 1.4M |
| 2 | March 3, 2023 15:00 | March 5, 2023 03:15 | 1d 12h | 2,377 | 16K |
| 3 | July 7, 2023 20:45 | July 9, 2023 20:00 | 1d 23h | 2,294 | 4,415 |
| 4 | December 5, 2023 13:15 | December 5, 2023 23:15 | 10h | 1,796 | 1,926 |
| 5 | April 1, 2023 00:45 | April 3, 2023 02:15 | 2d 1h | 1,448 | 15K |
| 6 | July 31, 2023 04:45 | July 31, 2023 21:00 | 16h 15m | 1,367 | 2,665 |
| 7 | April 14, 2023 16:30 | April 15, 2023 04:15 | 11h 45m | 1,254 | 1,424 |
| 8 | June 13, 2023 14:00 | June 14, 2023 00:45 | 10h 45m | 1,094 | 1,458 |
| 9 | February 9, 2023 12:30 | February 10, 2023 03:00 | 14h 30m | 1,087 | 2,515 |
| 10 | July 29, 2023 06:15 | July 29, 2023 17:15 | 11h | 1,009 | 5,164 |
Outage episodes by size in 2023: 48 reached 100+ customers, 10 reached 1,000+ customers, 1 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 Vermilion 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 |
| Eastern Illinois Elec Coop | 2023 | 10.2 hrs | 2.06 | 1.8 hrs | 1.12 |
| Ameren | - | - | - | - | - |
| Enerstar Power Corp | - | - | - | - | - |
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 ÷ 46,373 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. Vermilion County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Vermilion 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/vermilion-county