County annual report · FIPS 17181
2019 Union County, IL Power Outage Report
In 2019, customers in Union County, IL went without power for an average of 1.5 hours, a total of 15K customer-hours (Illinois average 1.8 hours). That ranks 80th worst of 102 Illinois counties and 2288th of 2,945 nationally.
Compared with IL, the US and 2018
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Union County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 17, 2019 21:30 | July 18, 2019 11:15 | 13h 45m | 4,677 | 4,160 |
| 2 | June 21, 2019 21:00 | June 22, 2019 23:15 | 1d 2h | 864 | 5,007 |
| 3 | November 8, 2019 16:15 | November 8, 2019 19:45 | 3h 30m | 511 | 136 |
| 4 | March 14, 2019 17:30 | March 15, 2019 02:30 | 9h | 490 | 486 |
| 5 | July 4, 2019 03:00 | July 4, 2019 04:30 | 1h 30m | 457 | 536 |
| 6 | March 21, 2019 08:15 | March 21, 2019 10:00 | 1h 45m | 352 | 616 |
| 7 | October 21, 2019 16:00 | October 21, 2019 18:30 | 2h 30m | 286 | 82 |
| 8 | June 28, 2019 00:15 | June 28, 2019 03:30 | 3h 15m | 275 | 568 |
| 9 | June 16, 2019 22:15 | June 17, 2019 10:00 | 11h 45m | 137 | 469 |
| 10 | February 16, 2019 21:30 | February 17, 2019 06:00 | 8h 30m | 131 | 446 |
Outage episodes by size in 2019: 11 reached 100+ customers, 1 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 Union County reported on EIA Form 861 for 2019, 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 | 2018 | 3.5 hrs | 1.06 | 1.8 hrs | 0.90 |
| Ameren | - | - | - | - | - |
| Egyptian Electric Coop Assn | - | - | - | - | - |
| Southern Illinois Elec 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 99% of Illinois's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 10,277 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. Union County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Union County, IL annual power outage report, 2019, 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/2019/illinois/union-county