County annual report · FIPS 19175
2023 Union County, IA Power Outage Report
In 2023, customers in Union County, IA went without power for an average of 1.5 hours, a total of 9,912 customer-hours (Iowa average 2.0 hours). That ranks 54th worst of 99 Iowa counties and 2498th of 2,977 nationally.
Compared with IA, the US and 2022
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Union 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 | July 12, 2023 12:45 | July 12, 2023 17:45 | 5h | 726 | 1,240 |
| 2 | November 21, 2023 07:15 | November 21, 2023 09:00 | 1h 45m | 361 | 542 |
| 3 | June 27, 2023 07:30 | June 27, 2023 09:00 | 1h 30m | 319 | 324 |
| 4 | September 13, 2023 14:00 | September 13, 2023 22:15 | 8h 15m | 223 | 946 |
| 5 | September 14, 2023 08:00 | September 14, 2023 11:45 | 3h 45m | 221 | 829 |
| 6 | August 8, 2023 15:15 | August 8, 2023 17:15 | 2h | 174 | 302 |
| 7 | December 21, 2023 13:00 | December 21, 2023 14:15 | 1h 15m | 169 | 211 |
| 8 | November 1, 2023 14:15 | November 1, 2023 15:00 | 45m | 159 | 92 |
| 9 | December 14, 2023 16:15 | December 14, 2023 17:15 | 1h | 158 | 158 |
| 10 | June 1, 2023 16:00 | June 1, 2023 16:30 | 30m | 140 | 70 |
Outage episodes by size in 2023: 17 reached 100+ customers, 0 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 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 |
|---|---|---|---|---|---|
| Southwest Iowa Rural Elec Coop | 2018 | 2.4 hrs | 1.69 | 1.6 hrs | 1.21 |
| Farmers Electric Coop, Inc - (IA) | 2018 | 5.9 hrs | 1.44 | 2.1 hrs | 1.26 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Clarke Electric Coop Inc - (IA) | - | - | - | - | - |
| City of Afton- (IA) | - | - | - | - | - |
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 Iowa's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 6,645 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, IA 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/iowa/union-county