County annual report · FIPS 19023
2023 Butler County, IA Power Outage Report
In 2023, customers in Butler County, IA went without power for an average of 5.3 hours, a total of 25K customer-hours (Iowa average 2.0 hours). That ranks 11th worst of 99 Iowa counties and 1413th 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 Butler 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 11, 2023 13:45 | June 26, 2023 17:45 | 15d 4h | 832 | 2,239 |
| 2 | July 23, 2023 07:45 | July 23, 2023 10:15 | 2h 30m | 822 | 1,969 |
| 3 | August 12, 2023 02:45 | August 12, 2023 15:45 | 13h | 758 | 2,801 |
| 4 | September 2, 2023 12:30 | September 6, 2023 12:00 | 3d 23h | 666 | 828 |
| 5 | October 23, 2023 23:00 | October 24, 2023 00:00 | 1h | 655 | 492 |
| 6 | November 21, 2023 03:15 | November 21, 2023 18:00 | 14h 45m | 655 | 178 |
| 7 | April 14, 2023 13:30 | April 15, 2023 00:15 | 10h 45m | 647 | 2,440 |
| 8 | May 10, 2023 05:15 | May 10, 2023 05:45 | 30m | 612 | 153 |
| 9 | January 27, 2023 16:30 | January 27, 2023 17:45 | 1h 15m | 364 | 219 |
| 10 | September 15, 2023 09:30 | September 15, 2023 11:15 | 1h 45m | 363 | 635 |
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 Butler 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2023 | 2.8 hrs | 1.13 | 78 min | 0.83 |
| Butler County Rural Elec Coop - (IA) | 2023 | 71 min | 0.68 | 71 min | 0.68 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Franklin Rural Electric Coop - (IA) | - | - | - | - | - |
| Grundy County Rural Elec Coop | - | - | - | - | - |
| Cedar Falls Utilities | - | - | - | - | - |
| City of Aplington | - | - | - | - | - |
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 ÷ 4,791 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. Butler County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Butler 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/butler-county