County annual report · FIPS 19023
2020 Butler County, IA Power Outage Report
In 2020, customers in Butler County, IA went without power for an average of 2.4 hours, a total of 12K customer-hours (Iowa average 27.4 hours). That ranks 50th worst of 99 Iowa counties and 2092nd of 3,019 nationally.
Compared with IA, the US and 2019
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Butler County, 2020
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 22, 2020 01:45 | June 22, 2020 06:15 | 4h 30m | 524 | 1,260 |
| 2 | May 13, 2020 16:15 | May 13, 2020 19:15 | 3h | 251 | 600 |
| 3 | October 9, 2020 16:00 | October 30, 2020 17:00 | 21d 1h | 208 | 1,962 |
| 4 | March 12, 2020 15:15 | March 12, 2020 17:00 | 1h 45m | 205 | 309 |
| 5 | April 4, 2020 23:15 | April 5, 2020 00:30 | 1h 15m | 205 | 256 |
| 6 | September 6, 2020 10:30 | September 6, 2020 14:00 | 3h 30m | 129 | 98 |
| 7 | September 16, 2020 20:30 | September 17, 2020 19:45 | 23h 15m | 72 | 1,620 |
| 8 | May 5, 2020 09:45 | May 6, 2020 12:30 | 1d 2h | 60 | 194 |
| 9 | June 7, 2020 01:45 | June 7, 2020 08:15 | 6h 30m | 56 | 203 |
| 10 | December 21, 2020 21:30 | December 21, 2020 23:30 | 2h | 45 | 56 |
Outage episodes by size in 2020: 6 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 2020, 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 | 2020 | 18.3 hrs | 1.43 | 82 min | 0.79 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Butler County Rural Elec Coop - (IA) | - | - | - | - | - |
| 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 91% of Iowa's customers in 2020; 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, 2020, 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/2020/iowa/butler-county