County annual report · FIPS 19017
2018 Bremer County, IA Power Outage Report
In 2018, customers in Bremer County, IA went without power for an average of 0.4 hours, a total of 6,925 customer-hours (Iowa average 2.2 hours). That ranks 97th worst of 99 Iowa counties and 2532nd of 2,798 nationally.
Compared with IA, the US and 2017
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Bremer County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 5, 2018 22:15 | August 6, 2018 13:00 | 14h 45m | 681 | 744 |
| 2 | September 6, 2018 14:00 | September 7, 2018 12:15 | 22h 15m | 670 | 477 |
| 3 | March 24, 2018 06:15 | March 24, 2018 17:00 | 10h 45m | 542 | 1,668 |
| 4 | August 2, 2018 01:15 | August 2, 2018 02:00 | 45m | 160 | 120 |
| 5 | March 5, 2018 18:45 | March 5, 2018 20:30 | 1h 45m | 128 | 120 |
| 6 | March 5, 2018 21:30 | March 6, 2018 01:00 | 3h 30m | 98 | 35 |
| 7 | August 3, 2018 12:30 | August 3, 2018 13:30 | 1h | 92 | 92 |
| 8 | May 7, 2018 10:15 | May 7, 2018 11:00 | 45m | 91 | 46 |
| 9 | August 25, 2018 15:15 | August 27, 2018 17:30 | 2d 2h | 70 | 269 |
| 10 | March 6, 2018 03:15 | March 6, 2018 04:45 | 1h 30m | 54 | 56 |
Outage episodes by size in 2018: 5 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 Bremer County reported on EIA Form 861 for 2018, 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 | 2018 | 1.9 hrs | 1.18 | 75 min | 0.96 |
| Allamakee-Clayton El Coop, Inc | 2018 | 1.5 hrs | 0.73 | 1.5 hrs | 0.73 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| East-Central Iowa Rural Elec Coop | - | - | - | - | - |
| Waverly Municipal Elec Utility | - | - | - | - | - |
| Butler County Rural Elec Coop - (IA) | - | - | - | - | - |
| City of Denver - (IA) | - | - | - | - | - |
| City of Readlyn - (IA) | - | - | - | - | - |
| City of Sumner - (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 89% of Iowa's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 16,028 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. Bremer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Bremer County, IA annual power outage report, 2018, 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/2018/iowa/bremer-county