County annual report · FIPS 19071
2021 Fremont County, IA Power Outage Report
In 2021, customers in Fremont County, IA went without power for an average of 14.0 hours, a total of 60K customer-hours (Iowa average 2.7 hours). That ranks 6th worst of 99 Iowa counties and 602nd of 2,974 nationally.
Compared with IA, the US and 2020
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Fremont County, 2021
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 25, 2021 00:15 | June 25, 2021 19:00 | 18h 45m | 2,320 | 14K |
| 2 | March 4, 2021 01:30 | March 4, 2021 03:00 | 1h 30m | 2,311 | 2,910 |
| 3 | December 15, 2021 22:30 | December 19, 2021 03:45 | 3d 5h | 1,560 | 38K |
| 4 | July 23, 2021 18:30 | July 23, 2021 20:45 | 2h 15m | 216 | 270 |
| 5 | April 12, 2021 04:00 | April 12, 2021 13:15 | 9h 15m | 179 | 777 |
| 6 | March 23, 2021 11:45 | March 23, 2021 15:15 | 3h 30m | 146 | 428 |
| 7 | October 27, 2021 17:30 | October 27, 2021 22:15 | 4h 45m | 104 | 127 |
| 8 | October 20, 2021 17:45 | October 20, 2021 20:15 | 2h 30m | 90 | 184 |
| 9 | October 13, 2021 16:00 | October 13, 2021 21:00 | 5h | 89 | 167 |
| 10 | November 22, 2021 14:45 | November 22, 2021 21:45 | 7h | 89 | 190 |
Outage episodes by size in 2021: 7 reached 100+ customers, 3 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 Fremont County reported on EIA Form 861 for 2021, 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 | 2021 | 1.9 hrs | 1.04 | 75 min | 0.74 |
| Southwest Iowa Rural Elec Coop | 2018 | 2.4 hrs | 1.69 | 1.6 hrs | 1.21 |
| Atchison-Holt Electric 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 91% of Iowa's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,285 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. Fremont County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Fremont County, IA annual power outage report, 2021, 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/2021/iowa/fremont-county