County annual report · FIPS 19195
2021 Worth County, IA Power Outage Report
In 2021, customers in Worth County, IA went without power for an average of 19.0 hours, a total of 44K customer-hours (Iowa average 2.7 hours). That ranks 3rd worst of 99 Iowa counties and 456th 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 Worth 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 | December 16, 2021 01:00 | December 21, 2021 03:15 | 5d 2h | 3,183 | 36K |
| 2 | June 11, 2021 16:30 | June 11, 2021 18:15 | 1h 45m | 1,080 | 489 |
| 3 | November 15, 2021 16:45 | November 15, 2021 17:00 | 15m | 768 | 192 |
| 4 | May 23, 2021 22:45 | May 24, 2021 00:45 | 2h | 569 | 605 |
| 5 | November 14, 2021 11:15 | November 15, 2021 07:15 | 20h | 254 | 1,927 |
| 6 | December 27, 2021 12:30 | December 27, 2021 16:00 | 3h 30m | 116 | 287 |
| 7 | August 28, 2021 00:30 | August 29, 2021 00:45 | 1d | 95 | 218 |
| 8 | September 22, 2021 14:45 | September 22, 2021 22:00 | 7h 15m | 89 | 92 |
| 9 | June 17, 2021 06:30 | June 17, 2021 09:30 | 3h | 81 | 114 |
| 10 | July 13, 2021 19:45 | July 13, 2021 20:30 | 45m | 81 | 61 |
Outage episodes by size in 2021: 6 reached 100+ customers, 2 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 Worth 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 |
|---|---|---|---|---|---|
| Heartland Power Coop | 2021 | 3.2 hrs | 0.80 | 35 min | 0.39 |
| Freeborn Mower Electric Cooperative | 2021 | 2.6 hrs | 1.10 | 76 min | 0.73 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Prairie Energy Coop | - | - | - | - | - |
| Grafton Electric - (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 91% of Iowa's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,289 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. Worth County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Worth 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/worth-county