County annual report · FIPS 19031
2021 Cedar County, IA Power Outage Report
In 2021, customers in Cedar County, IA went without power for an average of 1.9 hours, a total of 17K customer-hours (Iowa average 2.7 hours). That ranks 64th worst of 99 Iowa counties and 2277th 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 Cedar 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 02:15 | December 17, 2021 01:00 | 22h 45m | 1,512 | 4,805 |
| 2 | October 24, 2021 20:30 | October 25, 2021 05:45 | 9h 15m | 1,231 | 364 |
| 3 | July 16, 2021 13:45 | July 16, 2021 14:15 | 30m | 861 | 266 |
| 4 | January 30, 2021 21:15 | January 31, 2021 05:00 | 7h 45m | 804 | 1,439 |
| 5 | August 24, 2021 20:45 | August 25, 2021 04:15 | 7h 30m | 780 | 464 |
| 6 | July 25, 2021 01:15 | July 25, 2021 02:45 | 1h 30m | 775 | 1,163 |
| 7 | August 3, 2021 19:00 | August 4, 2021 01:00 | 6h | 513 | 226 |
| 8 | September 16, 2021 07:45 | September 16, 2021 10:15 | 2h 30m | 479 | 1,198 |
| 9 | July 19, 2021 14:30 | July 19, 2021 16:15 | 1h 45m | 345 | 109 |
| 10 | December 27, 2021 02:45 | December 27, 2021 04:15 | 1h 30m | 284 | 419 |
Outage episodes by size in 2021: 20 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 Cedar 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 |
|---|---|---|---|---|---|
| Eastern Iowa Light & Power Coop | 2021 | 2.1 hrs | 1.31 | 1.8 hrs | 1.22 |
| Maquoketa Valley Rrl Elec Coop | 2021 | 88 min | 0.93 | 56 min | 0.71 |
| Linn County REC | 2021 | 2.3 hrs | 1.59 | 2.3 hrs | 1.59 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| City of Durant - (IA) | - | - | - | - | - |
| City of Wilton - (IA) | - | - | - | - | - |
| City of Tipton - (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 ÷ 8,986 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. Cedar County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cedar 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/cedar-county