County annual report · FIPS 19113
2021 Linn County, IA Power Outage Report
In 2021, customers in Linn County, IA went without power for an average of 1.1 hours, a total of 126K customer-hours (Iowa average 2.7 hours). That ranks 85th worst of 99 Iowa counties and 2636th 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 Linn 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 01:15 | December 17, 2021 03:30 | 1d 2h | 6,359 | 16K |
| 2 | January 30, 2021 19:45 | January 31, 2021 03:15 | 7h 30m | 5,441 | 5,840 |
| 3 | June 9, 2021 13:00 | June 9, 2021 22:30 | 9h 30m | 3,286 | 3,116 |
| 4 | August 10, 2021 11:45 | August 11, 2021 20:15 | 1d 8h | 2,881 | 3,302 |
| 5 | July 21, 2021 13:15 | July 24, 2021 19:30 | 3d 6h | 2,413 | 4,358 |
| 6 | May 17, 2021 14:00 | May 17, 2021 19:45 | 5h 45m | 2,274 | 1,817 |
| 7 | October 20, 2021 20:45 | October 20, 2021 22:30 | 1h 45m | 2,258 | 566 |
| 8 | September 16, 2021 14:15 | October 5, 2021 18:30 | 19d 4h | 2,241 | 6,828 |
| 9 | May 27, 2021 13:45 | May 27, 2021 14:45 | 1h | 2,115 | 1,058 |
| 10 | April 29, 2021 14:15 | April 30, 2021 20:15 | 1d 6h | 1,998 | 4,605 |
Outage episodes by size in 2021: 96 reached 100+ customers, 24 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 Linn 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 |
| East-Central Iowa Rural Elec Coop | 2021 | 1.7 hrs | 1.30 | 88 min | 1.10 |
| 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 Coggon - (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 ÷ 118,247 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. Linn County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Linn 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/linn-county