County annual report · FIPS 19135
2021 Monroe County, IA Power Outage Report
In 2021, customers in Monroe County, IA went without power for an average of 7.7 hours, a total of 31K customer-hours (Iowa average 2.7 hours). That ranks 19th worst of 99 Iowa counties and 968th 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 Monroe 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 01:30 | December 16, 2021 18:00 | 16h 30m | 1,014 | 6,959 |
| 2 | April 20, 2021 15:30 | April 20, 2021 22:00 | 6h 30m | 342 | 627 |
| 3 | May 19, 2021 19:00 | May 19, 2021 19:45 | 45m | 341 | 256 |
| 4 | July 15, 2021 06:00 | July 15, 2021 09:45 | 3h 45m | 331 | 877 |
| 5 | July 3, 2021 18:00 | July 4, 2021 05:00 | 11h | 322 | 583 |
| 6 | March 9, 2021 20:15 | March 9, 2021 22:30 | 2h 15m | 319 | 718 |
| 7 | July 3, 2021 16:15 | July 3, 2021 17:00 | 45m | 312 | 234 |
| 8 | June 24, 2021 23:30 | June 25, 2021 21:30 | 22h | 278 | 2,790 |
| 9 | August 11, 2021 14:30 | August 11, 2021 22:00 | 7h 30m | 219 | 1,201 |
| 10 | July 13, 2021 14:30 | July 13, 2021 16:15 | 1h 45m | 216 | 57 |
Outage episodes by size in 2021: 20 reached 100+ customers, 1 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 Monroe 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 |
| Chariton Valley Elec Coop, Inc | 2018 | 2.3 hrs | 1.23 | 2.3 hrs | 1.23 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
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 ÷ 4,056 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. Monroe County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Monroe 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/monroe-county