County annual report · FIPS 19007
2021 Appanoose County, IA Power Outage Report
In 2021, customers in Appanoose County, IA went without power for an average of 10.4 hours, a total of 68K customer-hours (Iowa average 2.7 hours). That ranks 10th worst of 99 Iowa counties and 759th 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 Appanoose 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 15, 2021 23:15 | December 17, 2021 06:30 | 1d 7h | 5,385 | 41K |
| 2 | May 24, 2021 08:15 | May 24, 2021 19:15 | 11h | 1,737 | 5,075 |
| 3 | October 12, 2021 14:45 | October 12, 2021 22:45 | 8h | 565 | 816 |
| 4 | November 13, 2021 01:45 | November 13, 2021 02:30 | 45m | 565 | 424 |
| 5 | October 18, 2021 05:30 | October 18, 2021 08:45 | 3h 15m | 548 | 1,644 |
| 6 | October 20, 2021 14:30 | October 20, 2021 16:15 | 1h 45m | 506 | 138 |
| 7 | December 9, 2021 16:30 | December 9, 2021 20:30 | 4h | 346 | 244 |
| 8 | October 4, 2021 21:30 | October 4, 2021 22:30 | 1h | 283 | 283 |
| 9 | March 15, 2021 04:45 | March 15, 2021 09:15 | 4h 30m | 267 | 1,066 |
| 10 | October 8, 2021 21:15 | October 8, 2021 22:15 | 1h | 265 | 179 |
Outage episodes by size in 2021: 27 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 Appanoose 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 |
|---|---|---|---|---|---|
| Chariton Valley Elec Coop, Inc | 2018 | 2.3 hrs | 1.23 | 2.3 hrs | 1.23 |
| Southern Iowa Elec Coop, Inc | 2018 | 1.9 hrs | 1.00 | 1.9 hrs | 1.00 |
| 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 ÷ 6,572 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. Appanoose County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Appanoose 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/appanoose-county