County annual report · FIPS 19099
2021 Jasper County, IA Power Outage Report
In 2021, customers in Jasper County, IA went without power for an average of 5.2 hours, a total of 81K customer-hours (Iowa average 2.7 hours). That ranks 32nd worst of 99 Iowa counties and 1302nd 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 Jasper 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 00:45 | December 18, 2021 18:45 | 2d 18h | 6,920 | 48K |
| 2 | July 15, 2021 02:00 | July 15, 2021 12:30 | 10h 30m | 2,317 | 6,985 |
| 3 | October 19, 2021 23:00 | October 20, 2021 00:15 | 1h 15m | 2,183 | 2,184 |
| 4 | May 1, 2021 20:15 | May 2, 2021 01:45 | 5h 30m | 1,488 | 937 |
| 5 | November 1, 2021 13:45 | November 2, 2021 00:30 | 10h 45m | 1,103 | 1,615 |
| 6 | November 11, 2021 01:15 | November 11, 2021 10:30 | 9h 15m | 967 | 2,608 |
| 7 | April 25, 2021 21:45 | April 26, 2021 00:15 | 2h 30m | 900 | 1,671 |
| 8 | December 6, 2021 04:00 | December 6, 2021 05:45 | 1h 45m | 762 | 1,334 |
| 9 | November 23, 2021 20:30 | November 24, 2021 06:30 | 10h | 746 | 1,976 |
| 10 | December 11, 2021 07:15 | December 11, 2021 16:30 | 9h 15m | 741 | 1,811 |
Outage episodes by size in 2021: 27 reached 100+ customers, 5 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 Jasper 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 |
| Consumers Energy Coop - (IA) | 2021 | 1.8 hrs | 1.39 | 1.8 hrs | 1.39 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Pella Cooperative Elec Assn | - | - | - | - | - |
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 ÷ 15,566 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. Jasper County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jasper 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/jasper-county