County annual report · FIPS 19003
2020 Adams County, IA Power Outage Report
In 2020, customers in Adams County, IA went without power for an average of 13.7 hours, a total of 25K customer-hours (Iowa average 27.4 hours). That ranks 21st worst of 99 Iowa counties and 606th of 3,019 nationally.
Compared with IA, the US and 2019
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Adams County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 25, 2020 20:15 | November 29, 2020 22:15 | 4d 2h | 666 | 1,182 |
| 2 | June 7, 2020 14:45 | June 8, 2020 13:15 | 22h 30m | 553 | 3,591 |
| 3 | May 28, 2020 01:30 | May 28, 2020 13:15 | 11h 45m | 490 | 594 |
| 4 | September 26, 2020 21:45 | September 30, 2020 13:00 | 3d 15h | 396 | 4,374 |
| 5 | October 23, 2020 00:15 | October 23, 2020 13:00 | 12h 45m | 315 | 603 |
| 6 | July 13, 2020 16:45 | July 13, 2020 17:00 | 15m | 211 | 53 |
| 7 | May 25, 2020 01:15 | May 26, 2020 14:15 | 1d 13h | 207 | 2,196 |
| 8 | April 25, 2020 08:00 | April 25, 2020 09:30 | 1h 30m | 185 | 116 |
| 9 | July 28, 2020 19:00 | July 28, 2020 20:45 | 1h 45m | 165 | 230 |
| 10 | January 4, 2020 11:00 | January 4, 2020 11:45 | 45m | 123 | 92 |
Outage episodes by size in 2020: 12 reached 100+ customers, 0 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 Adams County reported on EIA Form 861 for 2020, 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 | 2020 | 18.3 hrs | 1.43 | 82 min | 0.79 |
| Southwest Iowa Rural Elec Coop | 2018 | 2.4 hrs | 1.69 | 1.6 hrs | 1.21 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| City of Corning - (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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,844 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. Adams County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Adams County, IA annual power outage report, 2020, 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/2020/iowa/adams-county