County annual report · FIPS 19049
2019 Dallas County, IA Power Outage Report
In 2019, customers in Dallas County, IA went without power for an average of 0.8 hours, a total of 46K customer-hours (Iowa average 2.2 hours). That ranks 93rd worst of 99 Iowa counties and 2584th of 2,945 nationally.
Compared with IA, the US and 2018
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Dallas County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 2, 2019 01:30 | July 2, 2019 02:45 | 1h 15m | 2,424 | 1,536 |
| 2 | February 24, 2019 03:00 | February 24, 2019 23:00 | 20h | 2,173 | 6,917 |
| 3 | June 21, 2019 04:30 | June 21, 2019 06:45 | 2h 15m | 1,986 | 2,157 |
| 4 | August 20, 2019 10:30 | August 21, 2019 03:30 | 17h | 1,612 | 2,821 |
| 5 | May 28, 2019 12:15 | May 29, 2019 05:00 | 16h 45m | 1,594 | 4,028 |
| 6 | November 15, 2019 15:15 | November 15, 2019 20:45 | 5h 30m | 1,106 | 1,822 |
| 7 | August 9, 2019 10:00 | August 9, 2019 10:15 | 15m | 970 | 243 |
| 8 | August 18, 2019 08:30 | August 18, 2019 16:00 | 7h 30m | 797 | 1,903 |
| 9 | February 15, 2019 18:30 | February 15, 2019 20:15 | 1h 45m | 780 | 781 |
| 10 | June 28, 2019 23:15 | June 29, 2019 05:00 | 5h 45m | 678 | 2,294 |
Outage episodes by size in 2019: 36 reached 100+ customers, 6 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 Dallas County reported on EIA Form 861 for 2019, 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 | 2018 | 1.9 hrs | 1.18 | 75 min | 0.96 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Midland Power Coop | - | - | - | - | - |
| Waverly Municipal Elec Utility | - | - | - | - | - |
| Guthrie County Rural E C A | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 89% of Iowa's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 58,451 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. Dallas County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dallas County, IA annual power outage report, 2019, 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/2019/iowa/dallas-county