County annual report · FIPS 19129
2018 Mills County, IA Power Outage Report
In 2018, customers in Mills County, IA went without power for an average of 7.6 hours, a total of 55K customer-hours (Iowa average 2.2 hours). That ranks 7th worst of 99 Iowa counties and 722nd of 2,798 nationally.
Compared with IA, the US and 2017
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Mills County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 21, 2018 17:00 | January 22, 2018 00:15 | 7h 15m | 6,702 | 27K |
| 2 | June 12, 2018 00:00 | June 13, 2018 01:45 | 1d 1h | 1,831 | 8,311 |
| 3 | May 19, 2018 20:00 | May 19, 2018 21:15 | 1h 15m | 1,002 | 1,002 |
| 4 | September 2, 2018 02:00 | September 2, 2018 20:15 | 18h 15m | 952 | 4,996 |
| 5 | January 11, 2018 10:30 | January 11, 2018 19:15 | 8h 45m | 931 | 3,339 |
| 6 | August 21, 2018 08:00 | August 21, 2018 11:45 | 3h 45m | 640 | 1,764 |
| 7 | June 26, 2018 13:15 | June 26, 2018 13:30 | 15m | 332 | 83 |
| 8 | July 14, 2018 00:45 | July 14, 2018 05:30 | 4h 45m | 298 | 1,248 |
| 9 | October 8, 2018 21:00 | October 8, 2018 23:15 | 2h 15m | 267 | 355 |
| 10 | July 26, 2018 20:00 | July 26, 2018 22:30 | 2h 30m | 214 | 321 |
Outage episodes by size in 2018: 16 reached 100+ customers, 3 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 Mills County reported on EIA Form 861 for 2018, 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 |
| Southwest Iowa Rural Elec Coop | 2018 | 2.4 hrs | 1.69 | 1.6 hrs | 1.21 |
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 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,270 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. Mills County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mills County, IA annual power outage report, 2018, 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/2018/iowa/mills-county