County annual report · FIPS 19161
2016 Sac County, IA Power Outage Report
In 2016, customers in Sac County, IA went without power for an average of 1.8 hours, a total of 6,820 customer-hours (Iowa average 1.8 hours). That ranks 56th worst of 99 Iowa counties and 1433rd of 2,391 nationally.
Compared with IA, the US and 2015
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Sac County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 7, 2016 01:45 | March 7, 2016 04:15 | 2h 30m | 1,234 | 2,777 |
| 2 | August 22, 2016 18:00 | August 22, 2016 20:30 | 2h 30m | 252 | 475 |
| 3 | March 24, 2016 16:30 | March 24, 2016 23:30 | 7h | 173 | 70 |
| 4 | July 6, 2016 04:45 | July 7, 2016 04:30 | 23h 45m | 170 | 1,511 |
| 5 | July 20, 2016 21:00 | July 20, 2016 23:45 | 2h 45m | 170 | 408 |
| 6 | July 13, 2016 15:00 | July 13, 2016 18:30 | 3h 30m | 164 | 286 |
| 7 | July 1, 2016 13:45 | July 1, 2016 14:00 | 15m | 162 | 41 |
| 8 | August 15, 2016 04:45 | August 15, 2016 07:30 | 2h 45m | 98 | 253 |
| 9 | February 6, 2016 20:45 | February 7, 2016 01:00 | 4h 15m | 94 | 51 |
| 10 | March 24, 2016 08:15 | March 24, 2016 13:45 | 5h 30m | 92 | 334 |
Outage episodes by size in 2016: 7 reached 100+ customers, 1 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 Sac County reported on EIA Form 861 for 2016, 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 | 2016 | 3.6 hrs | 1.64 | 83 min | 0.90 |
| Iowa Lakes Electric Coop | 2016 | 55 min | 0.50 | 54 min | 0.49 |
| Western Iowa Power Coop | 2016 | 81 min | 0.99 | 76 min | 0.95 |
| North West Rural Electric Coop | - | - | - | - | - |
| Raccoon Valley Electric Cooperative | - | - | - | - | - |
| Calhoun County Elec Coop Assn | - | - | - | - | - |
| City of Auburn - (IA) | - | - | - | - | - |
| City of Lake View - (IA) | - | - | - | - | - |
| City of Wall Lake - (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 n/a of Iowa's customers in 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,895 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. Sac County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sac County, IA annual power outage report, 2016, 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/2016/iowa/sac-county