County annual report · FIPS 19079
2016 Hamilton County, IA Power Outage Report
In 2016, customers in Hamilton County, IA went without power for an average of 0.6 hours, a total of 5,090 customer-hours (Iowa average 1.8 hours). That ranks 90th worst of 99 Iowa counties and 1995th 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 Hamilton 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 | February 3, 2016 07:00 | February 3, 2016 09:45 | 2h 45m | 1,123 | 2,248 |
| 2 | July 17, 2016 08:45 | July 18, 2016 12:45 | 1d 4h | 1,094 | 1,213 |
| 3 | June 28, 2016 06:15 | June 28, 2016 08:45 | 2h 30m | 191 | 299 |
| 4 | December 22, 2016 17:00 | December 22, 2016 17:45 | 45m | 178 | 134 |
| 5 | May 9, 2016 12:15 | May 9, 2016 17:15 | 5h | 111 | 146 |
| 6 | October 21, 2016 10:00 | October 21, 2016 12:15 | 2h 15m | 107 | 111 |
| 7 | August 11, 2016 10:15 | August 11, 2016 14:15 | 4h | 88 | 54 |
| 8 | October 12, 2016 02:15 | October 12, 2016 03:30 | 1h 15m | 83 | 64 |
| 9 | July 6, 2016 06:00 | July 6, 2016 13:15 | 7h 15m | 75 | 124 |
| 10 | September 15, 2016 14:00 | September 15, 2016 15:45 | 1h 45m | 30 | 37 |
Outage episodes by size in 2016: 6 reached 100+ customers, 2 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 Hamilton 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 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Midland Power Coop | - | - | - | - | - |
| Prairie Energy Coop | - | - | - | - | - |
| City of Story City - (IA) | - | - | - | - | - |
| Cass Electric Coop | - | - | - | - | - |
| City of Stratford - (IA) | - | - | - | - | - |
| City of Ellsworth - (IA) | - | - | - | - | - |
| City of Stanhope - (IA) | - | - | - | - | - |
| City of Webster City - (IA) | - | - | - | - | - |
| Pleasant Hill Community Line | - | - | - | - | - |
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 ÷ 9,205 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. Hamilton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hamilton 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/hamilton-county