County annual report · FIPS 19101
2017 Jefferson County, IA Power Outage Report
In 2017, customers in Jefferson County, IA went without power for an average of 2.5 hours, a total of 17K customer-hours (Iowa average 2.0 hours). That ranks 29th worst of 99 Iowa counties and 1466th of 2,786 nationally.
Compared with IA, the US and 2016
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Jefferson County, 2017
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, 2017 03:45 | March 7, 2017 17:30 | 13h 45m | 1,519 | 8,517 |
| 2 | June 29, 2017 01:15 | June 29, 2017 05:30 | 4h 15m | 1,189 | 605 |
| 3 | August 8, 2017 15:00 | August 8, 2017 15:45 | 45m | 1,189 | 298 |
| 4 | October 9, 2017 14:45 | October 9, 2017 16:15 | 1h 30m | 1,166 | 1,221 |
| 5 | March 28, 2017 18:30 | March 28, 2017 21:00 | 2h 30m | 573 | 1,188 |
| 6 | June 29, 2017 22:45 | June 30, 2017 03:00 | 4h 15m | 288 | 1,215 |
| 7 | September 22, 2017 04:15 | September 22, 2017 09:45 | 5h 30m | 198 | 1,042 |
| 8 | July 2, 2017 13:15 | July 2, 2017 15:00 | 1h 45m | 158 | 269 |
| 9 | October 19, 2017 18:15 | October 19, 2017 20:15 | 2h | 138 | 276 |
| 10 | May 25, 2017 13:45 | May 25, 2017 15:15 | 1h 30m | 119 | 179 |
Outage episodes by size in 2017: 14 reached 100+ customers, 4 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 Jefferson County reported on EIA Form 861 for 2017, 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 |
|---|---|---|---|---|---|
| T I P Rural Electric Coop | 2017 | 2.8 hrs | 2.31 | 2.8 hrs | 2.31 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Access Energy Coop | - | - | - | - | - |
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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 6,879 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, IA annual power outage report, 2017, 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/2017/iowa/jefferson-county