County annual report · FIPS 19043
2018 Clayton County, IA Power Outage Report
In 2018, customers in Clayton County, IA went without power for an average of 1.0 hours, a total of 10K customer-hours (Iowa average 2.2 hours). That ranks 84th worst of 99 Iowa counties and 2321st 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 Clayton 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 | March 6, 2018 21:45 | March 7, 2018 01:15 | 3h 30m | 1,941 | 2,294 |
| 2 | July 7, 2018 02:45 | July 7, 2018 04:00 | 1h 15m | 512 | 631 |
| 3 | February 11, 2018 20:15 | February 14, 2018 22:00 | 3d 1h | 394 | 669 |
| 4 | May 8, 2018 16:15 | May 8, 2018 18:30 | 2h 15m | 318 | 581 |
| 5 | October 20, 2018 17:00 | October 20, 2018 22:15 | 5h 15m | 198 | 385 |
| 6 | July 5, 2018 20:45 | July 5, 2018 21:45 | 1h | 142 | 142 |
| 7 | January 1, 2018 16:45 | January 1, 2018 18:30 | 1h 45m | 138 | 162 |
| 8 | May 26, 2018 22:15 | May 27, 2018 01:30 | 3h 15m | 120 | 330 |
| 9 | April 14, 2018 20:15 | April 16, 2018 13:45 | 1d 17h | 114 | 319 |
| 10 | September 13, 2018 13:30 | September 13, 2018 19:45 | 6h 15m | 104 | 601 |
Outage episodes by size in 2018: 11 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 Clayton 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 |
|---|---|---|---|---|---|
| Maquoketa Valley Rrl Elec Coop | 2018 | 52 min | 0.96 | 50 min | 0.93 |
| Allamakee-Clayton El Coop, Inc | 2018 | 1.5 hrs | 0.73 | 1.5 hrs | 0.73 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| East-Central Iowa Rural Elec Coop | - | - | - | - | - |
| City of Guttenberg | - | - | - | - | - |
| City of McGregor- (IA) | - | - | - | - | - |
| City of Strawberry Point | - | - | - | - | - |
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 ÷ 10,421 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. Clayton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clayton 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/clayton-county