County annual report · FIPS 19055
2017 Delaware County, IA Power Outage Report
In 2017, customers in Delaware County, IA went without power for an average of 1.3 hours, a total of 9,171 customer-hours (Iowa average 2.0 hours). That ranks 67th worst of 99 Iowa counties and 1909th 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 Delaware 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 | May 29, 2017 04:45 | May 29, 2017 06:15 | 1h 30m | 1,508 | 2,262 |
| 2 | June 16, 2017 06:15 | June 16, 2017 17:15 | 11h | 1,272 | 1,904 |
| 3 | August 30, 2017 22:00 | August 31, 2017 01:30 | 3h 30m | 420 | 252 |
| 4 | March 25, 2017 17:30 | March 25, 2017 19:30 | 2h | 368 | 369 |
| 5 | June 14, 2017 11:45 | June 14, 2017 14:30 | 2h 45m | 352 | 704 |
| 6 | August 23, 2017 13:30 | August 23, 2017 18:30 | 5h | 216 | 963 |
| 7 | October 2, 2017 06:45 | October 2, 2017 09:30 | 2h 45m | 211 | 580 |
| 8 | July 10, 2017 07:30 | July 10, 2017 16:15 | 8h 45m | 140 | 543 |
| 9 | March 7, 2017 03:45 | March 7, 2017 06:45 | 3h | 117 | 196 |
| 10 | June 17, 2017 04:00 | June 17, 2017 06:15 | 2h 15m | 96 | 133 |
Outage episodes by size in 2017: 9 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 Delaware 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 |
|---|---|---|---|---|---|
| Maquoketa Valley Rrl Elec Coop | 2017 | 76 min | 1.06 | 63 min | 0.96 |
| Allamakee-Clayton El Coop, Inc | 2017 | 5.3 hrs | 1.48 | 3.5 hrs | 1.37 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| East-Central Iowa Rural Elec Coop | - | - | - | - | - |
| City of Earlville - (IA) | - | - | - | - | - |
| City of Hopkinton - (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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,035 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. Delaware County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Delaware 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/delaware-county