County annual report · FIPS 19055
2019 Delaware County, IA Power Outage Report
In 2019, customers in Delaware County, IA went without power for an average of 3.2 hours, a total of 23K customer-hours (Iowa average 2.2 hours). That ranks 29th worst of 99 Iowa counties and 1558th of 2,945 nationally.
Compared with IA, the US and 2018
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Delaware County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 10, 2019 04:00 | September 10, 2019 18:45 | 14h 45m | 2,593 | 9,192 |
| 2 | September 19, 2019 12:45 | September 19, 2019 13:30 | 45m | 1,498 | 1,123 |
| 3 | June 30, 2019 22:15 | July 2, 2019 13:45 | 1d 15h | 1,444 | 3,411 |
| 4 | May 4, 2019 08:30 | May 4, 2019 09:45 | 1h 15m | 1,335 | 1,669 |
| 5 | April 8, 2019 17:00 | April 9, 2019 12:15 | 19h 15m | 629 | 438 |
| 6 | January 8, 2019 20:45 | January 9, 2019 01:45 | 5h | 527 | 363 |
| 7 | July 22, 2019 19:30 | July 22, 2019 22:00 | 2h 30m | 479 | 366 |
| 8 | September 5, 2019 18:00 | September 5, 2019 20:30 | 2h 30m | 374 | 100 |
| 9 | May 3, 2019 22:00 | May 3, 2019 22:45 | 45m | 253 | 120 |
| 10 | June 28, 2019 12:00 | June 28, 2019 16:30 | 4h 30m | 245 | 372 |
Outage episodes by size in 2019: 21 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 Delaware County reported on EIA Form 861 for 2019, 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 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 89% of Iowa's customers in 2019; 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, 2019, 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/2019/iowa/delaware-county