County annual report · FIPS 19055
2015 Delaware County, IA Power Outage Report
In 2015, customers in Delaware County, IA went without power for an average of 2.2 hours, a total of 16K customer-hours (Iowa average 1.1 hours). That ranks 18th worst of 99 Iowa counties and 1156th of 2,484 nationally.
Compared with IA, the US
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Delaware County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 18, 2015 10:00 | November 18, 2015 15:00 | 5h | 2,270 | 3,239 |
| 2 | June 22, 2015 13:15 | June 23, 2015 19:45 | 1d 6h | 2,026 | 6,466 |
| 3 | June 23, 2015 20:30 | June 23, 2015 21:15 | 45m | 764 | 192 |
| 4 | May 7, 2015 11:00 | May 7, 2015 12:15 | 1h 15m | 763 | 763 |
| 5 | May 24, 2015 16:00 | May 24, 2015 18:15 | 2h 15m | 696 | 1,028 |
| 6 | November 12, 2015 10:45 | November 12, 2015 20:15 | 9h 30m | 474 | 1,232 |
| 7 | October 22, 2015 14:30 | October 22, 2015 15:45 | 1h 15m | 363 | 326 |
| 8 | September 1, 2015 07:15 | September 1, 2015 11:00 | 3h 45m | 217 | 814 |
| 9 | September 3, 2015 22:15 | September 4, 2015 00:00 | 1h 45m | 196 | 294 |
| 10 | June 11, 2015 19:00 | June 11, 2015 20:45 | 1h 45m | 146 | 256 |
Outage episodes by size in 2015: 10 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 2015, 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 | 2015 | 58 min | 0.96 | 39 min | 0.86 |
| Allamakee-Clayton El Coop, Inc | 2015 | 2.1 hrs | 0.88 | 40 min | 0.34 |
| 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 2015; 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, 2015, 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/2015/iowa/delaware-county