County annual report · FIPS 19165
2017 Shelby County, IA Power Outage Report
In 2017, customers in Shelby County, IA went without power for an average of 1.4 hours, a total of 9,786 customer-hours (Iowa average 2.0 hours). That ranks 64th worst of 99 Iowa counties and 1887th 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 Shelby 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 17, 2017 01:00 | May 17, 2017 04:15 | 3h 15m | 468 | 539 |
| 2 | May 17, 2017 21:00 | June 2, 2017 07:45 | 15d 10h | 450 | 2,816 |
| 3 | August 21, 2017 07:00 | August 21, 2017 10:00 | 3h | 398 | 984 |
| 4 | December 21, 2017 22:15 | December 22, 2017 03:45 | 5h 30m | 247 | 355 |
| 5 | April 19, 2017 15:45 | April 19, 2017 16:00 | 15m | 221 | 55 |
| 6 | February 24, 2017 07:45 | February 24, 2017 13:30 | 5h 45m | 216 | 584 |
| 7 | October 23, 2017 16:45 | October 23, 2017 19:30 | 2h 45m | 174 | 164 |
| 8 | October 15, 2017 01:15 | October 15, 2017 03:30 | 2h 15m | 153 | 277 |
| 9 | October 25, 2017 09:45 | October 25, 2017 13:45 | 4h | 76 | 286 |
| 10 | October 26, 2017 12:15 | October 26, 2017 16:00 | 3h 45m | 73 | 274 |
Outage episodes by size in 2017: 8 reached 100+ customers, 0 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 Shelby 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2017 | 1.9 hrs | 1.00 | 1.6 hrs | 0.91 |
| Western Iowa Power Coop | 2017 | 37 min | 0.60 | 37 min | 0.60 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Nishnabotna Valley R E C | - | - | - | - | - |
| Harrison County Rrl Elec Coop | - | - | - | - | - |
| Atlantic Municipal Utilities | - | - | - | - | - |
| City of Shelby - (IA) | - | - | - | - | - |
| Harlan Municipal Utilities - (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 ÷ 7,164 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. Shelby County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Shelby 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/shelby-county