County annual report · FIPS 19165
2015 Shelby County, IA Power Outage Report
In 2015, customers in Shelby County, IA went without power for an average of 1.3 hours, a total of 9,437 customer-hours (Iowa average 1.1 hours). That ranks 39th worst of 99 Iowa counties and 1585th 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 Shelby 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 26, 2015 22:30 | November 27, 2015 10:30 | 12h | 1,017 | 5,582 |
| 2 | August 28, 2015 17:45 | August 28, 2015 20:15 | 2h 30m | 810 | 1,218 |
| 3 | November 27, 2015 14:30 | November 27, 2015 20:00 | 5h 30m | 396 | 205 |
| 4 | November 12, 2015 02:00 | November 12, 2015 06:45 | 4h 45m | 297 | 1,143 |
| 5 | October 22, 2015 22:15 | October 23, 2015 00:30 | 2h 15m | 243 | 427 |
| 6 | November 27, 2015 21:30 | November 28, 2015 03:45 | 6h 15m | 227 | 575 |
| 7 | November 27, 2015 11:45 | November 27, 2015 12:30 | 45m | 205 | 103 |
| 8 | August 13, 2015 19:45 | August 13, 2015 22:00 | 2h 15m | 24 | 46 |
| 9 | August 31, 2015 21:15 | August 31, 2015 22:30 | 1h 15m | 14 | 14 |
| 10 | September 2, 2015 09:15 | September 2, 2015 13:15 | 4h | 11 | 30 |
Outage episodes by size in 2015: 7 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 Shelby 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2015 | 2.2 hrs | 1.05 | 87 min | 0.88 |
| Western Iowa Power Coop | 2015 | 36 min | 0.48 | 36 min | 0.48 |
| 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 2015; 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, 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/shelby-county