County annual report · FIPS 19165
2020 Shelby County, IA Power Outage Report
In 2020, customers in Shelby County, IA went without power for an average of 1.4 hours, a total of 9,730 customer-hours (Iowa average 27.4 hours). That ranks 75th worst of 99 Iowa counties and 2516th of 3,019 nationally.
Compared with IA, the US and 2019
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Shelby County, 2020
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 15, 2020 12:30 | May 15, 2020 14:15 | 1h 45m | 426 | 541 |
| 2 | November 2, 2020 21:15 | November 2, 2020 23:45 | 2h 30m | 340 | 595 |
| 3 | December 7, 2020 20:00 | December 13, 2020 01:30 | 5d 5h | 304 | 401 |
| 4 | December 15, 2020 14:45 | December 15, 2020 15:00 | 15m | 302 | 76 |
| 5 | April 27, 2020 14:00 | April 27, 2020 19:45 | 5h 45m | 236 | 289 |
| 6 | April 12, 2020 23:00 | April 13, 2020 02:00 | 3h | 225 | 372 |
| 7 | September 9, 2020 15:15 | September 9, 2020 16:45 | 1h 30m | 225 | 338 |
| 8 | March 1, 2020 10:30 | March 1, 2020 12:15 | 1h 45m | 224 | 219 |
| 9 | June 6, 2020 15:30 | June 10, 2020 18:00 | 4d 2h | 171 | 215 |
| 10 | November 3, 2020 16:00 | November 10, 2020 17:15 | 7d 1h | 144 | 359 |
Outage episodes by size in 2020: 12 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 2020, 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 | 2020 | 18.3 hrs | 1.43 | 82 min | 0.79 |
| Western Iowa Power Coop | 2018 | 47 min | 0.76 | 47 min | 0.76 |
| 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 91% of Iowa's customers in 2020; 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, 2020, 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/2020/iowa/shelby-county