County annual report · FIPS 19169
2020 Story County, IA Power Outage Report
In 2020, customers in Story County, IA went without power for an average of 31.3 hours, a total of 2.0M customer-hours (Iowa average 27.4 hours). That ranks 14th worst of 99 Iowa counties and 264th 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 Story 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 | August 10, 2020 16:15 | August 21, 2020 23:45 | 11d 7h | 35,836 | 1.9M |
| 2 | January 23, 2020 08:15 | January 23, 2020 14:30 | 6h 15m | 4,711 | 5,326 |
| 3 | August 26, 2020 19:45 | August 27, 2020 12:30 | 16h 45m | 1,807 | 14K |
| 4 | April 22, 2020 02:00 | April 22, 2020 04:15 | 2h 15m | 1,617 | 3,080 |
| 5 | August 27, 2020 14:15 | August 27, 2020 16:45 | 2h 30m | 1,563 | 2,328 |
| 6 | April 12, 2020 22:15 | April 13, 2020 12:00 | 13h 45m | 1,446 | 19K |
| 7 | July 15, 2020 00:15 | July 15, 2020 03:15 | 3h | 1,164 | 735 |
| 8 | August 6, 2020 22:15 | August 6, 2020 23:45 | 1h 30m | 882 | 962 |
| 9 | June 26, 2020 00:00 | June 26, 2020 01:45 | 1h 45m | 880 | 674 |
| 10 | July 12, 2020 15:45 | July 12, 2020 17:00 | 1h 15m | 880 | 921 |
Outage episodes by size in 2020: 40 reached 100+ customers, 7 reached 1,000+ customers, 1 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 Story 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 |
|---|---|---|---|---|---|
| Consumers Energy Coop - (IA) | 2020 | 35.0 hrs | 2.79 | 69 min | 1.26 |
| City of Ames - (IA) | 2020 | 35.6 hrs | 1.77 | 35 min | 0.35 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Midland Power Coop | - | - | - | - | - |
| City of Story City - (IA) | - | - | - | - | - |
| City of State Center - (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 ÷ 63,396 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. Story County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Story 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/story-county