County annual report · FIPS 19169
2023 Story County, IA Power Outage Report
In 2023, customers in Story County, IA went without power for an average of 1.2 hours, a total of 77K customer-hours (Iowa average 2.0 hours). That ranks 69th worst of 99 Iowa counties and 2589th of 2,977 nationally.
Compared with IA, the US and 2022
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Story County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 27, 2023 18:45 | October 28, 2023 00:00 | 5h 15m | 6,111 | 29K |
| 2 | October 30, 2023 13:45 | October 30, 2023 19:15 | 5h 30m | 5,754 | 6,346 |
| 3 | November 4, 2023 14:45 | November 4, 2023 21:15 | 6h 30m | 1,454 | 6,176 |
| 4 | January 19, 2023 03:45 | January 19, 2023 05:45 | 2h | 1,397 | 2,445 |
| 5 | June 9, 2023 06:15 | June 9, 2023 08:00 | 1h 45m | 907 | 1,180 |
| 6 | December 28, 2023 15:15 | December 28, 2023 23:45 | 8h 30m | 715 | 1,049 |
| 7 | January 18, 2023 18:30 | January 18, 2023 19:45 | 1h 15m | 655 | 299 |
| 8 | November 5, 2023 16:45 | November 5, 2023 18:45 | 2h | 552 | 947 |
| 9 | April 27, 2023 07:45 | April 27, 2023 10:45 | 3h | 517 | 1,422 |
| 10 | May 7, 2023 21:00 | May 9, 2023 02:00 | 1d 5h | 489 | 11K |
Outage episodes by size in 2023: 29 reached 100+ customers, 4 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 Story County reported on EIA Form 861 for 2023, 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) | 2023 | 1.9 hrs | 0.92 | 1.9 hrs | 0.92 |
| City of Ames - (IA) | 2023 | 33 min | 0.40 | 15 min | 0.13 |
| 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 n/a of Iowa's customers in 2023; 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, 2023, 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/2023/iowa/story-county