County annual report · FIPS 19169
2015 Story County, IA Power Outage Report
In 2015, customers in Story County, IA went without power for an average of 0.3 hours, a total of 22K customer-hours (Iowa average 1.1 hours). That ranks 84th worst of 99 Iowa counties and 2156th 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 Story 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 6, 2015 01:30 | November 6, 2015 21:15 | 19h 45m | 1,579 | 5,017 |
| 2 | June 17, 2015 02:15 | June 17, 2015 04:30 | 2h 15m | 747 | 840 |
| 3 | November 22, 2015 02:30 | November 22, 2015 04:15 | 1h 45m | 722 | 1,264 |
| 4 | October 30, 2015 18:30 | October 30, 2015 21:15 | 2h 45m | 719 | 1,966 |
| 5 | January 13, 2015 23:15 | January 14, 2015 00:30 | 1h 15m | 638 | 638 |
| 6 | June 25, 2015 04:15 | June 25, 2015 07:15 | 3h | 544 | 830 |
| 7 | August 23, 2015 05:00 | August 23, 2015 07:30 | 2h 30m | 489 | 434 |
| 8 | September 26, 2015 20:15 | September 27, 2015 03:15 | 7h | 489 | 934 |
| 9 | September 17, 2015 04:15 | September 17, 2015 07:15 | 3h | 487 | 1,461 |
| 10 | August 28, 2015 00:45 | August 28, 2015 03:15 | 2h 30m | 479 | 1,198 |
Outage episodes by size in 2015: 21 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 Story 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 |
|---|---|---|---|---|---|
| City of Ames - (IA) | 2015 | 39 min | 0.86 | 39 min | 0.86 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Midland Power Coop | - | - | - | - | - |
| Consumers Energy Coop - (IA) | - | - | - | - | - |
| 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 2015; 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, 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/story-county