County annual report · FIPS 19029
2017 Cass County, IA Power Outage Report
In 2017, customers in Cass County, IA went without power for an average of 1.2 hours, a total of 12K customer-hours (Iowa average 2.0 hours). That ranks 72nd worst of 99 Iowa counties and 1977th of 2,786 nationally.
Compared with IA, the US and 2016
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Cass County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 18, 2017 21:15 | September 19, 2017 15:00 | 17h 45m | 966 | 261 |
| 2 | June 17, 2017 02:15 | June 19, 2017 21:00 | 2d 18h | 958 | 5,425 |
| 3 | June 26, 2017 13:30 | June 26, 2017 15:15 | 1h 45m | 332 | 416 |
| 4 | February 16, 2017 12:45 | February 16, 2017 15:30 | 2h 45m | 247 | 508 |
| 5 | July 16, 2017 15:45 | July 18, 2017 15:15 | 1d 23h | 118 | 2,677 |
| 6 | December 21, 2017 19:00 | December 21, 2017 21:00 | 2h | 114 | 228 |
| 7 | June 11, 2017 21:00 | June 12, 2017 01:00 | 4h | 110 | 425 |
| 8 | September 17, 2017 04:45 | September 17, 2017 10:15 | 5h 30m | 94 | 489 |
| 9 | June 14, 2017 05:30 | June 14, 2017 10:30 | 5h | 74 | 150 |
| 10 | October 6, 2017 19:15 | October 6, 2017 22:00 | 2h 45m | 72 | 198 |
Outage episodes by size in 2017: 7 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 Cass County reported on EIA Form 861 for 2017, 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 | 2017 | 1.9 hrs | 1.00 | 1.6 hrs | 0.91 |
| Southwest Iowa Rural Elec Coop | 2017 | 1.6 hrs | 1.05 | 78 min | 1.00 |
| Farmers Electric Coop, Inc - (IA) | 2017 | 24 min | 0.23 | 24 min | 0.23 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Waverly Municipal Elec Utility | - | - | - | - | - |
| Guthrie County Rural E C A | - | - | - | - | - |
| Nishnabotna Valley R E C | - | - | - | - | - |
| Atlantic Municipal Utilities | - | - | - | - | - |
| City of Anita - (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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 10,329 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. Cass County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cass County, IA annual power outage report, 2017, 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/2017/iowa/cass-county