County annual report · FIPS 19029
2020 Cass County, IA Power Outage Report
In 2020, customers in Cass County, IA went without power for an average of 0.7 hours, a total of 7,348 customer-hours (Iowa average 27.4 hours). That ranks 92nd worst of 99 Iowa counties and 2767th 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 Cass 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 | October 9, 2020 16:00 | October 13, 2020 15:30 | 3d 23h | 809 | 1,513 |
| 2 | May 14, 2020 16:30 | May 14, 2020 21:15 | 4h 45m | 536 | 818 |
| 3 | August 7, 2020 18:15 | August 7, 2020 19:30 | 1h 15m | 498 | 623 |
| 4 | September 1, 2020 19:15 | September 1, 2020 20:45 | 1h 30m | 329 | 494 |
| 5 | August 10, 2020 15:00 | August 11, 2020 00:15 | 9h 15m | 144 | 389 |
| 6 | June 7, 2020 14:45 | June 8, 2020 13:15 | 22h 30m | 114 | 215 |
| 7 | September 26, 2020 21:45 | September 28, 2020 13:45 | 1d 16h | 112 | 1,246 |
| 8 | September 28, 2020 14:45 | September 28, 2020 18:45 | 4h | 89 | 84 |
| 9 | July 1, 2020 07:45 | July 1, 2020 13:30 | 5h 45m | 87 | 331 |
| 10 | June 10, 2020 03:00 | June 10, 2020 09:00 | 6h | 64 | 193 |
Outage episodes by size in 2020: 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 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 |
| Southwest Iowa Rural Elec Coop | 2018 | 2.4 hrs | 1.69 | 1.6 hrs | 1.21 |
| Farmers Electric Coop, Inc - (IA) | 2018 | 5.9 hrs | 1.44 | 2.1 hrs | 1.26 |
| 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 91% of Iowa's customers in 2020; 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, 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/cass-county