County annual report · FIPS 38017
2020 Cass County, ND Power Outage Report
In 2020, customers in Cass County, ND went without power for an average of 1.4 hours, a total of 172K customer-hours (North Dakota average 1.3 hours). That ranks 27th worst of 51 North Dakota counties and 2504th of 3,019 nationally.
Compared with ND, the US and 2019
Coverage line is EAGLE-I's share of North Dakota 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 | June 8, 2020 00:15 | June 9, 2020 05:15 | 1d 5h | 8,456 | 78K |
| 2 | August 14, 2020 11:00 | August 15, 2020 04:15 | 17h 15m | 7,914 | 18K |
| 3 | April 2, 2020 23:30 | April 3, 2020 04:00 | 4h 30m | 6,301 | 2,061 |
| 4 | April 23, 2020 13:15 | April 23, 2020 14:00 | 45m | 5,476 | 1,687 |
| 5 | August 21, 2020 18:45 | August 21, 2020 23:00 | 4h 15m | 3,315 | 2,078 |
| 6 | October 14, 2020 15:45 | October 14, 2020 21:30 | 5h 45m | 3,073 | 3,183 |
| 7 | July 24, 2020 23:30 | July 25, 2020 19:00 | 19h 30m | 2,092 | 9,665 |
| 8 | January 17, 2020 07:45 | January 17, 2020 17:45 | 10h | 1,761 | 750 |
| 9 | August 1, 2020 15:00 | August 1, 2020 20:00 | 5h | 1,372 | 1,825 |
| 10 | October 27, 2020 16:45 | October 27, 2020 18:00 | 1h 15m | 1,304 | 352 |
Outage episodes by size in 2020: 88 reached 100+ customers, 14 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 |
|---|---|---|---|---|---|
| Otter Tail Power Co | 2020 | 1.6 hrs | 1.40 | 1.6 hrs | 1.40 |
| Northern States Power Co - Minnesota | 2020 | 1.7 hrs | 0.84 | 68 min | 0.71 |
| Nodak Electric Coop Inc | 2020 | 4.0 hrs | 1.59 | 2.5 hrs | 1.22 |
| Cass County Elec Coop Inc | 2020 | 48 min | 0.58 | 27 min | 0.44 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 66% of North Dakota's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 124,603 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, ND 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/north-dakota/cass-county