County annual report · FIPS 38017
2019 Cass County, ND Power Outage Report
In 2019, customers in Cass County, ND went without power for an average of 2.3 hours, a total of 282K customer-hours (North Dakota average 1.1 hours). That ranks 7th worst of 35 North Dakota counties and 1940th of 2,945 nationally.
Compared with ND, the US and 2018
Coverage line is EAGLE-I's share of North Dakota customers tracked each year.
Biggest outages in Cass County, 2019
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 2, 2019 22:45 | September 4, 2019 22:45 | 2d | 20,585 | 122K |
| 2 | March 14, 2019 09:15 | March 15, 2019 01:15 | 16h | 10,309 | 3,572 |
| 3 | June 29, 2019 17:15 | July 1, 2019 04:15 | 1d 11h | 9,502 | 54K |
| 4 | August 16, 2019 14:45 | August 16, 2019 18:45 | 4h | 4,138 | 1,138 |
| 5 | May 30, 2019 22:30 | May 31, 2019 09:30 | 11h | 3,998 | 3,697 |
| 6 | March 9, 2019 11:45 | March 9, 2019 16:00 | 4h 15m | 3,486 | 9,723 |
| 7 | December 9, 2019 06:45 | December 9, 2019 09:00 | 2h 15m | 3,458 | 5,088 |
| 8 | February 12, 2019 14:15 | February 12, 2019 18:30 | 4h 15m | 3,240 | 2,052 |
| 9 | March 9, 2019 17:15 | March 9, 2019 20:45 | 3h 30m | 3,178 | 2,403 |
| 10 | May 8, 2019 17:00 | May 8, 2019 18:30 | 1h 30m | 2,978 | 958 |
Outage episodes by size in 2019: 78 reached 100+ customers, 21 reached 1,000+ customers, 2 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 2019, 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 | 2018 | 1.8 hrs | 1.30 | 1.7 hrs | 1.23 |
| Northern States Power Co - Minnesota | 2018 | 90 min | 0.73 | 69 min | 0.62 |
| Nodak Electric Coop Inc | 2018 | 2.6 hrs | 1.25 | 2.6 hrs | 1.25 |
| Cass County Elec Coop Inc | 2018 | 45 min | 0.72 | 34 min | 0.62 |
| 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 53% of North Dakota's customers in 2019; 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, 2019, 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/2019/north-dakota/cass-county