County annual report · FIPS 38017
2023 Cass County, ND Power Outage Report
In 2023, customers in Cass County, ND went without power for an average of 2.4 hours, a total of 301K customer-hours (North Dakota average 4.1 hours). That ranks 21st worst of 51 North Dakota counties and 2145th of 2,977 nationally.
Compared with ND, the US and 2022
Coverage line is EAGLE-I's share of North Dakota customers tracked each year.
Biggest outages in Cass County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 3, 2023 22:30 | August 4, 2023 03:15 | 4h 45m | 17,045 | 28K |
| 2 | October 4, 2023 21:00 | October 4, 2023 22:15 | 1h 15m | 15,314 | 5,852 |
| 3 | March 22, 2023 01:15 | March 22, 2023 03:30 | 2h 15m | 9,733 | 8,549 |
| 4 | November 15, 2023 03:00 | November 15, 2023 05:30 | 2h 30m | 5,768 | 10K |
| 5 | December 25, 2023 21:15 | January 1, 2024 00:00 | 6d 2h | 3,831 | 176K |
| 6 | August 6, 2023 00:15 | August 6, 2023 03:45 | 3h 30m | 3,446 | 5,626 |
| 7 | August 2, 2023 13:15 | August 2, 2023 17:30 | 4h 15m | 2,919 | 2,832 |
| 8 | May 21, 2023 16:15 | May 21, 2023 21:00 | 4h 45m | 2,548 | 6,639 |
| 9 | December 14, 2023 15:30 | December 14, 2023 20:00 | 4h 30m | 2,528 | 1,856 |
| 10 | December 7, 2023 15:00 | December 8, 2023 13:45 | 22h 45m | 1,533 | 591 |
Outage episodes by size in 2023: 82 reached 100+ customers, 20 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 2023, 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 | 2023 | 2.4 hrs | 1.78 | 1.9 hrs | 1.68 |
| Northern States Power Co - Minnesota | 2023 | 1.7 hrs | 0.86 | 74 min | 0.77 |
| Nodak Electric Coop Inc | 2023 | 5.0 hrs | 1.56 | 2.8 hrs | 1.40 |
| Cass County Elec Coop Inc | 2023 | 7.3 hrs | 0.83 | 23 min | 0.45 |
| 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 n/a of North Dakota's customers in 2023; 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, 2023, 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/2023/north-dakota/cass-county