County annual report · FIPS 38017
2017 Cass County, ND Power Outage Report
In 2017, customers in Cass County, ND went without power for an average of 1.0 hours, a total of 121K customer-hours (North Dakota average 0.9 hours). That ranks 8th worst of 34 North Dakota counties and 2049th of 2,786 nationally.
Compared with ND, the US and 2016
Coverage line is EAGLE-I's share of North Dakota 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 | December 18, 2017 03:30 | December 18, 2017 12:00 | 8h 30m | 7,418 | 28K |
| 2 | September 20, 2017 09:45 | September 21, 2017 01:00 | 15h 15m | 4,179 | 11K |
| 3 | June 14, 2017 02:00 | June 15, 2017 15:30 | 1d 13h | 4,032 | 14K |
| 4 | June 28, 2017 07:30 | June 28, 2017 07:45 | 15m | 4,011 | 1,003 |
| 5 | August 2, 2017 22:45 | August 3, 2017 00:45 | 2h | 3,941 | 5,902 |
| 6 | September 1, 2017 19:00 | September 2, 2017 00:00 | 5h | 3,823 | 965 |
| 7 | October 7, 2017 09:15 | October 7, 2017 12:45 | 3h 30m | 3,402 | 5,368 |
| 8 | August 3, 2017 17:15 | August 3, 2017 19:00 | 1h 45m | 3,083 | 1,831 |
| 9 | April 9, 2017 15:30 | April 9, 2017 15:45 | 15m | 3,014 | 754 |
| 10 | April 26, 2017 01:15 | April 26, 2017 01:30 | 15m | 2,814 | 704 |
Outage episodes by size in 2017: 79 reached 100+ customers, 16 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 |
|---|---|---|---|---|---|
| Otter Tail Power Co | 2017 | 2.4 hrs | 2.12 | 2.0 hrs | 2.00 |
| Northern States Power Co - Minnesota | 2017 | 1.6 hrs | 0.73 | 58 min | 0.61 |
| Nodak Electric Coop Inc | 2017 | 2.6 hrs | 1.21 | 2.6 hrs | 1.15 |
| Cass County Elec Coop Inc | 2017 | 43 min | 0.80 | 30 min | 0.71 |
| 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 2017; 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, 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/north-dakota/cass-county