County annual report · FIPS 38017
2018 Cass County, ND Power Outage Report
In 2018, customers in Cass County, ND went without power for an average of 0.4 hours, a total of 50K customer-hours (North Dakota average 0.7 hours). That ranks 24th worst of 31 North Dakota counties and 2551st of 2,798 nationally.
Compared with ND, the US and 2017
Coverage line is EAGLE-I's share of North Dakota customers tracked each year.
Biggest outages in Cass County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 15, 2018 13:30 | July 15, 2018 16:00 | 2h 30m | 3,906 | 5,638 |
| 2 | June 27, 2018 00:00 | June 27, 2018 03:00 | 3h | 3,409 | 6,287 |
| 3 | November 28, 2018 22:30 | November 28, 2018 22:45 | 15m | 3,061 | 765 |
| 4 | August 5, 2018 14:15 | August 6, 2018 00:30 | 10h 15m | 1,256 | 4,068 |
| 5 | February 16, 2018 22:45 | February 17, 2018 01:30 | 2h 45m | 1,241 | 1,550 |
| 6 | June 28, 2018 03:30 | June 28, 2018 07:30 | 4h | 730 | 2,190 |
| 7 | March 5, 2018 12:00 | March 5, 2018 22:45 | 10h 45m | 544 | 1,212 |
| 8 | March 4, 2018 08:30 | March 4, 2018 13:45 | 5h 15m | 471 | 557 |
| 9 | January 1, 2018 03:00 | January 1, 2018 04:30 | 1h 30m | 462 | 484 |
| 10 | September 24, 2018 15:30 | September 24, 2018 22:45 | 7h 15m | 383 | 1,502 |
Outage episodes by size in 2018: 45 reached 100+ customers, 5 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 2018, 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 51% of North Dakota's customers in 2018; 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, 2018, 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/2018/north-dakota/cass-county