County annual report · FIPS 38063
2021 Nelson County, ND Power Outage Report
In 2021, customers in Nelson County, ND went without power for an average of 0.3 hours, a total of 410 customer-hours (North Dakota average 1.0 hours). That ranks 33rd worst of 51 North Dakota counties and 2848th of 2,974 nationally.
Compared with ND, the US and 2020
Coverage line is EAGLE-I's share of North Dakota customers tracked each year.
Biggest outages in Nelson County, 2021
The 4 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 24, 2021 01:45 | March 24, 2021 02:30 | 45m | 533 | 352 |
| 2 | January 6, 2021 20:15 | January 6, 2021 20:30 | 15m | 131 | 33 |
| 3 | April 23, 2021 15:30 | April 23, 2021 15:45 | 15m | 95 | 24 |
| 4 | April 21, 2021 18:30 | April 21, 2021 20:00 | 1h 30m | 1 | 2 |
Outage episodes by size in 2021: 2 reached 100+ customers, 0 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 Nelson County reported on EIA Form 861 for 2021, 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 | 2021 | 86 min | 1.13 | 74 min | 1.09 |
| Nodak Electric Coop Inc | 2021 | 3.4 hrs | 1.38 | 3.4 hrs | 1.38 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Lakota - (ND) | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,239 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. Nelson County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Nelson County, ND annual power outage report, 2021, 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/2021/north-dakota/nelson-county