County annual report · FIPS 27111
2021 Otter Tail County, MN Power Outage Report
In 2021, customers in Otter Tail County, MN went without power for an average of 2.9 hours, a total of 126K customer-hours (Minnesota average 2.1 hours). That ranks 14th worst of 79 Minnesota counties and 1891st of 2,974 nationally.
Compared with MN, the US and 2020
Coverage line is EAGLE-I's share of Minnesota customers tracked each year.
Biggest outages in Otter Tail County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 10, 2021 23:00 | October 11, 2021 02:30 | 3h 30m | 4,011 | 3,478 |
| 2 | July 24, 2021 06:30 | July 25, 2021 04:00 | 21h 30m | 2,454 | 11K |
| 3 | October 10, 2021 01:45 | October 10, 2021 11:00 | 9h 15m | 2,357 | 7,391 |
| 4 | September 1, 2021 12:45 | September 1, 2021 14:45 | 2h | 1,621 | 407 |
| 5 | October 5, 2021 13:00 | October 5, 2021 19:30 | 6h 30m | 1,410 | 7,405 |
| 6 | June 8, 2021 04:45 | June 9, 2021 04:45 | 1d | 1,219 | 7,204 |
| 7 | August 26, 2021 14:45 | August 27, 2021 01:15 | 10h 30m | 1,188 | 4,406 |
| 8 | October 14, 2021 11:45 | October 14, 2021 17:00 | 5h 15m | 1,145 | 2,627 |
| 9 | October 10, 2021 11:45 | October 10, 2021 18:00 | 6h 15m | 1,007 | 1,777 |
| 10 | October 12, 2021 14:15 | October 12, 2021 19:15 | 5h | 861 | 2,374 |
Outage episodes by size in 2021: 89 reached 100+ customers, 9 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 Otter Tail 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 |
| ALLETE, Inc. | 2021 | 2.5 hrs | 1.45 | 2.1 hrs | 1.34 |
| Lake Region Electric Cooperative - (MN) | 2021 | 4.4 hrs | 1.83 | 2.3 hrs | 1.10 |
| Todd-Wadena Electric Coop | 2018 | 2.4 hrs | 0.70 | 2.4 hrs | 0.68 |
| Runestone Electric Assn | 2021 | 1.7 hrs | 0.85 | 62 min | 0.70 |
| City of Wadena - (MN) | 2018 | 2 min | 0.07 | - | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Henning - (MN) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 80% of Minnesota's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 43,936 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. Otter Tail County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Otter Tail County, MN 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/minnesota/otter-tail-county