County annual report · FIPS 27111
2018 Otter Tail County, MN Power Outage Report
In 2018, customers in Otter Tail County, MN went without power for an average of 2.2 hours, a total of 98K customer-hours (Minnesota average 2.0 hours). That ranks 20th worst of 69 Minnesota counties and 1758th of 2,798 nationally.
Compared with MN, the US and 2017
Coverage line is EAGLE-I's share of Minnesota customers tracked each year.
Biggest outages in Otter Tail 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 | June 6, 2018 07:00 | June 6, 2018 19:30 | 12h 30m | 4,189 | 5,967 |
| 2 | March 5, 2018 11:15 | March 5, 2018 22:00 | 10h 45m | 3,709 | 7,447 |
| 3 | July 28, 2018 03:45 | July 28, 2018 04:45 | 1h | 2,872 | 1,397 |
| 4 | July 4, 2018 10:15 | July 4, 2018 18:30 | 8h 15m | 2,493 | 6,286 |
| 5 | January 5, 2018 01:00 | January 5, 2018 09:15 | 8h 15m | 2,452 | 7,610 |
| 6 | March 2, 2018 15:00 | March 2, 2018 16:15 | 1h 15m | 2,368 | 1,822 |
| 7 | July 23, 2018 04:15 | July 23, 2018 04:45 | 30m | 2,087 | 747 |
| 8 | August 27, 2018 19:15 | August 27, 2018 19:30 | 15m | 1,977 | 494 |
| 9 | March 9, 2018 14:15 | March 9, 2018 15:15 | 1h | 1,970 | 1,594 |
| 10 | March 14, 2018 12:45 | March 14, 2018 13:00 | 15m | 1,970 | 493 |
Outage episodes by size in 2018: 88 reached 100+ customers, 15 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 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 |
| ALLETE, Inc. | 2018 | 2.6 hrs | 1.49 | 2.2 hrs | 1.39 |
| Lake Region Electric Cooperative - (MN) | 2018 | 3.9 hrs | 2.95 | 2.2 hrs | 1.26 |
| Todd-Wadena Electric Coop | 2018 | 2.4 hrs | 0.70 | 2.4 hrs | 0.68 |
| Runestone Electric Assn | 2018 | 1.6 hrs | 1.41 | 1.6 hrs | 1.38 |
| 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 71% of Minnesota's customers in 2018; 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, 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/minnesota/otter-tail-county