County annual report · FIPS 27011
2021 Big Stone County, MN Power Outage Report
In 2021, customers in Big Stone County, MN went without power for an average of 1.4 hours, a total of 2,459 customer-hours (Minnesota average 2.1 hours). That ranks 37th worst of 79 Minnesota counties and 2508th 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 Big Stone County, 2021
The 6 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 15, 2021 12:15 | January 15, 2021 17:30 | 5h 15m | 387 | 1,436 |
| 2 | February 28, 2021 14:45 | February 28, 2021 15:00 | 15m | 183 | 46 |
| 3 | September 30, 2021 07:00 | September 30, 2021 08:45 | 1h 45m | 81 | 142 |
| 4 | January 15, 2021 18:45 | January 15, 2021 21:00 | 2h 15m | 66 | 149 |
| 5 | March 24, 2021 00:45 | March 24, 2021 17:15 | 16h 30m | 55 | 687 |
| 6 | July 28, 2021 22:45 | July 28, 2021 23:15 | 30m | 1 | 1 |
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 Big Stone 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 |
| Agralite Electric Coop | 2021 | 2.2 hrs | 1.62 | 2.0 hrs | 1.53 |
| Traverse Electric Coop, Inc | - | - | - | - | - |
| City of Ortonville - (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 ÷ 1,766 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. Big Stone County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Big Stone 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/big-stone-county