County annual report · FIPS 46101
2021 Moody County, SD Power Outage Report
In 2021, customers in Moody County, SD went without power for an average of 3.0 hours, a total of 11K customer-hours (South Dakota average 3.4 hours). That ranks 29th worst of 61 South Dakota counties and 1832nd of 2,974 nationally.
Compared with SD, the US and 2020
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Moody 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 | July 1, 2021 18:15 | July 1, 2021 20:45 | 2h 30m | 234 | 527 |
| 2 | June 1, 2021 05:00 | June 1, 2021 06:30 | 1h 30m | 167 | 251 |
| 3 | June 28, 2021 11:15 | June 28, 2021 12:30 | 1h 15m | 167 | 209 |
| 4 | July 21, 2021 21:00 | July 22, 2021 13:00 | 16h | 167 | 2,672 |
| 5 | June 17, 2021 15:15 | June 17, 2021 17:45 | 2h 30m | 114 | 126 |
| 6 | June 17, 2021 19:15 | June 17, 2021 20:30 | 1h 15m | 113 | 141 |
| 7 | October 4, 2021 13:15 | October 4, 2021 17:30 | 4h 15m | 108 | 119 |
| 8 | October 5, 2021 13:15 | October 5, 2021 16:30 | 3h 15m | 108 | 179 |
| 9 | June 3, 2021 21:15 | June 7, 2021 13:15 | 3d 16h | 104 | 799 |
| 10 | January 12, 2021 14:15 | January 12, 2021 17:15 | 3h | 94 | 190 |
Outage episodes by size in 2021: 9 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 Moody 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 |
| Northern States Power Co - Minnesota | 2021 | 1.8 hrs | 0.82 | 77 min | 0.74 |
| Sioux Valley SW Elec Coop | 2021 | 1.8 hrs | 1.08 | 1.5 hrs | 0.93 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Colman - (SD) | - | - | - | - | - |
| City of Flandreau | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 79% of South Dakota's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,517 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. Moody County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Moody County, SD 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/south-dakota/moody-county