County annual report · FIPS 46043
2025 Douglas County, SD Power Outage Report
In 2025, customers in Douglas County, SD went without power for an average of 1.0 hours, a total of 1,774 customer-hours (South Dakota average 6.5 hours). That ranks 55th worst of 65 South Dakota counties and 2752nd of 3,000 nationally.
Compared with SD, the US and 2024
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Douglas County, 2025
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 30, 2025 01:30 | July 30, 2025 04:45 | 3h 15m | 142 | 462 |
| 2 | January 31, 2025 19:45 | January 31, 2025 23:00 | 3h 15m | 35 | 114 |
| 3 | April 14, 2025 17:00 | April 14, 2025 21:15 | 4h 15m | 21 | 66 |
| 4 | February 27, 2025 19:30 | February 27, 2025 22:45 | 3h 15m | 20 | 33 |
| 5 | March 31, 2025 15:15 | March 31, 2025 21:30 | 6h 15m | 20 | 41 |
| 6 | June 30, 2025 15:45 | June 30, 2025 22:00 | 6h 15m | 20 | 64 |
| 7 | July 16, 2025 13:45 | July 16, 2025 17:30 | 3h 45m | 20 | 55 |
| 8 | July 9, 2025 18:00 | July 9, 2025 20:15 | 2h 15m | 18 | 38 |
| 9 | December 4, 2025 03:15 | December 4, 2025 05:45 | 2h 30m | 18 | 45 |
| 10 | January 15, 2025 19:30 | January 15, 2025 22:45 | 3h 15m | 16 | 25 |
Outage episodes by size in 2025: 1 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 Douglas County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| NorthWestern Energy - (SD) | 2024 | 76 min | 0.70 | 66 min | 0.65 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| Douglas Electric Coop, Inc | - | - | - | - | - |
| Charles Mix Electric Assn, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of South Dakota's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,745 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. Douglas County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Douglas County, SD annual power outage report, 2025, 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/2025/south-dakota/douglas-county