County annual report · FIPS 46097
2018 Miner County, SD Power Outage Report
In 2018, customers in Miner County, SD went without power for an average of 0.3 hours, a total of 294 customer-hours (South Dakota average 1.1 hours). That ranks 18th worst of 30 South Dakota counties and 2598th of 2,798 nationally.
Compared with SD, the US and 2017
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Miner 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 | August 14, 2018 17:30 | August 14, 2018 18:30 | 1h | 77 | 58 |
| 2 | August 20, 2018 21:30 | August 20, 2018 23:30 | 2h | 44 | 67 |
| 3 | October 3, 2018 22:45 | October 4, 2018 00:15 | 1h 30m | 14 | 21 |
| 4 | July 26, 2018 19:30 | July 27, 2018 08:45 | 13h 15m | 5 | 64 |
| 5 | September 28, 2018 11:45 | September 28, 2018 22:45 | 11h | 5 | 45 |
| 6 | January 1, 2018 20:15 | January 2, 2018 02:45 | 6h 30m | 2 | 13 |
| 7 | May 29, 2018 11:15 | May 29, 2018 16:30 | 5h 15m | 2 | 6 |
| 8 | May 7, 2018 12:15 | May 7, 2018 14:15 | 2h | 1 | 2 |
| 9 | June 19, 2018 20:15 | June 19, 2018 22:45 | 2h 30m | 1 | 3 |
| 10 | August 3, 2018 17:15 | August 3, 2018 19:00 | 1h 45m | 1 | 2 |
Outage episodes by size in 2018: 0 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 Miner 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 |
|---|---|---|---|---|---|
| Northern States Power Co - Minnesota | 2018 | 90 min | 0.73 | 69 min | 0.62 |
| Sioux Valley SW Elec Coop | 2018 | 4.0 hrs | 3.62 | 2.0 hrs | 2.88 |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| Dakota Energy Coop Inc | - | - | - | - | - |
| Central Electric Coop, Inc - (SD) | - | - | - | - | - |
| City of Howard - (SD) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 46% of South Dakota's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,069 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. Miner County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Miner County, SD 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/south-dakota/miner-county