County annual report · FIPS 46089
2017 McPherson County, SD Power Outage Report
In 2017, customers in McPherson County, SD went without power for an average of 2.2 hours, a total of 2,663 customer-hours (South Dakota average 0.8 hours). That ranks 4th worst of 26 South Dakota counties and 1579th of 2,786 nationally.
Compared with SD, the US
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in McPherson County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 26, 2017 10:45 | May 26, 2017 11:15 | 30m | 656 | 328 |
| 2 | June 4, 2017 15:00 | June 4, 2017 15:15 | 15m | 633 | 158 |
| 3 | June 1, 2017 09:30 | June 1, 2017 09:45 | 15m | 28 | 7 |
| 4 | August 9, 2017 05:45 | August 9, 2017 06:00 | 15m | 26 | 7 |
| 5 | July 19, 2017 14:30 | July 19, 2017 14:45 | 15m | 9 | 2 |
| 6 | July 23, 2017 21:30 | July 23, 2017 22:45 | 1h 15m | 7 | 9 |
| 7 | July 7, 2017 11:30 | July 15, 2017 19:00 | 8d 7h | 4 | 399 |
| 8 | August 21, 2017 07:30 | August 21, 2017 07:45 | 15m | 4 | 1 |
| 9 | April 18, 2017 16:15 | April 22, 2017 11:15 | 3d 19h | 3 | 272 |
| 10 | April 22, 2017 18:00 | April 24, 2017 07:30 | 1d 13h | 3 | 112 |
Outage episodes by size in 2017: 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 McPherson County reported on EIA Form 861 for 2017, 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 Electric Coop, Inc | 2017 | 2.4 hrs | 1.38 | 2.4 hrs | 1.38 |
| FEM Electric Assn, Inc | 2017 | 2.8 hrs | 1.75 | 2.8 hrs | 1.75 |
| Montana-Dakota Utilities Co | - | - | - | - | - |
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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,223 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. McPherson County has data for 2017, 2019–2025.
Cite this report
MassOutage (massoutage.com), McPherson County, SD annual power outage report, 2017, 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/2017/south-dakota/mcpherson-county