County annual report · FIPS 46089
2019 McPherson County, SD Power Outage Report
In 2019, customers in McPherson County, SD went without power for an average of 0.3 hours, a total of 363 customer-hours (South Dakota average 3.8 hours). That ranks 40th worst of 58 South Dakota counties and 2745th of 2,945 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 McPherson County, 2019
The 6 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 25, 2019 17:00 | November 25, 2019 19:00 | 2h | 290 | 231 |
| 2 | May 1, 2019 22:00 | May 1, 2019 23:00 | 1h | 33 | 33 |
| 3 | April 18, 2019 15:15 | April 18, 2019 19:00 | 3h 45m | 11 | 41 |
| 4 | October 15, 2019 16:30 | October 15, 2019 21:45 | 5h 15m | 7 | 35 |
| 5 | August 15, 2019 05:15 | August 15, 2019 05:30 | 15m | 6 | 2 |
| 6 | June 26, 2019 23:30 | June 27, 2019 03:45 | 4h 15m | 5 | 21 |
Outage episodes by size in 2019: 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 McPherson County reported on EIA Form 861 for 2019, 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 | 2018 | 3.3 hrs | 1.45 | 70 min | 1.25 |
| FEM Electric Assn, Inc | 2018 | 3.8 hrs | 2.21 | 3.8 hrs | 2.21 |
| 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 87% of South Dakota's customers in 2019; 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, 2019, 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/2019/south-dakota/mcpherson-county