County annual report · FIPS 46089
2023 McPherson County, SD Power Outage Report
In 2023, customers in McPherson County, SD went without power for an average of 1.1 hours, a total of 1,397 customer-hours (South Dakota average 2.3 hours). That ranks 44th worst of 61 South Dakota counties and 2620th of 2,977 nationally.
Compared with SD, the US and 2022
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in McPherson County, 2023
The 9 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 12, 2023 22:15 | October 12, 2023 22:30 | 15m | 299 | 75 |
| 2 | December 26, 2023 08:00 | December 26, 2023 10:15 | 2h 15m | 272 | 606 |
| 3 | December 26, 2023 18:45 | December 26, 2023 22:30 | 3h 45m | 268 | 346 |
| 4 | September 5, 2023 08:15 | September 5, 2023 12:15 | 4h | 264 | 319 |
| 5 | July 8, 2023 08:45 | July 8, 2023 09:15 | 30m | 13 | 5 |
| 6 | October 18, 2023 03:45 | October 18, 2023 05:15 | 1h 30m | 9 | 14 |
| 7 | August 16, 2023 17:45 | August 16, 2023 19:15 | 1h 30m | 7 | 11 |
| 8 | July 2, 2023 22:30 | July 3, 2023 02:00 | 3h 30m | 5 | 18 |
| 9 | October 22, 2023 22:30 | October 22, 2023 23:30 | 1h | 5 | 5 |
Outage episodes by size in 2023: 4 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 2023, 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 | 2023 | 74 min | 0.67 | 54 min | 0.55 |
| 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 n/a of South Dakota's customers in 2023; 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, 2023, 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/2023/south-dakota/mcpherson-county