Grant County, SD Power Outages
Utilities serving Grant County, South Dakota don't yet share live outage data with DOE's ODIN feed. Check your electric company's outage map (listed below) for real-time status.
Grant County on the South Dakota outage map
- Normal
- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Grant County power outage history
Every significant outage recorded in Grant County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 42 significant power outages in Grant County, meaning events that left at least 1% of customers in the dark. The largest (Apr 7, 2025) left 1,916 customers (61.3% of the county) without power. NOAA recorded no major storm in the area at the time.
From 2018 to 2025, the average customer here lost about 18 hr 32 min of power per year, more than the South Dakota average of 3 hr 46 min. That ranks 4th of 65 South Dakota counties for outage time, where 1st has the most.
May is the riskiest month: it accounted for 60% of all customer outage time from 2018 to 2025. On 41 days in that period, at least 5% of customers were out at the same time. Outage time in Grant County has fallen recently: about 12 hr 53 min per customer per year in 2022–2025, versus 26 hr 4 min in 2018–2021.
The most recent significant outage on record (Nov 2, 2025) affected 59 customers (1.9%) amid high winds.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Apr 7, 2025 | 1,916(61.3%) | 1 | No major storm reported |
| 2 | Aug 12, 2025 | 1,910(61.1%) | 1 | Severe thunderstorms |
| 3 | Jan 17, 2025 | 1,821(58.3%) | 1 | High winds |
| 4 | Aug 21, 2024 | 1,674(53.6%) | 1 | Severe thunderstorms |
| 5 | Jul 19–21, 2022 | 1,495(47.9%) | 3 | High winds |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in Grant County?
Electric companies with service territory in Grant County (EIA-861, 2025)
| Utility | Type | Customers (SD) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Otter Tail Power | Investor Owned | 12,464 | Not reporting | |
| Montana-Dakota Utilities | Investor Owned | 9,554 | Not reporting | |
| H-D Electric Coop Inc | Cooperative | 3,873 | Not reporting | |
| Whetstone Valley Elec Coop Inc | Cooperative | 3,698 | Not reporting | |
| Codington-Clark Elec Coop, Inc | Cooperative | 3,494 | Not reporting | |
| City of Big Stone City - (SD) | Municipal | 401 | Not reporting | |
| WAPA-- Western Area Power Administration | Federal | 25 | Not reporting |
Customer counts are each utility's statewide total in South Dakota. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Grant County outage headlines in the past week.
Grant County power outage FAQ
Is the power out in Grant County right now?
No outages are currently reported for Grant County by participating utilities. Live coverage is limited here, so If your power is out, report it to your electric company.
Which electric company serves Grant County?
According to EIA-861 service territory data, Otter Tail Power Co, Montana-Dakota Utilities Co, H-D Electric Coop Inc, Whetstone Valley Elec Coop Inc and 3 others provide electric service in Grant County, South Dakota.
What was the worst power outage in Grant County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Apr 7, 2025. It peaked at 1,916 customers without power (61.3% of the county). NOAA storm reports for that period point to no major storm reported.
How often does the power go out in Grant County?
EAGLE-I has recorded 42 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 18 hr 32 min of power per year, and on 41 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Grant County, SD Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/south-dakota/grant-county