Power Outages in Pennington County, SD
Black Hills Electric Coop, Inc, Black Hills Energy, Black Hills Power, Inc. and West River Electric Assn Inc publish only a system-wide total, not county figures. There is no live feed for WAPA-- Western Area Power Administration. In 2025, the average customer here lost power for about 13.0 hours.
Pennington County, SD is served by 5 tracked utilities.
Cite this data
- URL
- https://massoutage.com/south-dakota/pennington-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Pennington County, SD". https://massoutage.com/south-dakota/pennington-county
Black Hills Electric Coop, Inc, Black Hills Energy, Black Hills Power, Inc. and West River Electric Assn Inc publish no county-level figures.
No live feed for WAPA-- Western Area Power Administration: outages in itsservice area won't show here.
0.0%of this county's ~93,424 customers are served by utilities with a county-level live feed.
We can't see outages for: WAPA-- Western Area Power Administration. Their customers are not in any number on this page; check their own outage maps.
System-wide total only, no county split: Black Hills Electric Coop, Inc, Black Hills Energy, Black Hills Power, Inc., West River Electric Assn Inc.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Black Hills Electric Coop, Inc | Live · total only | not by county | - | - | - | - | - | - |
| Black Hills Energy | Live · total only | not by county | - | - | - | - | - | - |
| Black Hills Power, Inc. | Live · total only | not by county | - | - | - | - | - | - |
| West River Electric Assn Inc | Live · total only | not by county | - | - | - | - | - | - |
| WAPA-- Western Area Power Administration | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Pennington Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.
By ZIP code (7)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 57702 | 474 | ≤11 | 397 | ≤11 |
| 57703 | 256 | ≤11 | 230 | ≤11 |
| 57745 | 61 | ≤11 | 51 | 0 |
| 57751 | 18 | 0 | 16 | 0 |
| 57790 | 14 | 0 | 13 | 0 |
| 57775 | ≤11 | 0 | 0 | 0 |
| 57725 | ≤11 | 0 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Pennington County or any town and utility in it.
No active NWS alerts for Pennington County right now.
Pennington County has been under 10 National Weather Service alerts recently, most recently a Freeze Warning on October 16, 2026.
- Freeze Warning ×3
- Special Weather Statement ×3
- Wind Advisory ×2
- Fire Weather Watch ×1
- Red Flag Warning ×1
Hardest-hit cities in Pennington County
Where this event is concentrated across the county's towns and townships.
- Rapid Cityno outage reported
Historical reliability
In 2025, the average customer in Pennington County went about 13.0 hours without power. Peak simultaneous outage on record reached 41,253 customers.
The US EIA reports South Dakota utilities averaged 4.7 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 13.0 hrs.
Worst year here was 2025 (peak 41,253 customers out) · decade average 2.6 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 1 | 15 | 0.0 |
| 2016 | 170 | 22,078 | 0.6 |
| 2017 | 168 | 1,661 | 0.3 |
| 2018 | 329 | 4,963 | 1.5 |
| 2019 | 280 | 7,770 | 2.2 |
| 2020 | 309 | 5,384 | 2.6 |
| 2021 | 359 | 3,084 | 3.8 |
| 2022 | 352 | 2,445 | 1.9 |
| 2023 | 241 | 2,491 | 1.8 |
| 2024 | 316 | 4,330 | 1.3 |
| 2025 | 397 | 41,253 | 13.0 |
Cost of power in Pennington County
ENERGY & AI DEMAND →Estimated residential electricity price for Pennington County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.
- Black Hills Power, Inc.15.1¢67,608 cust
- West River Electric Assn Inc15.2¢18,975 cust
- Black Hills Electric Coop, Inc14.8¢9,415 cust
Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.
Relatively High ice storms exposure · 2.6 hrs/yr of outages over the last decade.
Power outages in Pennington County: FAQ
- How often does Pennington County, SD lose power?
- Based on EAGLE-I records, Pennington County, SD logged 397 distinct outage events in 2025, averaging about 13.0 hours without power per customer over the year.
- What was the worst power outage in Pennington County, SD?
- The largest tracked outage peaked at 41,253 customers without power, beginning November 13, 2025 and lasting about 13h 45m.
- Is there a power outage in Pennington County, SD right now?
- No major outage is currently reported for Pennington County, SD. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Pennington County, SD?
- Tracked electric providers include Black Hills Electric Coop, Inc, Black Hills Energy, Black Hills Power, Inc., West River Electric Assn Inc.
Rapid City. Outage counts for these communities are reported at the Pennington County level shown above.
Outages are tracked at the county level; these ZIP codes fall within Pennington County.
57701, 57702, 57703, 57725, 57745, 57751, 57775, 57780, 57790
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Black Hills Power, Inc. | 8.8 hrs | Live · total only | - |
| West River Electric Assn Inc | 0.4 hrs | Live · total only | - |
| Black Hills Electric Coop, Inc | 41.4 hrs | Live · total only | - |
| WAPA-- Western Area Power Administration | - | No live feed | - |
| Black Hills Energy | - | Live · total only | - |
Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of South Dakota customers). Machine-readable data: /api/v1/counties/46103 and /api/v1/counties/46103/history.