Power Outages in Williamsburg County, SC
Duke Energy Progress - (NC) has not reported outages here, but it only publishesactive outages, so that isn't a confirmed all-clear. Santee Electric Coop, Inc publishes only a system-wide total, not county figures. There is no live feed for Duke Energy. In 2025, the average customer here lost power for about 3.5 hours.
Williamsburg County, SC is served by 3 tracked utilities.
Cite this data
- URL
- https://massoutage.com/south-carolina/williamsburg-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Williamsburg County, SC". https://massoutage.com/south-carolina/williamsburg-county
Duke Energy Progress - (NC) only appearsin feeds while reporting outages, so no report isn't a confirmed all-clear.
Santee Electric Coop, Inc publishes no county-level figures.
No live feed for Duke Energy: outages in itsservice area won't show here.
0.0%of this county's ~35,103 customers are served by utilities with a county-level live feed.
We can't see outages for: Duke Energy. Their customers are not in any number on this page; check their own outage maps.
Only visible while reporting outages: Duke Energy Progress - (NC). Zero here is not a confirmed all-clear.
System-wide total only, no county split: Santee Electric Coop, Inc.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Duke Energy Progress - (NC) | Outages only | none reported | - | - | - | - | - | - |
| Santee Electric Coop, Inc | Live · total only | not by county | - | - | - | - | - | - |
| Duke Energy | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Williamsburg 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 (8)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 29556 | 170 | ≤11 | 126 | ≤11 |
| 29554 | 147 | ≤11 | 95 | ≤11 |
| 29510 | 135 | ≤11 | 111 | 0 |
| 29590 | 25 | 0 | 20 | 0 |
| 29056 | 19 | 0 | 15 | 0 |
| 29580 | 16 | ≤11 | 12 | 0 |
| 29564 | 15 | 0 | ≤11 | ≤11 |
| 29518 | ≤11 | ≤11 | ≤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 Williamsburg County or any town and utility in it.
No active NWS alerts for Williamsburg County right now.
Williamsburg County has been under 4 National Weather Service alerts recently, most recently a Special Weather Statement on October 11, 2026.
- Dense Fog Advisory ×2
- Special Weather Statement ×2
Latest Williamsburg County, SC outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 35m
- OUTAGE BEGAN
Outage began: 352 customers out (1.6% of the county)
- RESOLVED
Power restored after 55m
- GREW
Outage grew to 697 customers out (3.2% of the county)
- IMPROVING
Improving: down to 376 customers out
- GREW
Outage grew to 661 customers out (3.1% of the county)
- OUTAGE BEGAN
Outage began: 373 customers out (1.7% of the county)
Hardest-hit cities in Williamsburg County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Williamsburg County went about 3.5 hours without power. Peak simultaneous outage on record reached 7,036 customers.
The US EIA reports South Carolina utilities averaged 2.5 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 3.5 hrs.
Worst year here was 2016 (peak 6,579 customers out) · decade average 6.4 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 355 | 4,203 | 2.0 |
| 2016 | 353 | 6,579 | 27.7 |
| 2017 | 588 | 5,092 | 3.8 |
| 2018 | 786 | 4,505 | 4.0 |
| 2019 | 659 | 3,456 | 5.5 |
| 2020 | 656 | 1,881 | 2.1 |
| 2021 | 733 | 2,732 | 2.3 |
| 2022 | 701 | 7,036 | 8.6 |
| 2023 | 717 | 5,856 | 3.5 |
| 2024 | 568 | 6,613 | 7.5 |
| 2025 | 780 | 5,067 | 3.5 |
Cost of power in Williamsburg County
ENERGY & AI DEMAND →Estimated residential electricity price for Williamsburg 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.
- Duke Energy Progress - (NC)14.1¢143,884 cust
- Santee Electric Coop, Inc16.4¢35,356 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 hurricanes exposure · 6.4 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability very high: outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Williamsburg County: FAQ
- How often does Williamsburg County, SC lose power?
- Based on EAGLE-I records, Williamsburg County, SC logged 780 distinct outage events in 2025, averaging about 3.5 hours without power per customer over the year.
- What was the worst power outage in Williamsburg County, SC?
- The largest tracked outage peaked at 7,036 customers without power, beginning September 30, 2022 and lasting about 2d 16h.
- Is there a power outage in Williamsburg County, SC right now?
- No major outage is currently reported for Williamsburg County, SC. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Williamsburg County, SC?
- Tracked electric providers include Duke Energy, Duke Energy Progress - (NC), Santee Electric Coop, Inc.
Outages are tracked at the county level; these ZIP codes fall within Williamsburg County.
29056, 29510, 29518, 29556, 29564, 29580, 29590
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Duke Energy Progress - (NC) | 2.9 hrs | Outages only | - |
| Santee Electric Coop, Inc | 3.5 hrs | Live · total only | - |
| Duke Energy | - | No live feed | - |
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 Carolina customers). Machine-readable data: /api/v1/counties/45089 and /api/v1/counties/45089/history.