Power Outages in Calhoun County, SC
Dominion Energy South Carolina, Inc publishes only a system-wide total, not county figures. There is no live feed for Aiken Electric Coop Inc and Tri-County Electric Coop, Inc (SC). In 2025, the average customer here lost power for about 5.6 hours.
Calhoun County, SC is served by 3 tracked utilities.
Cite this data
- URL
- https://massoutage.com/south-carolina/calhoun-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Calhoun County, SC". https://massoutage.com/south-carolina/calhoun-county
Dominion Energy South Carolina, Inc publishes no county-level figures.
No live feed for Aiken Electric Coop Inc and Tri-County Electric Coop, Inc (SC): outages in theirservice area won't show here.
0.0%of this county's ~12,654 customers are served by utilities with a county-level live feed.
We can't see outages for: Aiken Electric Coop Inc, Tri-County Electric Coop, Inc (SC). Their customers are not in any number on this page; check their own outage maps.
System-wide total only, no county split: Dominion Energy South Carolina, Inc.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Dominion Energy South Carolina, Inc | Live · total only | not by county | - | - | - | - | - | - |
| Aiken Electric Coop Inc | No live feed | can't see | - | - | - | - | - | - |
| Tri-County Electric Coop, Inc (SC) | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Calhoun 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 (3)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 29135 | 98 | ≤11 | 59 | ≤11 |
| 29047 | 46 | ≤11 | 32 | ≤11 |
| 29030 | 13 | ≤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 Calhoun County or any town and utility in it.
- Lake Wind AdvisoryMODERATE
Calhoun County has been under 23 National Weather Service alerts recently, most recently a Lake Wind Advisory on October 17, 2026.
- Flood Warning ×11
- Lake Wind Advisory ×7
- Special Weather Statement ×3
- Dense Fog Advisory ×2
Hardest-hit cities in Calhoun County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Calhoun County went about 5.6 hours without power. Peak simultaneous outage on record reached 9,147 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 5.6 hrs.
Worst year here was 2024 (peak 5,126 customers out) · decade average 4.9 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 158 | 1,170 | 0.2 |
| 2016 | 108 | 2,719 | 13.2 |
| 2017 | 277 | 1,954 | 0.9 |
| 2018 | 451 | 2,264 | 4.0 |
| 2019 | 435 | 2,081 | 3.6 |
| 2020 | 405 | 2,049 | 3.3 |
| 2021 | 380 | 3,782 | 2.2 |
| 2022 | 368 | 2,011 | 3.9 |
| 2023 | 612 | 1,348 | 2.9 |
| 2024 | 482 | 5,126 | 13.9 |
| 2025 | 687 | 9,147 | 5.6 |
Cost of power in Calhoun County
ENERGY & AI DEMAND →Estimated residential electricity price for Calhoun 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.
- Dominion Energy South Carolina, Inc16.4¢712,679 cust
- Aiken Electric Coop Inc17.5¢50,850 cust
- Tri-County Electric Coop, Inc (SC)19.9¢17,670 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 Low hurricanes exposure · 4.9 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability relatively high: outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Calhoun County: FAQ
- How often does Calhoun County, SC lose power?
- Based on EAGLE-I records, Calhoun County, SC logged 687 distinct outage events in 2025, averaging about 5.6 hours without power per customer over the year.
- What was the worst power outage in Calhoun County, SC?
- The largest tracked outage peaked at 9,147 customers without power, beginning June 26, 2025 and lasting about 10h 15m.
- Is there a power outage in Calhoun County, SC right now?
- No major outage is currently reported for Calhoun County, SC. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Calhoun County, SC?
- Tracked electric providers include Dominion Energy South Carolina, Inc.
Outages are tracked at the county level; these ZIP codes fall within Calhoun County.
29030, 29135
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Dominion Energy South Carolina, Inc | 2.2 hrs | Live · total only | |
| Aiken Electric Coop Inc | 3.2 hrs | No live feed | - |
| Tri-County Electric Coop, Inc (SC) | 4.4 hrs | 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/45017 and /api/v1/counties/45017/history.