Electricity Rates in Columbia, SC
Dominion Energy South Carolina, Inc residential rate
14.59¢/kWh
5.3% below the South Carolina average of 15.41¢
Source: EIA, 2024 annual data · Dominion Energy South Carolina, Inc serves 696385 residential customers
What Does Electricity Cost in Columbia?
If you're a Dominion Energy South Carolina, Inc customer in Columbia, you pay an average of 14.59 cents per kilowatt-hour for residential electricity. That's lower than the South Carolina state average of 15.41 cents, so your appliances cost less to run than most people in your state.
Here's what that rate means in real dollars for common household appliances:
Monthly Appliance Costs at Columbia's Rate
| Appliance | Typical Use | Monthly Cost in Columbia |
|---|---|---|
| Space Heater | 8 hrs/day | $52.52 |
| Central Air Conditioner | 8 hrs/day | $122.56 |
| Refrigerator | 24 hrs/day | $18.91 |
| Dishwasher | 1 hrs/day | $7.88 |
| Electric Oven | 1 hrs/day | $10.94 |
| Clothes Washer | 1 hrs/day | $2.19 |
| Clothes Dryer | 1 hrs/day | $21.89 |
| 50-Inch LED TV | 5 hrs/day | $2.19 |
| LED Light Bulb | 6 hrs/day | $0.26 |
| Electric Water Heater | 3 hrs/day | $59.09 |
For a complete list of appliance costs at your rate, use the appliance cost calculator with South Carolina selected.
Columbia vs. South Carolina Average
South Carolina's average residential rate is 15.41 cents per kWh, but that average includes every utility in the state. Your actual cost depends on which utility serves your address.
| Columbia (Dominion Energy South Carolina, Inc) | South Carolina Average | |
|---|---|---|
| Rate per kWh | 14.59¢ | 15.41¢ |
| Est. monthly bill (886 kWh) | $129 | $137 |
| Est. annual cost | $1551 | $1638 |
Based on the national average household consumption of 886 kWh/month. Your actual bill depends on your home's size, insulation, appliances, and habits. Use the bill estimator to get a more personalized estimate.
Calculate Your Cost in Columbia
Tips for Lowering Your Bill in Columbia
No matter what rate you pay, the biggest savings come from the biggest consumers. Heating and cooling account for nearly half the average electric bill, so start there.
- Set your thermostat to 68F in winter and 78F in summer. Each degree of adjustment saves about 3-5% on heating/cooling costs.
- Check your HVAC filter monthly. A dirty filter makes the system work harder, costing you $5-$15/month in wasted electricity.
- If your water heater is set above 120F, lower it. Each 10-degree reduction saves 3-5% on water heating costs.
- Switch any remaining incandescent bulbs to LED. Each bulb saves about $7/year.
For more specific strategies, see our guide on how to lower your electric bill.
See the full rate picture for your state on the South Carolina electricity rates page.
Frequently Asked Questions
The average residential electricity rate in Columbia is 14.59 cents per kWh, based on Dominion Energy South Carolina, Inc's most recent annual data reported to the EIA. This rate reflects the average price including all charges (supply, delivery, and fees) divided by total kWh sold to residential customers.
Based on Columbia's rate of 14.59 cents/kWh and the national average consumption of 886 kWh/month, a typical electric bill in Columbia would be approximately $129/month or $1551/year. Your actual bill depends on your home's size, insulation quality, heating/cooling system, and appliance usage. Use the bill estimator to get a more accurate estimate based on your specific appliances.
The primary residential electricity provider in Columbia is Dominion Energy South Carolina, Inc, which serves approximately 696385 residential customers. Dominion Energy South Carolina, Inc is investor owned-owned. Some areas may have additional providers or co-ops; check your bill to confirm which utility serves your specific address.
Rate data from the U.S. Energy Information Administration (EIA), 2024 annual data. Rates reflect average residential prices and may differ from your specific rate plan. See our full disclaimer.