Cost of solar in Charleston, SC

Electricity Consumption in Charleston

Electricity Consumption by South Carolina residents averages 1199 kWh per month. It ranks #10 in the nation for savings from installing solar panels on the home.

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Solar power in Charleston, South Carolina

Charleston is very lucky with its solar incentives with tax credits and rebates as well as net metering for when you aren't using all of your solar. With state and federal level tax credits in most cases about 50% off all upfront costs of the system are covered. After the system is installed you'll be entitled to net metering.This agreement with your utility gives you full retail value for excess power exported to the grid, where this incentive draws the most importance is in the middle of the day when solar is producing the most power and most people are out of the house. With many state lawmakers believing this is too generous these incentives may be take away soon and it's essential that home and business owners interested in solar install soon.

Even if you are not convinced about solar we recommend that at the very least you use the solar panel calculator for Charleston to find out:

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Solar power in South Carolina

The average cost of installing residential solar panels in Charleston, South Carolina in 2020 is $2.78 per watt. The average system size in the US is 6 kilowatts, which means the average price of a solar system in Charleston, SC is $13,900. (before claiming 26% tax credit and other rebates)

What does the cost of a real solar system look like?

Facts about installing a 13.09kW solar system in Charleston, SC

This system would offset 100% of your energy usage if your typical monthly bill is $240, however your situation may vary so try our Charleston solar calculator to get a result tailored to you.


Net cost of system
Cash - after 26% solar tax credit

6 Years 10 Months

Average payback time


Annual power production


levilized cost of solar energy


If you don't get solar
The forecast average utility price over the next 25 years

Cash flow graph based on cash purchase of this 13.09kW system

Life-time savings on this system over the next 25 years


(Prices shown after repayments of capital)



Solar companies in Charleston, SC that provide pricing through the Solar-Estimate marketplace



Solar calculator and quote comparison tool

Average total cost of solar panel installation in South Carolina

System Size Cash purchase
After 26% solar tax credit
Financed purchase
After 26% solar tax credit
3kw $6,460 $6,977
4kw $8,495 $9,175
5kw $10,434 $11,269
6kw $12,343 $13,331
7kw $14,141 $15,273
8kw $15,925 $17,199
9kw $17,582 $18,989
10kw $19,240 $20,779


Going solar in South Carolina

Check out all of the ways energy providers of South Carolina can help you be more energy efficient and save money.

The following programs are available:
Incentive Name Eligibility Type
Residential Renewable Energy Tax Credit Federal Personal Tax Credit
Solar Energy State Tax Credit State Personal Tax Credit
Net Metering State Net Metering

Please keep in mind that the best source of up-to-date information on incentives are the solar installers who specialize in your area.