Solar Panels Cost $11k-$20k in Colleton County, SC | August, 2025
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How much do solar panels cost in Colleton County, SC in 2025?
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In Colleton County, SC in August, 2025, the current cost per watt of going solar is at $3.3/W
Stemming from this price per watt, you can come to the conclusion that for every 1 kW (1000 watts) of solar power capacounty will cost you $3,300 for installation. A 5 kW system in Colleton County will generally cost you $11,550 after the 30% federal tax credit is applied. Please consider, a 5kW system may not be sufficient to fully meet your energy demands.
To the left, you can choose your county to view the average roof size and the maximum capacity of solar panel systems for houses in your area. Find below a detailed overview of the {price|costs, payback period, and 20-year average savings for a 5 kW system in your county.
Average out-of-pocket cost for a 5 kW system The upfront amount spent to buy and install solar.
Colleton County: $11,550US Average: $12,523
Average Payback Period The number of years until you break even on the solar investment.
Colleton County: 6 yearsUS Average: 7 years
Average Net 20-year savings The total amount of money saved over 20 years minus the out-of-pocket cost.
Colleton County: $24,773US Average: $17,429
Solar Potential in Colleton County
Estimated system size and solar electricity production per median viable roof in Colleton County.
Roof size 822sq. ft.
Capacity 11.5kW DC
Electricity 14.5kkWh AC per yr.
Electricity Costs in Colleton County, SC & What that Means for Your Solar Panel Pricing
For Colleton County residents, the average monthly kWh usage is 1,081, with an average electric bill of 171.97. Smaller homes, including micro-apartments, are also included in the statistics noted in the previous sentence.
The rate of electricity in Colleton County, SC, averaging, is 15.91¢ per kWh for August 2025.
Putting in a a 9 kW solar system will cost around $29,700 upfront, but with the 30% federal tax credit, you can get a 30% credit, reducing the cost to $20,790.
Go Solar for less than your cell phone bill.
Average solar panel costs by system size in Colleton County
On the left, you will find a breakdown of prices for different solar panel system sizes installed in Colleton County. Even though a more extensive solar installation carries a greater cost, it also yields higher electricity savings and larger income tax credits.
The solar panel cost and benefit breakdown, visible in the calculator to the right and below, is based on an average electric bill of $171.97 in Colleton County. If you want more personalized results, just adjust the $171.97 to whatever your typical electricity bill is.
System Size
Roof Size Min. space required
Electricity Value Annual Production
Est. Price
System Size 5kW
Roof Size Min. space required
358 ft²
Electricity Value Annual Production $1,267 a year
Est. Price
$11,550
Savings from a 5kWthis system
Est. yearly production 7,920 kWh
Est. monthly savings $106
Full payback in 6 years
Environmental Impacts
Reduces CO2 emissions by 2.78 tons a year
Equivalent to planting 128 trees a year
Equivalent to driving 6,888 mi less a year
System Size 6kW
Roof Size Min. space required
429 ft²
Electricity Value Annual Production $1,521 a year
Est. Price
$13,860
Savings from a 6kWthis system
Est. yearly production 9,504 kWh
Est. monthly savings $127
Full payback in 7 years
Environmental Impacts
Reduces CO2 emissions by 3.34 tons a year
Equivalent to planting 153 trees a year
Equivalent to driving 8,266 mi less a year
System Size 7kW
Roof Size Min. space required
501 ft²
Electricity Value Annual Production $1,774 a year
Est. Price
$16,170
Savings from a 7kWthis system
Est. yearly production 11,088 kWh
Est. monthly savings $148
Full payback in 8 years
Environmental Impacts
Reduces CO2 emissions by 3.9 tons a year
Equivalent to planting 179 trees a year
Equivalent to driving 9,644 mi less a year
System Size 8kW
Roof Size Min. space required
572 ft²
Electricity Value Annual Production $2,028 a year
Est. Price
$18,480
Savings from a 8kWthis system
Est. yearly production 12,672 kWh
Est. monthly savings $169
Full payback in 9 years
Environmental Impacts
Reduces CO2 emissions by 4.45 tons a year
Equivalent to planting 205 trees a year
Equivalent to driving 11,022 mi less a year
System Size 9kW
Roof Size Min. space required
644 ft²
Electricity Value Annual Production $2,281 a year
Est. Price
$20,790
Savings from a 9kWthis system
Est. yearly production 14,256 kWh
Est. monthly savings $172
Full payback in 10 years
Environmental Impacts
Reduces CO2 emissions by 4.53 tons a year
Equivalent to planting 208 trees a year
Equivalent to driving 11,220 mi less a year
Colleton County Solar Panel Installation Incentives & Rebates | 2025
Rural entrepreneurs and farmers might find that the REAP Grant pays for 80% to 100% of their costs when installing solar energy or wind energy systems. Think you fit the criteria? Confirm your eligibility with our REAP Grant eligibility tool.
For those looking into residential solar, the 30% federal income tax credit is available to most people, making solar a practical option in various states. A multitude of state and local programs are in place to encourage the use of solar energy.
South Carolina residents have access to 10 solar rebate and incentive initiatives from multiple utilities and governmental organizations.
Solar incentives in SCIncentive Description Value
Solar Energy, Small Hydropower, and Geothermal Tax Credit (Corporate)
Value:Up to $3,500
South Carolina businesses are eligible for tax credits on the equipment and installation expenses of a new renewable energy system or energy-efficient building materials. Qualifying technologies include solar, hydroelectric, and geothermal as used to generate electricity or for heating/cooling. All system components are also eligible for credits. The credit is valued at 25% of costs up to $3,500 per property and $5,000 per company. To claim the credit, interested businesses should obtain the proper paperwork from the South Carolina Department of Revenue.
Santee Cooper - Rooftop Solar Rebate Program
Value:Up to $6,300
Residential and small commercial Santee Cooper customers may be entitled to rebates on new rooftop solar panels used for photovoltaic energy. Installations must be performed by a participating contractor and meet certain performance and safety standards. Additional information is available from the Santee Cooper website.
ConserFund Loan Program
Value:Varies
ConserFund is a loan initiative overseen by the South Carolina Energy Office. Loans support state/local agencies, public colleges and schools, and nonprofits in making energy efficiency improvements, including installing new renewable energy devices. Qualifying projects include building retrofit work, geothermal pumps, solar panels, or biomass systems. The available principal per loan varies from $25,000 to $500,000 depending on the nature of the project. The borrower has six months to begin installation from the time of the loan's disbursement. Qualifying public-sector borrowers may have 30% of their loan principal automatically forgiven.
Net Metering
Value:Varies
South Carolina electric customers using an interconnected solar or wind energy system may enter net metering agreements with their utility. Any system rated for under 20 kW (residential) or 1 MW (nonresidential) qualifies. The utility will install a bidirectional meter onto the system to measure net excess generation (NEG) sent back to the grid. Customers will receive energy bill credits for the NEG they generate at a fixed avoided-cost rate. Excess bill credits that remain at the end of the year will be paid as a lump sum. Additional information is available from individual utilities. Utilities may set their own net metering terms within a certain domain.
South Carolina Municipalities - Green Power Purchasing
Value:Varies
In 2001, Santee Cooper established a Green Power Program allowing residential customers to purchase renewably-sourced energy at $3 for a 100 kWh block. Commercial customers may purchase 200 kWh blocks at $6. Any customer-member of a South Carolina electric cooperative, as well as customers in Georgetown, may participate. Additional information is available through the Santee Cooper website.
State Building Energy Standards
Value:Varies
New government buildings in South Carolina are subject to green construction requirements. Generally, new occupied state facilities should meet or exceed the standards for LEED Silver certification. Buildings receiving two Green Globes may also meet the standards. By 2020, existing buildings should take measures to cut energy consumption by 20% from a 2000 baseline. Exceptions apply to buildings of certain types, as well as any project where it is determined that project costs would exceed gained energy efficiency. Additional information is available from the South Carolina Energy Office.
Interconnection Guidelines
Value:Varies
Distributed generation and grid interconnection practices have been standardized in South Carolina since 2006. New renewable energy systems in the South Carolina Electric and Gas, Duke Energy, and Progress Energy service areas will be organized into three regulatory tiers based on capacity. A system's tier will determine available permitting processes, fees, review turnaround time, and safety/performance standards. The state requires all interconnected systems to have multiple external disconnect switches. Non-residential system owners are required to carry at least $300,000 of liability insurance on their system.
Renewable Energy Manufacturing Tax Credit
Value:Varies
In South Carolina, tax credits are available for businesses involved in the manufacture of renewable energy equipment. Qualifying equipment includes solar, wind, biomass, geothermal, and a range of other technologies. The maximum available credit is $500,000 per year and $5 million per company. As a condition for receiving the credit, companies are required to invest a minimum amount in new manufacturing facilities, jobs, or other expenses. The required investment will vary from county to county. Additional information is available from the South Carolina Department of Commerce.
Santee Cooper - Renewable Energy Resource Loans
Value:Varies
Residential Santee Cooper customers may be eligible for special financing on new solar PV, wind, biomass, or energy-efficient water heating projects. Qualifying systems should be installed by a participating contractor and meet the requirements for grid interconnection and net billing. The maximum available principal per loan is $40,000, to be repaid over ten years at a low interest rate. To apply, customers should schedule an energy efficiency audit with a Santee Cooper representative and obtain preapproval for the interconnection of their system. Additional information is available from the Santee Cooper website.
Solar Energy, Small Hydropower, and Geothermal Tax Credit (Personal)
Value:Varies
South Carolina homeowners are eligible for tax credits on the equipment and installation expenses of a new renewable energy system or energy-efficient building materials. Qualifying technologies include solar, hydroelectric, and geothermal as used to generate electricity or for heating/cooling. All system components are also eligible for credits. The credit is valued at 25% of costs up to $3,500 per property and $5,000 per taxpayer. To claim the credit, interested homeowners should obtain the proper paperwork from the South Carolina Department of Revenue.
Are solar panels worth it in Colleton County, SC?
If you expect to own your residence longer than the solar system's payback period, solar panels are a good investment in Colleton County. By installing a 5 kW solar system in Colleton County, SC, you can expect to save approximately $29,722.8 over 20 years, with the break even point typically being 6 years.
The cost of not having solar panels in Colleton County, SC
Opting not to install solar panels or a separate backup energy solution results in you missing out on the savings noted earlier and makes you fully reliant on your electric utility for electricity. As we've seen in numerous recent news reports, complete reliance on your utility is not always ideal.
Residents in Colleton County have encountered around 1.32 outages per year on average. On average, an outage lasts 89.9 minutes. Major events such as winter storms, equipment failure, or construction accidents can significantly extend these time frames.
Take a look at the component below to see the number of current electricity customers without power in Colleton County.
Whether featuring a backup battery or not, a solar panel system can help alleviate the stress of possible future outages.
Power Outages
Currently, 0 customers are being tracked in Colleton County.
What impacts the cost of solar panels in Colleton County, SC?
Your Energy Needs - Investing in larger solar panel systems costs more upfront, but the price per watt is reduced as the system size grows. Many consumers realize it's a good idea to set up a solar system that can produce enough power to fully cover their electric bill, because it helps them reduce costs.
Make & Model - Solar panels and mounting equipment are available in a range of makes and models. It's important to choose a highly rated contractor, considering the brand preferences that contractors may have. Buyers often find that using better quality equipment leads to a more satisfactory long-term experience.
Solar Panel Type - The industry standard is now monocrystalline panels, and for good reason. Although they are pricier, they provide increased energy. The majority of installers utilize panels made from this material.
Your Property - Each property and home presents unique challenges. Irregular terrain, trees, or other obstructions may complicate the installation process. These days, the majority of solar installers can assess your home with satellite images and incorporate these considerations in the first cost estimate.
Labor Rates - Different companies have varying pay scales for their employees, and these costs are ultimately borne by consumers. It is often observed that businesses with higher wages garner superior reviews for their work and customer service.
Permitting & Interconnection - Your final installation price will be impacted by the permitting and utility interconnection fees, which differ by area. Quality local installers will incorporate these figures into your preliminary estimates to avoid any surprises.
See what solar panels cost in other Colleton County cities
The typical cost per watt for solar panels in Colleton County, SC as of August, 2025 is $3.3/W. After federal tax credits, the installation of a 5 kW solar panel system in Colleton County, SC is estimated to cost $11,550.
There are 10 rebates and incentives available in South Carolina from a range of utility providers and government organizations. Also, nearly everyone can take advantage of the 30% federal tax credit.
Paying cash offers the most savings, but there are now numerous financing options for solar panels that are also cost-effective. Information about financing options is typically detailed in initial quotes provided by installers.
Yes, the payback period for 5 kW solar energy systems in Colleton County, SC averages 6 years, with electricity savings of about $29,722.8 over 20 years.
Savings from 
Environmental Impacts 
