Solar Panel Cost Guide in Duncan, SC (2024 Update)

  • Duncan Solar Installation Cost: $19,511
  • 25-Year Savings: $29,405
  • Payback Period: 10.9 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated April 21, 2024

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Average Cost of Solar Panels in Duncan

We break down average solar pricing in Duncan.

In Duncan, solar panels cost about 3 per watt on average.Using this figure, a typical 8.1-kW system would cost about $19,511 before the 0 federal solar tax credit is applied.

Keep in mind that the numbers above are only averages. The price you’ll pay for solar may vary based on your household energy consumption, the type of solar panels you want to get, your solar contractor and more.Many homeowners find adopting solar power is a rewarding investment. The average homeowner in Duncan can save about $21,000 on their energy bills over 20 years.

To get a free estimate from a highly rated solar installer in Duncan, you can click the button below.

Solar savings over time in Duncan

YearReturn on Investment
1 years$-18,026
3 years$-15,055
5 years$-12,084
7 years$-9,114
9 years$-6,143
11 years$-3,173
13 years$-202
15 years$2,768
17 years$5,739
19 years$8,709
21 years$11,680
23 years$14,650
25 years$17,621

Top Solar Installers in Duncan

DIY solar panel installation is a way to cut costs, but it's an undertaking that can use up a lot of your time and energy. Taking advantage of a solar panel installer can make swapping over to solar power much easier. Also, if you’d like to maximize your investment in solar energy, going with a solar company can help with that as well. Different providers can offer repairs, expertise on how to install solar panels and sometimes even information on local incentives and net metering programs.

If you’d like to go solar but still aren’t certain which solar panel company to go with, here are our recommendations for providers near you:

Best National Provider

SunPower

★★★★★
5.0
  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Outstanding Regional Installer

Renu Energy Solutions

★★★★★
4.5
  • Excellent reputation
  • Many financing options
  • Representatives are experts on local policies
  • No leases or PPAs

See all of the solar companies in Duncan

Factors that Affect Solar Panel Costs in Duncan

The cost of installing a solar system in Duncan can vary by more than $10,000 from home to home. Your actual cost depends on several factors. The largest one is the size of the system your household needs, and other factors include the equipment you choose, financing options and the solar installer you choose.

Solar Equipment

System size, which is measured in kilowatts, is one of the largest factors that affects the overall cost of going solar. Because of that, it’s a priority to accurately assess the size of the solar energy system needed for your home by figuring out your energy needs.Some solar brands — like Maxeon from SunPower — are more expensive upfront but also tend to offer higher efficiency. In a city like Duncan, where sunlight is abundant, efficiency can quickly pay off. Plus, if you have a small roof or you don’t have a lot of space for your panels, higher efficiency options will be a better option. Additional equipment like electric vehicle chargers and solar batteries will also increase the cost.

Solar Financing Terms

Most solar companies in Duncan have solar loans, which reduce the initial cost of installing a solar system.It’s wise to add the interest you’ll pay in your final cost estimate. If you can afford to pay a higher down payment, you can reduce your total costs and how long it’ll take to pay off the loan.

Solar Panel Installation Company

Finally, the company you opt for to install your solar panels can play a role in determining how much you pay. Duncan’s solar companies all have different labor costs and add varying upcharges to equipment. The size of the company sometimes plays the most significant role in the cost of installation. Larger national companies, like SunPro and Sunrun, often have lower prices because they have access to more resources and bulk pricing. Smaller local companies might be more costly, but they generally have better customer service and more customization options, and the occasional sale or discount can bring their pricing lower to compete with bigger companies.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.59$15,070$18,19211.3 years
8 kW$3.52$19,706$24,64211.1 years
10 kW$3.45$24,150$31,28610.9 years
12 kW$3.38$28,400$38,12310.7 years
14 kW$3.31$32,458$45,15310.5 years
16 kW$3.24$36,322$52,37610.2 years
18 kW$3.17$39,992$59,79210.0 years
20 kW$3.11$43,470$67,4029.8 years

How to Save on Solar Panels

Since the type of solar panels and the company you choose has an impact on your costs and your system’s durability and efficiency, it’s important to select the right ones for you. Here are some things to keep in mind to help with your decision:

  • Solar Panel Brands: Each solar panel brand and type has varying levels of quality, durability and energy efficiency. They will come at different costs as well. The company you choose has an impact on which solar panel brands you have access to.
  • Contract: Before signing a contract with a solar company, make sure you look it over carefully so you understand the terms. Also, ask questions if you’re not sure about some of the terms, such as what to do if a part breaks or malfunctions and if there are any guarantees about energy production.
  • Reputation: The North American Board of Certified Energy Practitioners (NABCEP) is a respected certification organization for clean energy professionals. If your solar panel installer is NABCEP-certified, it likely has a solid reputation and is qualified to do the job well. Another way you can research your installer’s reputation is by reading reviews.
  • Warranty: Warranties that provide coverage for replacement parts and repairs over around 25 years are the best you can get in the business, and offering such a warranty is one mark of a good company.

Best National Provider

SunPower

★★★★★
5.0
  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Outstanding Regional Installer

Renu Energy Solutions

★★★★★
4.5
  • Excellent reputation
  • Many financing options
  • Representatives are experts on local policies
  • No leases or PPAs

EcoWatch's Duncan, SC Solar Cost FAQs

What is the average cost of installing solar panels in Duncan?

This is a tough question to answer exactly, because the cost depends on a variety of factors. Generally speaking, it costs about $17,250 for a 5-kW system and $34,500 for a 10-kW system after the ITC is applied. It will be more expensive if you want additional solar equipment or higher quality panels, or if you have above-average energy needs. On the other hand, you can spend less if you go with a smaller solar panel system or less expensive solar panels.

Can you get solar panels for free in Duncan?

You can’t get solar panels for free in Duncan. However, you may still be able to get them on a lower budget. You can lease solar panels for a low upfront cost or, if you want to own your solar panels, you can finance them with a solar loan.

How much can I save on energy bills after installing solar panels?

Solar panels can potentially eliminate your electricity bills depending on your location and how much sunlight your home gets. Even if it doesn’t get rid of them completely, you can save a lot of money on your bills, about $1,108.72 per year.

What solar power system size is right for my home?

To figure out how many solar panels you need, you should find out how much energy your home uses and how much sunlight your home gets. For a general estimate, however, since each panel can typically produce about 250 to 400 watt-hours per hour, the average household will need 20 to 35 panels.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert's opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.