Solar Panel Cost Guide in Greenville, RI (2025 Update)

  • Greenville Solar Installation Cost: $11,860
  • 25-Year Savings: $13,671
  • Payback Period: 13.5 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

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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 Greenville

We go over average solar pricing in Greenville.

The average cost of a solar system in Greenville is 4 per watt.To cover the typical energy usage of the average home in Greenville, most homeowners require a 4.2-kilowatt system. Using the per-watt figure above, a solar installation costs about $11,860, or $16,960 before the federal solar tax credit of 0 is applied.

These figures are just estimates, and how much solar costs for you will differ based on the amount of energy your home requires and what company you want to go with.But, once you've paid the upfront cost of installation, the ROI for most homeowners is typically good, with a net average savings of about $20,000 over 20 years on utility bills.

For a personalized quote from a local solar installer that has been pre-vetted by the EcoWatch team, click the button below.

Solar savings over time in Greenville

YearReturn on Investment
1 years$-10,329
3 years$-7,267
5 years$-4,205
7 years$-1,143
9 years$1,919
11 years$4,981
13 years$8,043
15 years$11,105
17 years$14,168
19 years$17,230
21 years$20,292
23 years$23,354
25 years$26,416

Top Solar Installers in Greenville

DIY solar panel installation is a choice some homeowners opt for, but it's an undertaking that can be a headache. Taking advantage of an installer can make your switch to solar power much easier. Local solar companies can also help you maximize your return on investment by assisting with any local incentives you can take advantage of and by offering warranties and repairs.

Working with a vetted solar installer can help you make the most of your investment in solar. Here are our recommendations:

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Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

See all of the solar companies in Greenville

Factors that Affect Solar Panel Costs in Greenville

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

Solar Equipment

Solar system size, which is measured in kilowatts, is one of the largest factors that determines the overall cost of going solar. That’s why it’s crucial to accurately assess the size of the solar energy system needed for your home by figuring out your energy needs.The kind of solar equipment you choose can increase or decrease your cost by thousands or even tens of thousands of dollars. If you get the most efficient solar panel brands, you’ll end up paying more upfront than if you opted for the most affordable panels. However, more efficient panels could save you more in the long run on your electric bills. Additionally, extra products, like solar batteries, can bump up your total well above the Greenville average.

Solar Financing Terms

For some homeowners, paying for a solar system out of pocket can be a challenge. Solar loans are provided by most installers in Greenville, which can bring down, or in some cases totally eliminate, your upfront costs to make solar more affordable.Though solar loans make switching to solar energy more accessible for Greenville homeowners, they can also raise the total you pay for your system, depending on your interest rate. If you put down a larger down payment, though, you can cut back on how much interest you have to pay.

Solar Panel Installation Company

A final factor to consider when trying to figure out the cost of solar for your home or business in Greenville is the company you choose to install your solar panel system. Similar to choosing a company to renovate your kitchen, for example, there are plenty of solar installers that offer a range of services at different price points.You may see national solar installers that have lower prices due to their larger brand name and access to bulk equipment pricing, or you might see small, local installation companies offering deals or specials to compete with those larger companies.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$4.23$17,778$13,85414.1 years
8 kW$4.15$23,248$18,92813.8 years
10 kW$4.07$28,490$24,23013.5 years
12 kW$3.99$33,504$29,76013.2 years
14 kW$3.91$38,291$35,51813.0 years
16 kW$3.83$42,849$41,50312.7 years
18 kW$3.74$47,179$47,71712.4 years
20 kW$3.66$51,282$54,15912.2 years

How to Save on Solar Panels

There are many solar installers to choose from, all of which offer different warranties, solar panel brands and price points. To help you decide on the right company for you, here are some tips to keep in mind:

  • Reputation: Your solar installer should have a sound reputation as a company and have demonstrated expertise in the field. Two ways to check this are to look for whether a company has technicians certified by the North American Board of Certified Energy Practitioners (NABCEP) and if it has positive reviews from previous customers.
  • Warranty: A comprehensive, 25-year warranty can help keep your solar panels running smoothly and save you money on repairs and maintenance.
  • Solar Panel Brands: Each solar panel brand and type has varying levels of quality, longevity and efficiency. They will come at different prices as well. The company you choose plays a role in which solar panel brands you have access to.
  • Installation Process: Homeowners should make sure they know how exactly the installation process will go, as well as important factors like the completion timeline.
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Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Greenville, RI Solar Cost FAQs

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

This is a hard question to answer precisely, because the cost depends on many factors. Broadly speaking, it costs about $20,350 for a 5-kW system and $40,700 for a 10-kW system after the ITC is applied. You can expect to pay more if you want other solar equipment or higher quality panels, or if you have above-average energy usage. On the flip side, you can spend less if you opt for a smaller solar panel system or less expensive solar panels.

What other factors should I consider aside from cost when buying solar panels?

Cost is without a doubt one of the most important factors you should consider when buying solar panels, but other important factors include efficiency, durability, and quality.

Can solar panels significantly reduce my power bills?

It is possible to eliminate your electricity bills with solar panels, but for most homeowners in Greenville, that will require at least a 10-kW system. Not all homes can accommodate that size system, so you’ll want to contact a local solar installer to see how many panels can fit on your roof.

How many solar panels should I get to power my home?

The exact number of solar panels you need depends on your household energy usage and the average daily sunlight your roof gets. You can take a look at your energy bills for the past year to get an idea of the solar system size you'll need. The average household has to install between 20 and 35 panels to cover their typical energy usage.

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.