Solar Panel Cost Guide in Johnston, RI (Oct 2022)

  • Johnston Solar Installation Cost: $8,270
  • 25-Year Savings: $13,677
  • Payback Period: 9.4 Years

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EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated 9/16/2022

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Average Cost of Solar Panels in Johnston

Let's take a look at the average cost of solar panels in Johnston.

The average cost of solar panels in Johnston is $3 per watt. To cover the typical energy needs of the average home in Johnston, most homeowners require a 4.2-kilowatt system. Using the figure above, a solar installation costs around $8,270, or $6,120 after the federal solar tax credit of 30% is applied.

Bear in mind that the figures above are only estimates based on the average Johnston homeowner. The price of a solar system for your home may be different depending on factors unique to you, like your household energy use and solar contractor. Despite the high upfront cost, the average Johnston homeowner can save about $20,000 on their power bills over 20 years, which is one of the positives of solar.

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

Solar savings over time in Johnston

Year Return on Investment
1 years $-7,392
3 years $-5,636
5 years $-3,881
7 years $-2,125
9 years $-369
11 years $1,386
13 years $3,142
15 years $4,898
17 years $6,654
19 years $8,409
21 years $10,165
23 years $11,921
25 years $13,677

Top Solar Installers in Johnston

When making the switch to solar, many homeowners choose to hire a solar installer since handling can be a time-consuming project. A solar installer can also help save you money over time by offering warranties, repairs and component replacements.

Working with a vetted solar installer can make going solar easier. Here are our recommendations:

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 Technology

The Green Panel

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

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 Johnston

Factors that Affect Solar Panel Costs in Johnston

While the average cost of solar panels in Johnston is $8,270, your actual cost may differ. There are several factors that can have a sizable impact on the cost of a residential solar panel installation. Below are some of the more crucial things to take into consideration.

Solar Equipment Size

When it comes to estimating the price of a solar system in Johnston, one of the most crucial factors is the size of the system you need. Solar systems are sized by kilowatts (kW) and are chiefly based on your home's energy consumption, which you can figure out by looking at past electricity bills. Your total cost can increase by around $2,840 for each additional kilowatt you need. The brand and kind of equipment you choose for your solar system can raise or lower the price quite significantly. If you prefer a trusted brand name like Tesla or SunPower, these often come at a higher price than other brands. Efficiency also matters. Whether you're opting for high efficiency because you have a small roof or just want maximum energy production, you can expect a higher equipment cost, but this can typically lead to more savings over time. Also, if you want extra equipment like an electric vehicle charger or solar batteries, this will also increase the cost.

Solar Financing Terms

Most solar companies in Johnston offer solar loans, which reduce the initial cost of installing solar panels. When figuring out your overall cost, you should also calculate the interest you'll pay if you go with a solar loan. Also, paying a higher down payment can lower the total interest paid over time.

Solar Panel Installation Company

The solar panel installation company you pick will influence your total cost to adopt solar energy. Different companies will charge different amounts for the equipment and labor. The size of the company can sometimes play the most considerable role in the cost. Larger national companies, like SunPro and Sunrun, often have lower pricing because of more resources and better pricing. Smaller local companies might be more costly, but they can sometimes have better customer service and more customization options, and the occasional sale or promotion can bring their pricing down to compete with bigger names.

Solar Panel Cost Data by System Size

System size Cost per system watt Solar system cost 25-Year savings Payback period
6 kW $2.95 $12,405 $19,227 9.8 years
8 kW $2.90 $16,222 $25,954 9.6 years
10 kW $2.84 $19,880 $32,840 9.4 years
12 kW $2.78 $23,379 $39,885 9.2 years
14 kW $2.73 $26,719 $47,090 9.1 years
16 kW $2.67 $29,900 $54,453 8.9 years
18 kW $2.61 $32,921 $61,975 8.7 years
20 kW $2.56 $35,784 $69,657 8.5 years

Solar Incentives in Johnston

Name Rhode Island C-PACE program
Incentive Amount
Website Visit here
More Info Click here

Name Renewable Energy Products Sales and Use Tax Exemption
Incentive Amount 100% exemption
Website Visit here
More Info Click here

Name Property Tax Exemption for Renewable Energy Equipment
Website Visit here
More Info Click here

Name Local Option - Property Tax Exemption for Renewable Energy Systems
More Info Click here

Name Small Scale Solar Grants (Commerce RI)
Website Visit here
More Info Click here

Name Residential Renewable Energy Tax Credit
Website Visit here
More Info Click here

How to Save on Solar Panels

Since the type of solar panels and the company you choose significantly affects your costs and your system's efficiency, production, and durability, it's important to pick the right ones for you. Here are some tips to keep in mind to help with your decision:

  • Solar Panel Brands: Not all solar companies carry the same brands of solar panels, so the brand and type of panel you want can play a big role in the company you choose.
  • Reputation: Solar panel companies that have great reviews from their customers and that have been in business for many years most likely provide high-quality solar panel installation and expertise.
  • Warranty: A high-quality company stands out from other companies by offering the gold standard warranty — a 25-year, all-inclusive warranty covering parts, labor and performance.
  • Contract: Although reading through a contract can take a lot of time, it's important to do it carefully so you can make sure you understand what services your solar company will provide and the terms of the warranty.

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 Technology

The Green Panel

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

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 Johnston, RI Solar Cost FAQs

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

The average cost of solar panels in Johnston is about $14,200 for a 5-kW system and $28,400 for a 10-kW system before the ITC, but the real cost will depend on things like the type of solar panels you want, what size system you need and how much energy you use.

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

Cost is a crucial factor to consider, but whether it's the most important for you depends on your goals for going solar. In places where rooftop space is limited, efficiency can trump the cost. Other factors that are important to think about are the quality and durability of your solar panels.

Can you sell solar power back to the grid in Johnston?

Each state has some form of net metering programs except Tennessee, South Dakota and Alabama currently. Some states allow you to sell power back to the grid, but others just offer you credit toward your future power bills.

How long do solar panels last in Johnston?

On average, the lifespan of solar panels is about 25 to 30 years. Some even last up to 50 years, but their efficiency decreases by about 0.8% each year. You can choose to replace them sooner if you want to maintain a higher level of energy production.

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.

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