Solar Panel Cost Guide in South Portland, ME (2024 Update)

  • South Portland Solar Installation Cost: $13,948
  • 25-Year Savings: $12,247
  • Payback Period: 15.4 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 03, 2024

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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 South Portland

Let’s have a look at the average cost of solar in South Portland.

While the national average of solar panels is $2.66 per watt, solar panels in South Portland typically cost around 4.The average South Portland homeowner needs a 5.2-kilowatt system, which would cost about $13,948 with the federal tax credit, or $19,946 before the 0 tax credit is applied.

These figures are just averages, and your own solar costs will look different based on factors unique to your home and what company you choose to go with.But, after you've paid the upfront cost of installation, the ROI for most homeowners is usually rewarding, with a net average savings of about $16,000 over 20 years on electricity bills.

To see your potential ROI and connect with a local solar expert, click the button below.

Solar savings over time in South Portland

YearReturn on Investment
1 years$-12,810
3 years$-10,534
5 years$-8,257
7 years$-5,981
9 years$-3,704
11 years$-1,428
13 years$849
15 years$3,125
17 years$5,402
19 years$7,678
21 years$9,955
23 years$12,231
25 years$14,508

Top Solar Installers in South Portland

When switching to solar energy, many homeowners choose to go with a solar installation company since putting up a solar system yourself can be a time-consuming project. The expertise that solar companies offer can be valuable as well, particularly if you don’t quite know what brand of solar equipment would be right for your home.

You can work with a local solar installer to get a free estimate on how much your investment in solar could cost for your home. Here are some in South Portland:

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

Tesla Energy

★★★★★
3.2
  • 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

See all of the solar companies in South Portland

Factors that Affect Solar Panel Costs in South Portland

For many South Portland homeowners, the decision to install solar panels depends on cost. However, the range of solar installation costs can be quite wide in South Portland, with typical prices between $20,000 to $40,000. There are a few factors that greatly influence the price you’ll pay, which we'll go over below.

Solar Equipment

Solar system size, which is measured in kilowatts, is one of the largest factors that affects the overall cost of installing solar panels. Because of that, it’s crucial to accurately gauge the size of the solar energy system needed for your home by figuring out your typical energy use.The solar equipment you choose can bring your price up or down by thousands or even tens of thousands of dollars. If you choose 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 over time on your power bills. In addition, extra products, such as solar batteries, can bump up your total well above the South Portland average.

Solar Financing Terms

For some homeowners, paying for solar out of pocket can be a challenge. Solar loans are provided by most installers in South Portland, which can bring down, or in some cases eliminate, your upfront costs to make solar more affordable.When estimating your overall cost, you should also calculate the interest you’ll pay if you opt for a solar loan. Also, paying more upfront can lower the total interest paid over time.

Solar Panel Installation Company

The solar installer you select will influence your total cost to make the switch to solar power. Different companies will bill different amounts for the equipment and labor.Some companies only sell products with high efficiency and therefore a higher price point — like Maxeon solar panels from SunPower or Tesla Powerwall batteries — so choosing those installers will generally come at a higher cost. It’s best to do some research and go with the company that offers the products, warranties and services you want and also is within your budget.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.95$16,598$9,30116.0 years
8 kW$3.88$21,706$12,82715.7 years
10 kW$3.80$26,600$16,56515.4 years
12 kW$3.72$31,282$20,51715.1 years
14 kW$3.65$35,750$24,68114.8 years
16 kW$3.57$40,006$29,05814.5 years
18 kW$3.50$44,050$33,64814.2 years
20 kW$3.42$47,880$38,45113.9 years

How to Save on Solar Panels

The company that does your system installation will affect the warranties and brands you have access to, and it will also have an impact on your total cost. Since picking a company can be a tough decision, we have some tips to help you, such as:

  • Contract: Before signing a contract with a solar installer, be sure to read it through completely so you understand the terms. Also, ask questions if you’re not sure about some of the terms, such as what the warranty covers and what services you can expect from them.
  • Reputation: The North American Board of Certified Energy Practitioners (NABCEP) is a respected certification organization for renewable 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.
  • Solar Panel Brands: Each solar panel brand and type offers varying levels of quality, durability and energy efficiency. They will come at different price points as well. The company you choose affects which solar panel brands you have access to.
  • Warranty: An all-inclusive, 25-year warranty can help keep your solar panel system running for a long time and save you money on part replacement and repairs.

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

Tesla Energy

★★★★★
3.2
  • 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

EcoWatch's South Portland, ME Solar Cost FAQs

What is the average cost of installing solar panels in South Portland?

This is a tough question to answer exactly, because the cost depends on a few different factors. Broadly speaking, it costs about $19,000 for a 5-kW system and $38,000 for a 10-kW system after the ITC is applied. It will cost more if you want extra solar equipment or more efficient panels, or if you have above-average energy usage. On the flip side, you can spend less if you go with a smaller solar panel system or cheaper solar panels.

Is it better to lease or buy solar panels in South Portland?

Leasing solar panels can be an appealing choice, because it typically comes with low or $0 upfront payments. The downside is that you won’t be able to save as much. If you lease, you don’t own the system, so you can’t claim any incentives and your home value won’t increase. Buying solar panels is a better option if you want to get the most savings.

Does South Portland have a net metering program?

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 electricity bills.

How long do solar panels last in South Portland?

On average, solar panels can last 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 larger amount 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.