Solar Panel Cost Guide in Waltham, MA (Feb 2023)

  • Waltham Solar Installation Cost: $9,179
  • 25-Year Savings: $17,545
  • Payback Period: 8.6 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 20, 2023

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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 Waltham

We go over average solar pricing in Waltham.

Although the national average of solar panels is $2.66 per watt, solar panels in Waltham generally cost about $3. The average Waltham homeowner needs a 4.5-kilowatt system, which would cost about $9,179, or $6,792 after the federal solar tax credit of 30% is applied.

Remember that the numbers above are only averages. The price you'll end up paying for solar may vary based on your household energy needs, the type of equipment you want, your solar contractor and more. With average savings of about $23,000 on energy bills over 20 years, many homeowners in Waltham find investing in solar has a decent ROI.

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

Solar savings over time in Waltham

Year Return on Investment
1 years $-8,110
3 years $-5,972
5 years $-3,834
7 years $-1,696
9 years $442
11 years $2,580
13 years $4,718
15 years $6,855
17 years $8,993
19 years $11,131
21 years $13,269
23 years $15,407
25 years $17,545

Top Solar Installers in Waltham

Many homeowners choose to use a solar installer since figuring out how to install solar panels by yourself can be a lot of work. The expertise that solar installers offer can be useful as well, particularly if you aren't sure what brand of solar equipment you need.

There are several licensed solar professionals that can help you install your solar system. Here are our suggestions:

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 Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Technology

Tesla Energy

★★★★★
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

See all of the solar companies in Waltham

Factors that Affect Solar Panel Costs in Waltham

Cost is usually one of the most important factors for homeowners who want to invest in solar. There are a few primary factors that will push your cost above or below the average in Waltham: solar equipment and system size, financing options and the solar installation company you choose. We'll discuss each of these briefly below.

Solar Equipment

One of the most important factors to consider when it comes to the cost of going solar is the size of the solar system, which is measured in kilowatts (kW). The more power your household consumes, the larger your system will likely need to be. You can expect to pay around $2,940 per kilowatt in Waltham. There are many different solar panel brands and the one you pick also changes the cost. Typically, the brands that offer higher efficiency tend to also cost more. Plus, the type of equipment you're looking to get can affect your total cost. If you only need panels, your system will be much less expensive than if you also need solar batteries or an electric vehicle charger.

Solar Financing Terms

If paying for solar panels in cash is too expensive, solar loans are a solid route because they reduce your upfront costs and allow you to pay for your system over a term of, on average, between five and seven years. Although solar loans make switching to solar energy more accessible for Waltham homeowners, they can also add to the total you pay for your system, depending on your interest rate. If you put down a larger down payment, though, you can avoid paying as much in interest.

Solar Panel Installation Company

The final key cost factor you should keep in mind is the installer you choose. Given the booming popularity of clean energy solutions in Waltham, you'll have plenty of options to choose from, but each comes at varying price points for labor and equipment. The size of the company can sometimes play the most significant role in your costs. Larger national companies, like SunPro and Sunrun, often have lower prices due to 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 promotion can bring their pricing lower 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 $3.06 $12,842 $23,114 8.9 years
8 kW $3.00 $16,793 $31,147 8.8 years
10 kW $2.94 $20,580 $39,346 8.6 years
12 kW $2.88 $24,202 $47,709 8.4 years
14 kW $2.82 $27,660 $56,236 8.2 years
16 kW $2.76 $30,952 $64,929 8.1 years
18 kW $2.70 $34,080 $73,786 7.9 years
20 kW $2.65 $37,044 $82,807 7.7 years

How to Save on Solar Panels

The company that does your solar panel installation will affect the warranties and brands available to you, and it will also have an impact on your total cost. Because selecting a company can be a challenge, we have some tips to help you, such as:

  • Reputation: The North American Board of Certified Energy Practitioners (NABCEP) is a respected certification organization for sustainable energy professionals. If your solar panel installer is NABCEP-certified, it likely has a good reputation and is qualified to install your solar system. Another way you can look into your installer's reputation is by reading reviews.
  • Contract: Read the contract terms carefully to make sure you understand the cost breakdown, project completion timeline incentives and warranties.
  • Solar Panel Brands: The type of solar panel you want to install plays a role in which installer you should opt for, since different companies provide different panels.
  • Installation Process: Get details from your solar company about the installation process and what to expect, such as when the site survey will be done and what the project timeline is.

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 Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Technology

Tesla Energy

★★★★★
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

EcoWatch's Waltham, MA Solar Cost FAQs

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

The average cost of solar panels in Waltham is about $14,700 for a 5-kW system and $29,400 for a 10-kW system before the ITC, but the real cost will depend on things like the kind of solar panels you want, what size system you need and how much energy you consume.

Are solar panels free in Waltham?

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

Do solar panels increase how much your home is worth?

Buying or financing solar panels for your home can increase the value of your property by about 4%, according to research done by Zillow. The average home value in Waltham is currently $661,846, which means you can expect a value of about $27,136 more than houses without a solar system. The exact figures will vary, but most experts agree that installing solar panels in Waltham is a fruitful investment.

How many solar panels do I need to power my home?

The exact number of solar panels you need depends on your household energy consumption 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 buy between 20 and 35 panels to account for 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.

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