Solar Panel Cost Guide in Groton, MA (2025 Update)
- Groton Solar Installation Cost: $12,674
- 25-Year Savings: $16,678
- Payback Period: 12.3 Years
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Average Cost of Solar Panels in Groton
Find out how much it might cost to make the switch to solar in Groton.
In Groton, solar panels cost about 4 per watt on average.Using this figure, a typical 4.5-kW system would cost about $12,674 before the 0 federal solar tax credit is applied.
Keep in mind that the numbers above are only averages. The price you’ll end up paying for solar may look quite different based on your household energy needs, the type of solar panels you want, your solar contractor and more.Many homeowners find installing a solar system is a solid investment. The average homeowner in Groton can save about $22,000 on their electricity bills over 20 years.
You can click the button below to get connected with a vetted solar company in Groton for a quote for your home.
Solar savings over time in Groton
| Year | Return on Investment |
|---|---|
| 1 years | $-10,905 |
| 3 years | $-7,367 |
| 5 years | $-3,829 |
| 7 years | $-291 |
| 9 years | $3,247 |
| 11 years | $6,785 |
| 13 years | $10,323 |
| 15 years | $13,861 |
| 17 years | $17,399 |
| 19 years | $20,937 |
| 21 years | $24,475 |
| 23 years | $28,013 |
| 25 years | $31,551 |
Top Solar Installers in Groton
Many homeowners decide to use a solar panel company since installing solar panels yourself can be hard. Local solar installers can also help you maximize your return on investment by walking you through any local incentives you can benefit from and by offering warranties and repairs.
There are several licensed solar professionals that can install solar panels for you. Here are our suggestions:
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best for Leasing
Sunrun
- 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 Groton
Factors that Affect Solar Panel Costs in Groton
Cost is often one of the most important factors for homeowners who are considering investing in solar. There are a few primary factors that will push your cost above or below the average in Groton: solar equipment and system size, financing options and the solar installation company you choose. We’ll go over each of these briefly below.
Solar Equipment
One of the most important factors to consider when it comes to the cost of installing solar panels is the size of the solar system, which is measured in kilowatts (kW). The more energy your household consumes, the larger your system will likely need to be. You can expect to spend around $4,060 per kilowatt in Groton.The brand of solar panels and equipment you choose is another factor that will considerably affect costs. Solar panels that have higher efficiency, like monocrystalline panels, tend to cost more. Further, solar equipment consists of more than just the solar panels themselves. You’ll also need to make decisions about the kind of racks used to mount the panels, inverters, solar batteries, etc. It’s important to take all of this into consideration when searching for a solar system that falls within your budget.
Solar Financing Terms
If paying for solar panels in cash is difficult, solar loans are a solid route because they cut back your upfront costs and allow you to pay for your system over five to seven years on average.When estimating your overall cost, you should also calculate the interest you’ll pay if you decide on a solar loan. Also, paying a higher down payment can lower the total interest paid over time.
Solar Panel Installation Company
The solar installer you opt for to handle your switch to renewable energy can have an effect on your total costs. There are about 3 solar panel companies operating in Groton, and each can charge different amounts for labor and equipment.Larger national companies generally have lower costs, but some local companies undercut them by promoting sales and discounts. While the smaller companies might not have specific equipment options like Tesla Powerwall batteries or additional services like electric car charger installation, they might be cheaper overall.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $4.22 | $17,734 | $17,053 | 12.7 years |
| 8 kW | $4.14 | $23,191 | $23,192 | 12.5 years |
| 10 kW | $4.06 | $28,420 | $29,558 | 12.3 years |
| 12 kW | $3.98 | $33,422 | $36,152 | 12.0 years |
| 14 kW | $3.90 | $38,196 | $42,973 | 11.8 years |
| 16 kW | $3.82 | $42,744 | $50,022 | 11.5 years |
| 18 kW | $3.74 | $47,064 | $57,298 | 11.3 years |
| 20 kW | $3.65 | $51,156 | $64,801 | 11.0 years |
How to Save on Solar Panels
The company that does your solar panel installation will affect the warranties and brands you have access to, and it will also have an impact on your total cost. Because choosing a company can be a challenge, we have some tips to help you, such as:
- Reputation: Your solar installer should have a solid reputation as a company and have demonstrated expertise in the field. A couple of 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 satisfied reviews from past customers.
- Warranty: A high-quality company rises above other companies by offering the gold standard warranty — a 25-year, all-inclusive warranty covering parts, labor and performance.
- Installation Process: One of the most important things to understand when going solar is the installation process itself. Be sure to align on any details you should know with your solar company, such as what permits you should secure and what the project timeline is.
- Solar Panel Brands: Different companies have various brands and kinds of panels. If you prefer a specific brand, make sure the solar installer you’re considering has it.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's Groton, MA Solar Cost FAQs
How much does it cost to install solar panels in Groton?
The average cost of solar panels in Groton is about $20,300 for a 5-kW system and $40,600 for a 10-kW system before the ITC, but the real cost will depend on things such as the model of solar panels you want, what size system you need and how much energy you consume.
Is it better to lease or buy solar panels in Groton?
Leasing solar panels can be an option if you can’t afford to pay upfront or get a solar loan, but since you don’t own the system, you can’t take advantage of many solar incentives. Also your property value won’t increase, so you’ll have less savings over time. If you can afford to buy a solar system upfront, then buying is the better option if you want the most savings from going solar.
How much can I save on energy bills after switching to solar?
It is possible to eradicate your electricity bills with solar panels, but for most homeowners throughout Groton, that will require at least a 10-kW system. Not all homes will have the roof space for that size system, so you’ll want to contact a local solar installer to see how many panels can fit on your roof.
How long do solar panels last in Groton?
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 higher 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.