Solar Panel Cost Guide in Marlborough, CT (2025 Update)
- Marlborough Solar Installation Cost: $12,323
- 25-Year Savings: $17,819
- Payback Period: 11.4 Years
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Average Cost of Solar Panels in Marlborough
Let’s take a look at the average cost of solar in Marlborough.
The average cost of a solar panel system in Marlborough is 4 per watt.Since a 4.7-kW system is needed to cover the energy consumption of a typical home in Marlborough, the average price of going solar will be about $12,323 after claiming the federal solar tax credit of 0.
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 use, the type of solar panels you want, your solar contractor and more.But, after you've paid the upfront cost of installation, the ROI for most homeowners is typically fruitful, with a net average savings of about $22,000 over 20 years on electricity bills.
You can click the button below to get connected with a pre-vetted solar company in Marlborough that can help you get a more accurate cost estimate for your home.
Solar savings over time in Marlborough
| Year | Return on Investment |
|---|---|
| 1 years | $-10,479 |
| 3 years | $-6,791 |
| 5 years | $-3,103 |
| 7 years | $585 |
| 9 years | $4,273 |
| 11 years | $7,961 |
| 13 years | $11,649 |
| 15 years | $15,337 |
| 17 years | $19,025 |
| 19 years | $22,713 |
| 21 years | $26,401 |
| 23 years | $30,089 |
| 25 years | $33,777 |
Top Solar Installers in Marlborough
Although you can install solar panels on your own, it takes extra energy and knowledge. That's one of the reasons almost all homeowners choose to go with a solar panel installer. Solar installers provide key benefits that can help you maximize your investment, like warranties, monitoring and free repairs.
If you're looking for a solar installer in Marlborough, we've put together a list of our top suggestions here:
See all of the solar companies in Marlborough
Factors that Affect Solar Panel Costs in Marlborough
Cost is typically one of the most important factors for homeowners wanting to invest in solar. There are a few major factors that will push your cost above or below the average in Marlborough: 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
The size of the solar energy system you need for your household, which is measured in kilowatts, is the most important cost factor to consider. For every additional kilowatt you need, your total will most likely increase by about $3,750. Some solar panel brands — like Maxeon from SunPower — are more expensive upfront but also tend to offer better efficiency. In a city like Marlborough, where sunlight is relatively abundant, efficiency can quickly pay off. Also, if you have a small roof or limited space for your panels, higher efficiency options will be more impactful. Additional equipment like electric vehicle chargers and solar batteries will also increase the cost.
Solar Financing Terms
Many homeowners find the average cost of solar in Marlborough to be too expensive, even if the investment pays off over time. Thankfully, almost every solar company in the area provides financing options. Solar loans greatly decrease upfront costs in most cases, but they also result in a higher cost over time due to interest.You’ll have to consider the long-term cost of loans, including the total interest you’ll pay over the length of the loan. If you can only get a high-interest loan, then your total can be hundreds or even thousands of dollars more than the original cost. Making a larger down payment or securing a solar loan with a low APR could reduce your costs significantly.
Solar Panel Installation Company
Lastly, the company you opt for to install your solar panels can play a part in determining how much it costs. Marlborough’s solar companies all have different labor costs and add varying upcharges to equipment. Companies that 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 choose a company that provides the products, warranties and services you’re looking for and also is within your budget.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.90 | $16,380 | $18,154 | 11.9 years |
| 8 kW | $3.83 | $21,420 | $24,626 | 11.6 years |
| 10 kW | $3.75 | $26,250 | $31,307 | 11.4 years |
| 12 kW | $3.67 | $30,870 | $38,198 | 11.2 years |
| 14 kW | $3.60 | $35,280 | $45,300 | 10.9 years |
| 16 kW | $3.52 | $39,480 | $52,611 | 10.7 years |
| 18 kW | $3.45 | $43,470 | $60,133 | 10.5 years |
| 20 kW | $3.38 | $47,250 | $67,864 | 10.3 years |
How to Save on Solar Panels
The solar company you opt for will be a major factor in determining not only your overall costs, but also the kinds of solar panel brands, warranties, and other equipment you have access to. When choosing a solar company, there are a few important things you should take into account, including:
- Reputation: Make sure your solar company has a good reputation by verifying it has certifications and licenses, checking how long it's been in business and reading reviews by past customers and solar experts like EcoWatch.
- Solar Panel Brands: The kind of solar panel you’d like to get plays a role in which installer you should choose, since different companies have different panels.
- Installation Process: Make sure you’re aligned with the company in regard to how the installation process will go and what you need to do before your solar panels are installed, such as updating or replacing your electrical system or roof.
- Contract: When looking through your solar installer’s contract, ask for clarification about any terms you’re not sure of and make sure you understand what happens in scenarios such as a system component breaking or if the company goes out of business.
EcoWatch's Marlborough, CT Solar Cost FAQs
How much does it cost to install solar panels in Marlborough?
This is a hard question to answer exactly, because the cost depends on a few different factors. Broadly speaking, it costs about $18,750 for a 5-kW system and $37,500 for a 10-kW system after the ITC is applied. It will be more expensive if you want extra solar equipment or more efficient panels, or if you have higher-than-average energy needs. On the other hand, you can spend less if you opt for a smaller solar panel system or less expensive solar panels.
Should I lease or buy solar panels in Marlborough?
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 don’t have access to many solar incentives. Also your home 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.
Is switching to solar power worth it?
Whether or not solar panels are worth it depends on some different factors like the cost of electricity near you and how much direct sunlight your roof gets.
How often do you have to replace solar panels?
Although the average lifespan of solar panels is 25 to 30 years, that doesn't mean they should be disposed of at that time. What this means is their energy production will have decreased significantly after that point. You can opt to replace them after having them for that long or you can keep using them at a lower efficiency.
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.