Solar Panel Cost Guide in Old Greenwich, CT (2024 Update)

  • Old Greenwich Solar Installation Cost: $11,749
  • 25-Year Savings: $18,247
  • Payback Period: 10.9 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 Old Greenwich

See how much it might cost to switch to solar power in Old Greenwich.

The national average cost of solar panels is $2.66 per watt, but in Old Greenwich it’s 4 per watt.To account for the typical energy usage of the average home in Old Greenwich, most homeowners require a 4.5-kilowatt system. Using the per-watt figure above, a solar installation costs about $11,749, or $16,801 before the federal solar tax credit of 0 is applied.

The true cost of your system can go above or below the average in Old Greenwich depending on a few factors, such as the brand of solar panels you choose and the solar contractor you hire.But, after you've paid the upfront cost of installation, the savings for most homeowners is usually rewarding, with a net average savings of about $23,000 over 20 years on energy bills.

You can click the button below to get connected with a pre-vetted solar installer in Old Greenwich for a quote for your home.

Solar savings over time in Old Greenwich

YearReturn on Investment
1 years$-9,905
3 years$-6,217
5 years$-2,529
7 years$1,159
9 years$4,847
11 years$8,535
13 years$12,223
15 years$15,911
17 years$19,599
19 years$23,287
21 years$26,975
23 years$30,663
25 years$34,351

Top Solar Installers in Old Greenwich

When making the switch to solar, many homeowners decide to use a solar installer since DIY solar panel installation can be a time-consuming project. Some solar companies, particularly local ones, can help you make the most of incentives in Old Greenwich, therefore optimizing your ROI.

If you're on the hunt for a solar company in Old Greenwich, we've compiled a list of our top suggestions here:

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 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 Old Greenwich

Factors that Affect Solar Panel Costs in Old Greenwich

Though the average cost of a solar system in Old Greenwich is $11,749, your actual cost may differ. There are several factors that can have a major impact on the cost of a solar panel installation. Below are some of the more crucial things to consider.

Solar Equipment

One of the most important factors to consider when it comes to the cost of adopting solar energy 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 $3,750 per kilowatt in Old Greenwich.Some solar brands — like Maxeon from SunPower — are more expensive upfront but also tend to offer better efficiency. In a city like Old Greenwich, where sunlight is relatively abundant, efficiency can quickly pay off. Also, if you have a small roof or you don’t have a lot of 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 Old Greenwich to be prohibitively steep, even if the investment pays off over time. Thankfully, nearly every solar company in the area offers financing options. Solar loans drastically decrease upfront costs for most homeowners, but they also result in a higher cost over time due to interest.You’ll have to consider the long-term cost of financing options, 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 principal cost. Making a larger down payment or finding a solar loan with a low APR could reduce your costs considerably.

Solar Panel Installation Company

The final key cost factor you should keep in mind is the installer you choose. Given the booming popularity of sustainable energy solutions in Old Greenwich, you’ll have lots of options to choose from, but each comes at different price points for labor and equipment.Additionally, some companies in Old Greenwich are more knowledgeable about local solar incentives and can help you learn about additional rebates or tax exemptions. However, they may charge more for that service. Even if they cost more upfront, they could help you save more money in the long run.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.90$16,380$19,84011.3 years
8 kW$3.83$21,420$26,87411.1 years
10 kW$3.75$26,250$34,11710.9 years
12 kW$3.67$30,870$41,57110.7 years
14 kW$3.60$35,280$49,23410.4 years
16 kW$3.52$39,480$57,10810.2 years
18 kW$3.45$43,470$65,19110.0 years
20 kW$3.38$47,250$73,4859.8 years

How to Save on Solar Panels

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

  • Reputation: Solar system installers that have great reviews from their customers and that have been operating for many years in most cases offer quality solar panel installation and expertise.
  • Solar Panel Brands: Homeowners will have different preferences for panels based on their locations and how much efficiency they need. Although there are many options for which type of solar panel you can get, not every company will have access to the exact one you may want or need, so make sure you ask for their list of offerings before making your decision.
  • Warranty: If you care about the longevity of your solar panels, checking if your company offers a 25-year, all-inclusive warranty can help put you at ease.
  • Installation Process: Make sure you’re on the same page with the company regarding how the installation process will go and what you need to do before your solar panel system is installed, such as repairing your electrical system or roof.

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 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 Old Greenwich, CT Solar Cost FAQs

What is the average cost of installing solar panels in Old Greenwich?

This is a tough 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 above-average energy needs. Conversely, you can spend less if you choose a smaller solar panel system or less efficient solar panels.

Should I lease or buy solar panels in Old Greenwich?

Leasing solar panels can be an appealing choice, as it often 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 way to go if you want to maximize your savings.

How much can I save on electricity bills after switching to solar?

Solar panels can potentially eliminate your electricity bills depending on your location and how much sunlight your home gets. Even if it doesn’t get rid of them completely, you can save a lot of money on your bills, about $1,207.35 per year.

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 stop working completely at that time. What this means is how much energy they produce 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.

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.