Solar Panel Cost Guide in Derby, CT (2024 Update)

  • Derby Solar Installation Cost: $11,885
  • 25-Year Savings: $21,486
  • Payback Period: 9.8 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated June 24, 2024

Why you can trust EcoWatch

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 Derby

Find out what the average cost of installing solar panels is in Derby.

The average cost of a solar system in Derby is 4 per watt.To cover the typical energy needs of the average home in Derby, most homeowners require a 4.5-kilowatt system. Using the per-watt figure above, a solar installation costs around $11,885, or $16,996 before the federal solar tax credit of 0 is applied.

The true cost of your system can be higher or lower than the average in Derby depending on a variety of factors, such as the brand of solar panels you choose and the solar company you hire.But, once you've paid the upfront cost of installation, the return on investment for most homeowners is usually fruitful, with a net average savings of about $25,000 over 20 years on energy bills.

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

Solar savings over time in Derby

YearReturn on Investment
1 years$-10,041
3 years$-6,353
5 years$-2,665
7 years$1,023
9 years$4,711
11 years$8,399
13 years$12,087
15 years$15,775
17 years$19,463
19 years$23,151
21 years$26,839
23 years$30,527
25 years$34,215

Top Solar Installers in Derby

DIY solar panel installation is a choice some homeowners opt for, but it's an undertaking that can be a headache. Taking advantage of a solar company can make converting to solar power much easier. Companies can also have access to various kinds of the best solar panels and help you choose which one will be best for you.

You can get a free quote from a local solar installer on the cost of solar panels for your home. Here are some in Derby:

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

Solar Veteran

Trinity Solar

★★★★★
4.0
  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions
  • Limited service area
  • Relatively short workmanship warranty

See all of the solar companies in Derby

Factors that Affect Solar Panel Costs in Derby

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

Solar Equipment

When it comes to estimating the cost of a solar energy system in Derby, one of the most important factors is the size of the system you need. Solar systems are sized by kilowatts (kW) and are primarily based on your home’s energy usage, which you can figure out by looking at past power bills. Your total cost can increase by about $3,750 for each additional kilowatt you need.The kind of 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 in the long run on your energy bills. Additionally, extra products, such as solar batteries, can bump up your total well above the Derby average.

Solar Financing Terms

If paying for solar panels in cash is too expensive, solar loans are a solid route because they decrease your upfront costs and allow you to pay for your system over five to seven years on average.You’ll have to consider the long-term cost of loans, including the amount of interest you’ll pay over the length of the loan. If you’re only able to 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 interest rate could reduce your costs considerably.

Solar Panel Installation Company

A final factor to keep in mind when trying to figure out the cost of solar for your home or business in Derby is the company you hire to install your solar system. Similar to choosing a company to renovate your kitchen, for example, there are plenty of solar installers that offer a range of services for different budgets.Larger national companies generally have lower costs, but some local companies undercut them by offering sales and discounts. While the smaller companies might not have access to specific equipment options like Tesla Powerwall batteries or add-on services like electric car charger installation, they might be cheaper overall.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.90$16,380$23,85410.2 years
8 kW$3.83$21,420$32,22510.0 years
10 kW$3.75$26,250$40,8069.8 years
12 kW$3.67$30,870$49,5989.6 years
14 kW$3.60$35,280$58,5999.4 years
16 kW$3.52$39,480$67,8109.2 years
18 kW$3.45$43,470$77,2319.0 years
20 kW$3.38$47,250$86,8638.8 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 choosing 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 in business for many years most likely provide good-quality solar panel installation and expertise.
  • Warranty: Warranties that cover replacement parts and repairs over a couple decades are the gold standard in the business, and offering such a warranty is one indication of a quality company.
  • Installation Process: One of the most important things to understand when adopting solar power is the installation process itself. Be sure to clarify any details you need to know with your solar company, such as what permits you should secure and what the project timeline is.
  • Solar Panel Brands: Not all solar companies carry the same brands of solar panels, so the brand and type of panel you want can play a considerable role in the company you hire.

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

Solar Veteran

Trinity Solar

★★★★★
4.0
  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions
  • Limited service area
  • Relatively short workmanship warranty

EcoWatch's Derby, CT Solar Cost FAQs

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

This is a difficult 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. You can expect to pay more if you want extra solar equipment or more efficient panels, or if you have higher-than-average energy consumption. 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 Derby?

Leasing solar panels can be an appealing choice, as it typically comes with low or $0 upfront payments. The drawback 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 tax rebates and credits and your home value won’t increase. Buying solar panels is a better option if you want to maximize your savings.

How much can I save on power bills after installing solar panels?

Solar panels can potentially eliminate your electricity bills depending on where you’re located 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 $1,341.13 per year.

How often do you have to replace solar panels?

Even though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable at that time. What this means is how much energy they produce will have decreased significantly after that point. You can replace them once you've had 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.