Solar Panel Cost Guide in Rockville, MD (2024 Update)

  • Rockville Solar Installation Cost: $13,851
  • 25-Year Savings: $12,725
  • Payback Period: 14.7 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated April 21, 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 Rockville

We break down average solar pricing in Rockville.

Currently, the national average cost of solar panels is $2.66 per watt. However, in Rockville, the typical cost of a solar system is 4 per watt.The average solar panel system size in Rockville is around 5.6 kilowatts, meaning a cost of about $13,851 for a solar installation, or $19,807 before the 0 federal solar tax credit is applied.

The prices above are just estimates to give you an idea of the cost of solar panels. The true cost of installing solar panels can vary quite a bit based on a few factors, such as how many panels you need, your energy usage and what installation company you go with.Many homeowners find going solar is a solid investment. The average homeowner in Rockville can save around $17,000 on their power bills over 20 years.

Click the button below to get connected to a top solar installer in Rockville for a custom quote.

Solar savings over time in Rockville

YearReturn on Investment
1 years$-12,145
3 years$-8,733
5 years$-5,321
7 years$-1,909
9 years$1,503
11 years$4,916
13 years$8,328
15 years$11,740
17 years$15,152
19 years$18,564
21 years$21,976
23 years$25,388
25 years$28,801

Top Solar Installers in Rockville

Many homeowners opt for a solar panel company since trying to install solar panels by yourself can be time-consuming. Plus, warranties and repairs from your solar panel installer can protect your investment and bring down the cost of maintenance in the long run.

Working with a licensed solar company can make going solar easier. Here are our recommendations:

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 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

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

See all of the solar companies in Rockville

Factors that Affect Solar Panel Costs in Rockville

There are several factors that can affect your solar panel installation cost, such as the size of your system, the equipment you choose, your financing options and the specific company that does the installation.

Solar Equipment

When it comes to estimating the cost of a solar energy system in Rockville, one of the most important factors is the size of the system you need. Solar systems are sized by kilowatts (kW) and are chiefly based on your home’s energy consumption, which you can gauge by looking at past power bills. Your overall cost can increase by around $3,540 for each additional kilowatt you need.There are several different solar panel brands and the one you pick also affects the cost. Generally speaking, the brands that have better efficiency tend to also cost more. Plus, the type of equipment you’re looking to install can affect your total cost. If you just need panels, your system will be much less expensive than if you also need solar batteries or an electric vehicle charger.

Solar Financing Terms

Solar panels can save you money on energy bills over many years, but they can also be a big investment. That’s why many Rockville homeowners opt to finance their solar panel systems to offset upfront costs.However, the interest on solar loans also adds to your all-in costs, so it’s crucial to consider that as well. You can always reduce the total you pay in interest and in some cases even your APR by making a larger down payment.

Solar Panel Installation Company

The solar installation company you select will influence your total cost to adopt solar energy. Different companies will charge different amounts for the equipment and labor.Larger national companies generally have lower costs, but some local companies compete with them by offering sales and discounts. While the smaller companies might not have specific equipment options like Tesla Powerwall batteries or extra services like electric vehicle 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$3.68$15,463$9,83015.3 years
8 kW$3.61$20,220$13,50315.0 years
10 kW$3.54$24,780$17,37514.7 years
12 kW$3.47$29,141$21,44514.4 years
14 kW$3.40$33,304$25,71214.1 years
16 kW$3.33$37,269$30,17913.8 years
18 kW$3.26$41,036$34,84313.5 years
20 kW$3.19$44,604$39,70613.2 years

How to Save on Solar Panels

There are a large number of companies available in Rockville, and some homeowners feel overwhelmed considering their options. Choosing the right company for you can be tough, so here are some tips to help you decide:

  • Solar Panel Brands: The kind of solar panel you’d like to install plays a part in which company you should go with, since different companies provide different panels.
  • Contract: When reading through your solar installer’s contract, ask questions about any terms you’re not sure of and make sure you understand what happens in scenarios like a system component breaking or the company going out of business.
  • Reputation: Solar panel companies that have great reviews from their customers and that have been in business for many years in most cases provide quality solar panel installation and expertise.
  • Installation Process: Get detailed information 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 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

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch's Rockville, MD Solar Cost FAQs

How much does it cost to install solar panels in Rockville?

The average cost of solar panels in Rockville is about $17,700 for a 5-kW system and $35,400 for a 10-kW system before the ITC, but the real cost will depend on certain factors such as the kind of solar panels you want, what size system you need and how much energy you use.

Should I lease or buy solar panels in Rockville?

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 bang for your buck from going solar.

Is switching to solar power worth it?

Solar panels can be a great investment for lots of homeowners, but they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight and/or your energy bills are already pretty low, solar panels might not be for you.

How long do solar panels last in Rockville?

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 how much energy they produce will have decreased significantly after that point. You can choose to replace them once you've had them for that long or you can continue to use 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.