Solar Panel Cost Guide in Fairfax, CA (2024 Update)

  • Fairfax Solar Installation Cost: $7,653
  • 25-Year Savings: $20,310
  • Payback Period: 7.3 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 Fairfax

We go over average solar pricing in Fairfax.

In Fairfax, solar panels cost about 3 per watt on average.Since a 3.2-kW system is needed to cover the energy consumption of a typical home in Fairfax, the average price of going solar will be about $7,653 after claiming the federal solar tax credit of 0.

The actual price you pay can go higher or lower than the average in Fairfax depending on a few factors, such as the kind of solar panels you choose and the solar installer you hire.Many homeowners find installing solar panels is a solid investment. The average homeowner in Fairfax can save around $32,000 on their energy bills over 20 years.

You can click the button below to get connected with a vetted solar company in Fairfax for a quote for your home.

Solar savings over time in Fairfax

YearReturn on Investment
1 years$-6,115
3 years$-3,039
5 years$37
7 years$3,113
9 years$6,188
11 years$9,264
13 years$12,340
15 years$15,416
17 years$18,492
19 years$21,567
21 years$24,643
23 years$27,719
25 years$30,795

Top Solar Installers in Fairfax

When making the switch to solar, many homeowners decide to hire a solar installer since handling can be a difficult project. Plus, if you’re not certain what brand of solar panels and equipment you want, a solar company can help you figure that out after a site survey and consultation.

If you're searching for a solar installer in Fairfax, we've organized 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 Fairfax

Factors that Affect Solar Panel Costs in Fairfax

There are a number of factors that can influence your solar system 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

Solar system size, which is measured in kilowatts, is one of the largest factors that affects the overall cost of installing solar panels. That’s why it’s important to accurately gauge the size of the solar energy system needed for your home by figuring out your average energy use.The kind of solar equipment you choose can increase or decrease your cost 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. On the other hand, more efficient panels could save you more in the long run on your electric bills. In addition, extra products, such as solar batteries, can bring your total well above the Fairfax average.

Solar Financing Terms

Solar panels can save you money on power bills over time, but they can also be a big investment. That’s why many Fairfax homeowners choose to finance their solar panel systems to make paying for solar more affordable.You’ll have to consider the long-term cost of financing options, including the amount of 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 interest rate could reduce your costs significantly.

Solar Panel Installation Company

Finally, the company you opt for to install your solar system can affect how much it costs. Fairfax’s solar companies all have different labor costs and add varying upcharges to equipment. Larger national companies usually have lower costs, but some local companies undercut them by promoting sales and discounts. While the smaller companies might not have access to specific equipment options like Tesla Powerwall batteries or additional 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$3.61$15,157$34,9887.6 years
8 kW$3.54$19,821$47,0397.4 years
10 kW$3.47$24,290$59,2857.3 years
12 kW$3.40$28,565$71,7247.1 years
14 kW$3.33$32,646$84,3597.0 years
16 kW$3.26$36,532$97,1876.8 years
18 kW$3.19$40,224$110,2106.7 years
20 kW$3.12$43,722$123,4276.5 years

How to Save on Solar Panels

There are a large number of companies available in Fairfax, 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: Each solar panel brand and type has varying levels of quality, durability and efficiency. They will come at different prices as well. The company you choose affects which solar panel brands you have access to.
  • Reputation: Your solar installer should have a solid reputation as a company and have verifiable expertise in the field. A couple of ways to check this are to look for whether a company has technicians that hold a certification from the North American Board of Certified Energy Practitioners (NABCEP) and if it has good reviews from past customers.
  • Contract: It’s important to look over your solar installer’s contract carefully to understand what services they will provide, what the warranty covers and what expectations you should have about the installation process.
  • Warranty: Many companies offer different kinds of warranties that cover different things. A 25-year, all-inclusive warranty is the gold standard.

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 Fairfax, CA Solar Cost FAQs

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

This is a difficult question to answer exactly, because the cost depends on many factors. Generally speaking, it costs about $17,350 for a 5-kW system and $34,700 for a 10-kW system after the ITC is applied. It will be more expensive if you want other solar equipment or higher quality panels, or if you have above-average energy consumption. Conversely, you can spend less if you go with a smaller solar panel system or cheaper solar panels.

What other factors should I consider in addition to cost when buying solar panels?

Cost is without a doubt one of the most important factors you should consider when buying solar panels, but other important factors include efficiency, durability, and quality.

Is it worth going solar in Fairfax?

Whether or not solar panels are worth it depends on some different factors like local electricity rates and the amount of direct sunlight your roof gets.

How often do you have to replace solar panels?

Though 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 their energy production will have decreased significantly after that point. You can opt to 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.