Solar Panel Cost Guide in Sonoma, CA (2023 Update)

  • Sonoma Solar Installation Cost: $7,496
  • 25-Year Savings: $20,434
  • Payback Period: 7.1 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated October 25, 2023

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 Sonoma

Find out how much it might cost to make the switch to solar in Sonoma.

Although the national average of solar panels is $2.66 per watt, solar panels in Sonoma generally cost about 2.73.Using this figure, a typical 3.1-kW system would cost about $5,905 before the 30% federal solar tax credit is applied.

The true cost of your system can be higher or lower than the average in Sonoma based on several factors, such as the type of solar panels you choose and the solar contractor you hire.But, after you've paid the upfront cost of installation, the ROI for most homeowners is quite fruitful, with a net average savings of about $32,000 over 20 years on power bills.

To get a free estimate from a top solar company in Sonoma, you can click the button below.

Solar savings over time in Sonoma

Year Return on Investment
1 years $-5,958
3 years $-2,882
5 years $194
7 years $3,269
9 years $6,345
11 years $9,421
13 years $12,497
15 years $15,573
17 years $18,648
19 years $21,724
21 years $24,800
23 years $27,876
25 years $30,952

Top Solar Installers in Sonoma

Do-it-yourself solar panel installation is a possibility, but it's an undertaking that can be a headache. Using an installer can make swapping over to solar power much easier. Another upside of using a solar company is that they can help you optimize your ROI by bringing down your future costs of repairs and replacements due to warranties and giving you information on local incentives you can take advantage of.

There are several licensed solar professionals that can help you install your solar panels. Here are our suggestions:

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 Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

See all of the solar companies in Sonoma

Factors that Affect Solar Panel Costs in Sonoma

The cost of installing a solar system in Sonoma can vary by more than $10,000 from home to home. Your actual cost depends on several factors. The largest one is the size of the system you need, and other factors include equipment choices, financing options and the solar installer you choose.

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 energy your household uses, the larger your system will likely need to be. You can expect to pay about $2,730 per kilowatt in Sonoma.The brand and kind of equipment you choose for your solar system can increase or decrease the price quite significantly. If you prefer a trusted brand name like Tesla or SunPower, these often have a higher price tag than other brands. Efficiency also matters. Whether you're opting for high efficiency because you have limited roof space or just want maximum energy production, you will be looking at a higher equipment cost, but this can typically lead to greater savings over time. Plus, if you want additional equipment like an electric vehicle charger or solar batteries, this will also increase the cost.

Solar Financing Terms

Solar panels can save you money on energy bills over time, but they can also be a significant investment. That's why many Sonoma homeowners opt to finance their solar panel systems to make paying for solar more affordable.It's wise to add the interest you'll pay in your final cost estimate. If you can afford to pay a higher down payment, you can reduce your total costs and how long it'll take to pay back the loan.

Solar Panel Installation Company

A final factor to consider when trying to evaluate the cost of solar for your home or business in Sonoma is the company you get to install your solar system. As with choosing a company to build a deck or pool, for instance, there's no shortage of solar installers that offer a range of services at different costs.Some companies only sell high-quality, high-efficiency and high-price products — like Maxeon solar panels from SunPower or Tesla Powerwall batteries — so choosing those installers will generally come with an above-average cost. It's best to do some research and go with the company that has the products, warranties and services you're looking for and also fit into 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 $3.61 $15,157 $36,037 7.4 years
8 kW $3.54 $19,821 $48,438 7.3 years
10 kW $3.47 $24,290 $61,033 7.1 years
12 kW $3.40 $28,565 $73,822 7.0 years
14 kW $3.33 $32,646 $86,806 6.8 years
16 kW $3.26 $36,532 $99,984 6.7 years
18 kW $3.19 $40,224 $113,357 6.5 years
20 kW $3.12 $43,722 $126,924 6.4 years

How to Save on Solar Panels

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

  • Solar Panel Brands: Different companies will offer different brands and kinds of panels. If you want a specific brand, make sure the solar installer you're considering has it.
  • Warranty: A quality company stands out from other companies by offering the gold standard warranty — a 25-year, all-inclusive warranty covering parts, labor and performance.
  • Reputation: Your solar installer should have a sound reputation as a company and have proven 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 positive reviews from previous customers.
  • Contract: When reading through your solar company's contract, ask questions about any terms you're not sure of and be sure you understand what happens in scenarios such as a system component breaking or the company going out of business.

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 Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch's Sonoma, CA Solar Cost FAQs

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

This is a hard question to answer exactly, because the cost depends on a variety of factors. Generally speaking, it costs about $13,650 for a 5-kW system and $27,300 for a 10-kW system after the ITC is applied. It will be more expensive if you want additional solar equipment or more efficient panels, or if you have above-average energy consumption. On the flip side, you can spend less if you opt for a smaller solar panel system or less expensive solar panels.

What other factors should I consider other than cost when buying solar panels?

The initial cost is a very important factor to consider, but whether it's the most important for you depends on your reasons for going solar. In areas where rooftop space is limited, efficiency can be more important than the cost. Other factors that are important to think about are the quality and durability of your solar panels.

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

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 $1,706.46 per year.

What solar power system size is right for my home?

The exact number of solar panels you need depends on your household energy needs and how much sunlight your roof gets. You can take a look at your energy bills for the past year to get an idea of the solar system size you'll need. The average household has to get between 20 and 35 panels to cover their typical energy usage.

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.

Follow us