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

  • Walnut Solar Installation Cost: $6,920
  • 25-Year Savings: $13,325
  • Payback Period: 9.2 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 Walnut

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

In Walnut, solar panels cost about 3 per watt on average.Since a 2.8-kW system is needed to cover the energy costs of a typical home in Walnut, the average price of going solar will be about $6,920 after claiming the federal solar tax credit of 0.

These figures are just estimates, and the cost of going solar for you may vary based on the amount of energy your home requires and what company you want to go with.Even with the large upfront cost, the average Walnut homeowner can save about $25,000 on their energy bills over 20 years, which is one of the perks of solar.

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

Solar savings over time in Walnut

YearReturn on Investment
1 years$-5,736
3 years$-3,366
5 years$-997
7 years$1,373
9 years$3,742
11 years$6,112
13 years$8,481
15 years$10,851
17 years$13,220
19 years$15,590
21 years$17,959
23 years$20,329
25 years$22,698

Top Solar Installers in Walnut

DIY solar panel installation is a possibility, but it's an undertaking that can take a lot of hard work. Going with a solar panel installer can make swapping over to solar power much easier. Plus, if you’d like to maximize your investment in solar energy, going with a solar installer can help with that as well. Different providers can offer warranties, expertise on installation and sometimes even information on local incentives and net metering programs.

You can work with a local solar installer to get a free quote on how much your investment in solar could cost for your home. Here are some nearby:

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 Walnut

Factors that Affect Solar Panel Costs in Walnut

Although the average cost of a solar system in Walnut is $6,920, your actual cost may be higher or lower than that. There are quite a few factors that can have a sizable impact on the cost of a solar panel installation. Below are some of the more crucial things to consider.

Solar Equipment

The size of the solar energy system you need for your home, which is measured in kilowatts, is the most important cost factor to consider. For every additional kilowatt you need, your total will most likely increase by about $3,470. The brand of solar panels and equipment you want is another factor that will significantly affect costs. Solar panels that have higher efficiency, like monocrystalline panels, tend to cost more. Plus, solar equipment consists of more than just the solar panels themselves. You’ll also need to make decisions about the kind of racks used to mount the panels, inverters, solar batteries, etc. It’s important to take all of this into consideration when searching for a solar system that’s in your budget.

Solar Financing Terms

For some homeowners, paying for solar panels out of pocket can be difficult. Solar loans are provided by most installers in Walnut, which can bring down, or in some cases eliminate, your upfront costs to make solar more accessible.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 original cost. Making a larger down payment or getting a solar loan with a low APR could reduce your costs considerably.

Solar Panel Installation Company

Lastly, the company you choose to install your solar panels can influence how much you pay. Walnut’s solar companies all have different labor costs and add varying upcharges to equipment. Companies that only sell products with high efficiency and therefore a higher price point — like Maxeon solar panels from SunPower or Tesla Powerwall batteries — so choosing those installers will generally come at a higher cost. It’s best to do some research and find a company that provides the products, warranties and services you want and also fit into your budget.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.61$15,157$24,3709.6 years
8 kW$3.54$19,821$32,8829.4 years
10 kW$3.47$24,290$41,5899.2 years
12 kW$3.40$28,565$50,4899.0 years
14 kW$3.33$32,646$59,5848.8 years
16 kW$3.26$36,532$68,8748.7 years
18 kW$3.19$40,224$78,3578.5 years
20 kW$3.12$43,722$88,0358.3 years

How to Save on Solar Panels

The solar company you choose will affect not only your overall costs, but also the types of solar panel brands, warranties, and other equipment you can get. When choosing a solar company, there are some important things you should consider, such as:

  • Installation Process: Make sure you’re on the same page with the installer in regard to how the installation process will go and what needs to be done before your solar panels are installed, such as updating your electrical system or roof.
  • Contract: Read the contract terms closely to make sure you understand how much it will cost, completion timeline incentives and warranties.
  • Warranty: If you care about the longevity of your solar panel system, ensuring your company offers a 25-year, all-inclusive warranty can give you some peace of mind.
  • Solar Panel Brands: Homeowners will have different preferences for panels based on their roof configurations and how much efficiency they need. While there are many options for which brand of solar panel you can get, not every company will have access to the exact one you may want or need, so be sure to peruse their list of options before deciding.

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 Walnut, CA Solar Cost FAQs

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

This is a hard question to answer precisely, because the cost depends on a few different 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 extra solar equipment or higher quality panels, or if you have higher-than-average energy usage. On the flip side, you can spend less if you want a smaller solar panel system or less expensive solar panels.

Can you get solar panels for free in Walnut?

You can’t get solar panels for free in Walnut. However, you may still be able to install them on a lower budget. You can lease solar panels for a low upfront cost or, if you’d rather own your solar panels, you can finance them with a solar loan.

Does Walnut have a net metering program?

Most states have net metering programs of some kind. Through these, you can either get paid for the extra power your system produces or or receive credits to put toward future electricity bills. Currently there are just three states that don’t have any net metering laws: Alabama, Tennessee and South Dakota.

How long do solar panels last in Walnut?

On average, solar panels can last about 25 to 30 years. Some even last up to 50 years, but their efficiency goes down by about 0.8% each year. You can choose to replace them sooner if you want to maintain a higher amount of energy production.

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.