10 Best Solar Companies in Walnut, CA

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Last Updated: February 25, 2025

Solar energy is becoming increasingly popular for homeowners in Walnut. A solar panel array can help you decrease your carbon footprint, add value to your property, and provide a dependable source of power. Switching to solar energy can reduce your monthly energy expenses and shrink your carbon output. Before you get started, you want to make sure you find a qualified installer. That’s why we’ve analyzed the options and compiled a guide to the most reputable solar installation companies in Walnut. These top installers consistently deliver high-quality and dependable services.

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Top 10 Best Solar Companies in Walnut

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

AWS Solar

AWS Solar Logo

Our Rating

User Rating

11750 Roscoe Blvd Ste 7, Sun Valley, CA 91352 (818) 484-3264 aws-solar.com

Reliable customer support

Clear pricing policy

Free quotes

Informative resources

Prompt service delivery

Services Offered

Battery storage
Skilled repairs
Solar panel upgrades
Grid-tied solar system
Cleaning and maintenance
Financing assistance
Permit assistance
Panel installation

SunSolar U.S.

SunSolar U.S. Logo

Our Rating

User Rating

16755 Von Karman Ave Suite 200, Irvine, CA 92606 (949) 242-0088 sunsolarus.com

Informative resources

Prompt service delivery

Free quotes

Clear pricing policy

Reliable customer support

Services Offered

Solar carports
Consultation
Permit assistance
Financing assistance
Battery storage
Panel installation

TENCO SOLAR

TENCO SOLAR Logo

Our Rating

User Rating

700 N Valley St Suite C, Anaheim, CA 92801 (888) 507-6937 tencosolar.net

Free quotes

Informative resources

Reliable customer support

Services Offered

Solar carports
Battery storage
Cleaning and maintenance
Permit assistance
Financing assistance
Skilled repairs
Panel installation
System decommissioning
Consultation

Go Green Solar

Go Green Solar Logo

Our Rating

User Rating

1630 S Sunkist St ste e, Anaheim, CA 92806 (866) 798-4435 gogreensolar.com

Clear pricing policy

Reliable customer support

Free quotes

Informative resources

Services Offered

Financing assistance
Consultation
Grid-tied solar system
Panel installation
Permit assistance
Battery storage
Off-grid solar systems
Cleaning and maintenance

SolarRepair

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Our Rating

User Rating

2834 Hamner Ave #464, Norco, CA 92860 (833) 757-4255 mysolarrepair.com

Informative resources

Prompt service delivery

Free quotes

Reliable customer support

Clear pricing policy

Services Offered

Skilled repairs
Cleaning and maintenance
Panel installation
Solar panel upgrades
Battery storage
Financing assistance

Aikyum Solar

Aikyum Solar Logo

Our Rating

User Rating

7256 Garden Grove Blvd, Westminster, CA 92683 (888) 989-8786 aikyum.com

Clear pricing policy

Informative resources

Prompt service delivery

Free quotes

Reliable customer support

Services Offered

Cleaning and maintenance
Financing assistance
Battery storage
Permit assistance
Panel installation
Tesla powerwall

Solar Discovery

Solar Discovery Logo

Our Rating

User Rating

8824 Shirley Ave # 10, Northridge, CA 91324 (844) 607-6527 solarpricediscovery.com

Reliable customer support

Clear pricing policy

Free quotes

Informative resources

Prompt service delivery

Services Offered

Skilled repairs
Cleaning and maintenance
Panel installation
Permit assistance
Financing assistance
Battery storage

CERVUS Solar & Construction

CERVUS Solar & Construction Logo

Our Rating

User Rating

19443 Soledad Canyon Rd Unit 105, Santa Clarita, CA 91351 (818) 294-8181 cervus-inc.com

Informative resources

Prompt service delivery

Free quotes

Reliable customer support

Clear pricing policy

Services Offered

Financing assistance
Consultation
Cleaning and maintenance
Skilled repairs
Panel installation
Battery storage

Option One Solar

Option One Solar Logo

Our Rating

User Rating

13581 John Glenn Rd A, Apple Valley, CA 92308 (855) 502-6363 optiononesolar.com

Clear pricing policy

Reliable customer support

Informative resources

Free quotes

Family-operated business

Services Offered

Skilled repairs
Battery storage
Panel installation
Consultation
Solar carports

Semper Solaris

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Our Rating

User Rating

1720 Howard Pl, Redlands, CA 92373 (909) 316-8606 sempersolaris.com

Informative resources

Free quotes

Clear pricing policy

Reliable customer support

Services Offered

Skilled repairs
Consultation
Cleaning and maintenance
Panel installation
Battery storage
Financing assistance
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on solar companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Solar Company

Going solar can be a great way to save money on electricity costs and help the environment by reducing your carbon footprint using renewable energy. Here are some crucial factors to consider when evaluating if a solar installer is reliable.

Check Licensing

It's imperative that your solar installer has the proper licensing. This help guarantee that the work is done correctly using current best installation practices. There are five distinct levels of solar contracting licenses in California: boilers, PV electrical, HVAC, thermal, and pool heating. For a contractor to earn a license, a contractor must take a highly comprehensive educational series, gain four years of experience as an apprentice or journeyman, and pass written exams.

Read Customer Reviews

Check review sites like TrustPilot, Google Reviews, and the Better Business Bureau (BBB) to see customer feedback about local solar companies. Detailed reviews can help you evaluate a company's reliability and customer service. Use caution with providers that have hardly any reviews or mostly negative ones.

Compare Multiple Quotes

Call three to five solar companies for free, itemized quotes. These quotes should outline all costs and specify the solar equipment included. Reviewing multiple quotes helps identify the best option that fits your budget.

Ask About the Warranty

Top-notch solar installations should have strong workmanship and performance warranties. A workmanship guarantee covers installation defects, such as poor wiring, poor alignment, or cracks in the panels. A performance warranty ensures a minimum energy output. Comprehensive warranties indicate that a solar company believes in its work.

Evaluate Financing and Incentives

Solar energy can help reduce your energy expenses. Be sure to weigh these aspects when determining the cost and value of solar panels.

  • Compare system purchase options: Homeowners can pay for solar panels upfront or finance payments over time with leases or loans. Be sure to verify key details like payment schedule, fees, annual percentage rate (APR), and what ownership means when financing solar panels.
  • Research federal and state tax credits: A 26% federal tax credit on total solar system costs is available through 2032. Many states provide incentives, too. The credits can lead to substantial savings for solar buyers.
  • Look into utility rebates: More financial incentives might be available from local power companies looking to motivate homeowners to install solar panels. Contact your local utility provider to find out rebate values and eligibility rules, so you can calculate your possible savings.

Cost of Solar Installation in Walnut

The cost of home solar panels in Walnut varies depending on several factors, including the area and generating capacity of your panel array and the type of solar technology being used. Generally speaking, a typical solar energy system will cost $3,470 per kilowatt, not including permit fees, preliminary work, or labor. Most solar systems in Walnut are 2.8 kilowatts, and the typical Walnut homeowners spends $6,920 after accounting for federal tax refunds. Some homeowners may prefer to lease solar panels and reduce upfront costs.

Walnut Solar Incentives Guide

Incentive Type: PACE Financing

Website: wrcog.us

Incentive Amount:

Eligible products can be financed for up to 25 years, depending on the useful life of the eligible product.
Minimum financing: $5,000
The financing may not exceed fifteen percent (15%) of the market value of the property, up to the first seven hundred thousand dollars ($700,000) of the property’s market value, and ten percent (10%) of the remaining value of the Property above seven hundred thousand dollars ($700,000) minus any PACE assessment on the propertyThe total amount of any annual property taxes and assessments shall not exceed five percent (5%) of the property's fair market value, determined at the time program financing is approved.

Incentive Type: Rebate Program

Website: gosolarcalifornia.ca.gov

Incentive Amount:

Step 1 Incentive Rates (contact utility to determine current incentive levels):
Single Family Residential Incentives:
Systems that displace natural gas: $29.85 per estimated therm displaced
Systems that displace electricity or propane: Funding has been exhausted
Commercial/Multifamily Incentives:
Systems that displace natural gas: $20.19 per estimated therm displaced
Systems that displace electricity or propane: $0.42 per estimated kWh displaced *** Note, funding has been exhausted in this category for SCE and PG&E
Solar Pool heating: $5.00 per estimated therm displaced

Incentive Type: Feed-in Tariff

Website: ladwp.com

Incentive Amount:

$0.17/kWh adjusted by a time of delivery multiplier
Base price will step down over time as certain MW goals are met

Incentive Type: Rebate Program

Website: selfgenca.com

Incentive Amount:

For projects 30 kW or larger, 50% of incentive will be received up-front; 50% will be received based on actual kWh production over the first 5 years. For projects under 30kW, 100% of the incentive will be paid up front.
Incentives will step down over time. See below for incentive amounts.

Incentive Type: Property Tax Incentive

Website: boe.ca.gov

Incentive Amount:

100% of system value; 75% of system value exemption for dual-use equipment

Incentive Type: PACE Financing

Incentive Amount:

Locally determined

Incentive Type: Feed-in Tariff

Website: cpuc.ca.gov

Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

Frequently Asked Questions About Solar in Walnut, CA

Generally speaking, a solar photovoltaic (PV) array can be used to power any household appliance or system that uses electricity. In the simplest case, you can use a solar water heater.

With home solar panels, you can save money on your energy bill, lower your home's carbon footprint, and gain additional energy independence.

It depends on your location and the kind of panels you plan to use. With the winter months in California being very mild, you have significant leeway to install your panels, though they won't achieve peak performance until summer arrives.

Yes. The grid in Walnut already uses a large share of renewable energy sources, and you may be able to sell your excess generated energy to your utility for additional cost savings.

Generally speaking, your energy bills will significantly decrease after you install solar panels. This is because you're using the energy you generate for free rather than buying it from your power company. In Walnut, the average amount someone can save is $751 per year. With net metering programs offered by many utilities, you could ultimately make a profit from your system when your payback period is done.

Yes, solar panels will still be able to generate energy during a grid outage. To ensure that your solar system will keep working during a power outage, make sure to choose a quality solar provider that offers battery backup systems or emergency generators.

The answer depends on your specific needs and goals. For a typical home, monocrystalline solar panels are the most efficient for Walnut homes. However, if lowering cost is your top priority, then you could thin-film or polycrystalline solar panels. When you're gathering estimates, make sure to ask about the brand names and models of solar panels a contractor offers and the benefits and drawbacks of each.

Other Walnut, CA Home Services

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