Solar Panel Cost Guide in Diamond Bar, CA (2024 Update)

  • Diamond Bar 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 Diamond Bar

Find out what the average cost of a solar system is in Diamond Bar.

The national average cost of solar panels is $2.66 per watt, but in Diamond Bar it’s 3 per watt.The average solar panel system size in Diamond Bar is around 2.8 kilowatts, meaning a cost of about $6,920 for a solar installation, or $9,896 before the 0 federal solar tax credit is applied.

These figures are just averages, and the cost of going solar for you will vary based on the amount of energy your home requires and what company you choose to go with.With typical savings of about $25,000 on power bills over 20 years, many homeowners in Diamond Bar find going solar can be quite rewarding.

You can click the button below to get connected with a top solar installer in Diamond Bar that can help you get a more accurate cost estimate for your home.

Solar savings over time in Diamond Bar

Year Return 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 Diamond Bar

Although you can install solar panels by yourself, it requires extra time and expertise. That's one of the reasons most people choose to go with a solar panel installer. Local solar installers can also help you optimize your return on investment by assisting with any local incentives you can take advantage of and by offering warranties and repairs.

If you're looking for a solar company in Diamond Bar, we've put together 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 Diamond Bar

Factors that Affect Solar Panel Costs in Diamond Bar

The cost of installing a solar system in Diamond Bar 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 your home needs, and other factors include the equipment you choose, financing options and the solar company you choose.

Solar Equipment

The size of the solar energy system you need for your home, which is measured in kilowatts, is the most significant cost factor to consider. For every additional kilowatt you need, you can expect your total to increase by about $3,470. The type of solar equipment you choose can increase or decrease your cost by thousands or even tens of thousands of dollars. If you get the most efficient solar panel brands, you’ll end up paying more upfront than if you opted for the most affordable panels. However, more efficient panels could save you more over time on your power bills. Additionally, add-on products, like solar batteries, can bring your total well above the Diamond Bar average.

Solar Financing Terms

Most solar companies in Diamond Bar have solar loans, which reduce your upfront costs of installing solar.You’ll have to consider the long-term cost of loans, 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 principal cost. Making a larger down payment or getting a solar loan with a low interest rate could reduce your costs remarkably.

Solar Panel Installation Company

The solar installer you hire to handle your switch to renewable energy can have an effect on your total costs. There are about 3 solar panel companies operating throughout Diamond Bar, and each can charge different amounts for labor and equipment.Larger national companies typically have lower costs, but some local companies undercut them by offering sales and discounts. While the smaller companies might not have specific equipment options like Tesla Powerwall batteries or add-on services like electric vehicle charger installation, they might be cheaper overall.

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 $24,370 9.6 years
8 kW $3.54 $19,821 $32,882 9.4 years
10 kW $3.47 $24,290 $41,589 9.2 years
12 kW $3.40 $28,565 $50,489 9.0 years
14 kW $3.33 $32,646 $59,584 8.8 years
16 kW $3.26 $36,532 $68,874 8.7 years
18 kW $3.19 $40,224 $78,357 8.5 years
20 kW $3.12 $43,722 $88,035 8.3 years

How to Save on Solar Panels

The company that does your system 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:

  • Installation Process: When making the switch to solar power, it’s crucial to keep an open line of communication with your solar panel company. Confirm that you understand how the installation process works and the project timeline.
  • Contract: When looking over 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 part breaking or the company going out of business.
  • Solar Panel Brands: The type of solar panel you want plays a part in which company you should go with, since different companies have access to different panels.
  • Reputation: Make sure your solar panel installer has a good reputation by confirming it has certifications and licenses, checking its work history and reading reviews by previous customers and solar experts like EcoWatch.

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 Diamond Bar, CA Solar Cost FAQs

What is the average cost of installing solar panels in Diamond Bar?

This is a difficult 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 cost more if you want other solar equipment or higher quality panels, or if you have above-average energy needs. On the other hand, you can spend less if you want a smaller solar panel system or cheaper solar panels.

Can you get solar panels for free in Diamond Bar?

You can’t get solar panels for free in Diamond Bar. However, you may still be able to get 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.

Can solar panels significantly reduce my power bills?

It is possible to eliminate your electricity bills with solar panels, but for most homeowners throughout Diamond Bar, that will require at least a 10-kW system. Not all homes will have the roof space for that size system, so you’ll want to check with a local solar installer to see how many panels can fit on your roof.

How often do you have to replace solar panels?

Even though 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 their energy production will have decreased significantly after that point. You can choose 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.

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