Solar Panel Cost Guide in El Cajon, CA (2024 Update)

  • El Cajon Solar Installation Cost: $6,837
  • 25-Year Savings: $17,661
  • Payback Period: 7.4 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 El Cajon

See how much it might cost to go solar in El Cajon.

In El Cajon, solar panels cost about 3 per watt on average.The average El Cajon homeowner needs a 2.8-kilowatt system, which would cost about $6,837 with the federal tax credit, or $9,777 before the 0 tax credit is applied.

The prices above are just estimates to give you an idea of how much a solar energy system could cost. The actual cost of going solar can vary quite a bit depending on several factors, such as how many panels you need, your energy consumption and what solar installer you go with.But, after you've paid the upfront cost of installation, the savings for most homeowners is typically fruitful, with a net average savings of about $31,000 over 20 years on electricity bills.

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

Solar savings over time in El Cajon

YearReturn on Investment
1 years$-5,178
3 years$-1,860
5 years$1,459
7 years$4,777
9 years$8,095
11 years$11,413
13 years$14,731
15 years$18,050
17 years$21,368
19 years$24,686
21 years$28,004
23 years$31,322
25 years$34,641

Top Solar Installers in El Cajon

Many homeowners opt for a solar panel installer since trying to install solar panels on your own can be a labor-intensive endeavor. Solar companies offer key benefits that can help you get the most out of your investment, like warranties, monitoring and free repairs.

You can get a free quote from a local solar installer on how much your investment in solar could cost for your home. Here are some near you:

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 El Cajon

Factors that Affect Solar Panel Costs in El Cajon

There are several criteria that can affect your 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

The cost of solar panels varies by thousands of dollars due to some different factors. One of the notable factors is the system size, which is measured in kilowatts (kW). Solar power systems with greater efficiency or power generation use better technology and/or more equipment, both of which can raise costs. For each additional kilowatt you need, your cost can go up by about $3,470.There are a lot of different solar panel brands and the one you choose also changes the cost. Usually, the brands that have better efficiency tend to also be more expensive. Additionally, the type of equipment you’re looking to get can affect your total cost. If you only need panels, your system will be far less expensive than if you also need solar batteries or an electric vehicle charger.

Solar Financing Terms

Many homeowners find the average cost of solar in El Cajon to be prohibitively costly, even if the investment pays off over time. Fortunately, nearly every solar company in the area offers financing options. Solar loans substantially decrease upfront costs in most cases, but they also lead to higher prices over time due to interest.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 the amount of time it’ll take to pay back the loan.

Solar Panel Installation Company

The remaining significant cost factor you should consider is the installer you choose. Given the massive popularity of green energy solutions in El Cajon, you’ll have plenty of options to choose from, but each comes at various price points for labor and equipment.Some companies 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 cost more. It’s best to do some research and find a company that has the products, warranties and services you’re looking for and also fits within 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$33,9557.7 years
8 kW$3.54$19,821$45,6627.6 years
10 kW$3.47$24,290$57,5647.4 years
12 kW$3.40$28,565$69,6597.3 years
14 kW$3.33$32,646$81,9497.1 years
16 kW$3.26$36,532$94,4347.0 years
18 kW$3.19$40,224$107,1126.8 years
20 kW$3.12$43,722$119,9856.7 years

How to Save on Solar Panels

There are many solar installers to choose from, all of which offer different warranties, solar panel models and price points. To help you find the right company for you, here are some tips to keep in mind:

  • Solar Panel Brands: Not all solar companies offer the same brands of solar panels, so the brand and type of panel you want can play a substantial role in the company you choose.
  • Reputation: Companies that have been operating for many years likely have a high reputation. This is important because it ensures that it will not only see your solar project through, but will also provide adequate aftercare and customer support, such as part repairs and replacements.
  • Installation Process: One of the most important things to understand when adopting solar power is the installation process itself. Be sure to align on any details you need to know with your solar company, such as what permits you should acquire and how long the project will take.
  • Warranty: Warranties that provide coverage for defective panels and repairs over around 25 years are the gold standard in the business, and offering such a warranty is one mark of a good company.

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 El Cajon, CA Solar Cost FAQs

What is the average cost of installing solar panels in El Cajon?

This is a hard question to answer exactly, because the cost depends on a few different factors. Broadly 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 above-average energy consumption. On the flip side, you can spend less if you want a smaller solar panel system or less efficient solar panels.

Should I lease or buy solar panels in El Cajon?

Leasing solar panels can be an appealing choice, as it commonly comes with low or $0 upfront payments. The downside is that you won’t be able to save as much. If you lease, you don’t own the system, so you can’t claim any tax rebates and credits and your home value won’t increase. Buying solar panels is a better option if you want to maximize your savings.

Is switching to solar power worth it?

Solar panels can be a great investment for a majority of homeowners, but they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight and/or your power bills are already pretty low, solar panels might not be for you.

What solar power system size is right for my home?

The exact number of solar panels you need depends on your household energy usage and how much sunlight your roof gets. You can 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 account for 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.