Solar Panel Cost Guide in La Mesa, CA (2025 Update)

  • La Mesa 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 January 24, 2025

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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 La Mesa

Let’s take a look at the average cost of solar panels in La Mesa.

While the national average of solar panels is $2.66 per watt, solar panels in La Mesa typically cost around 3.The average solar panel system size in La Mesa is around 2.8 kilowatts, meaning a cost of about $6,837 for a solar installation, or $9,777 before the 0 federal solar tax credit is applied.

These figures are just estimates, and your own solar costs will most likely look different based on your specific situation and what company you want to go with.But, once you've paid the upfront cost of installation, the ROI for most homeowners is usually rewarding, with a net average savings of about $31,000 over 20 years on energy bills.

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

Solar savings over time in La Mesa

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 La Mesa

Many homeowners opt for a solar panel installer since trying to put up solar panels by yourself can be a labor-intensive endeavor. Companies can also offer access to quality options of the best solar panels and help you decide which one will be right for you.

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

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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 La Mesa

Factors that Affect Solar Panel Costs in La Mesa

Cost is often one of the most important factors for homeowners who are considering investing in solar. There are a few key factors that will push your cost above or below the average in La Mesa: solar equipment and system size, financing options and the solar installation company you choose. We’ll go over each of these briefly below.

Solar Equipment

System size, which is measured in kilowatts, is one of the largest factors that influences the overall cost of going solar. That’s why it’s important to accurately ascertain the size of the solar energy system needed for your home by figuring out your average energy use.The model of solar panels and equipment you choose is another factor that will substantially impact costs. Solar panels that are more efficient, like monocrystalline panels, tend to be more costly. Moreover, solar equipment goes beyond 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 looking into a solar system that falls within your budget.

Solar Financing Terms

If paying for solar panels in cash is difficult, solar loans are a solid choice because they reduce your upfront costs and let you pay for your system over a term of, on average, between five and seven years.However, the interest on solar loans also increases your all-in costs, so it’s important to consider that as well. You can always lower the total you pay in interest and sometimes even your APR by putting more money down.

Solar Panel Installation Company

The solar installer you pick will affect your total cost to make the switch to solar energy. Different companies will charge different amounts for the equipment and labor.You may come across national solar installers that have lower prices because of their larger brand name and access to bulk equipment prices, or you might see small, local installation companies offering deals or specials to compete with those larger companies.

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 a lot of companies available in La Mesa, and some homeowners feel overwhelmed considering their options. Selecting the right company for you can be challenging, so here are some tips to help you decide:

  • Reputation: Your solar installer should have a sound reputation as a company and have demonstrated expertise in the field. Two 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 good reviews from past customers.
  • Installation Process: Homeowners should understand how exactly the installation process will be carried out, as well as important factors like the project timeline.
  • Warranty: A comprehensive, 25-year warranty can help keep your solar panels running for years to come and save you money on repairs and maintenance.
  • Solar Panel Brands: Not all solar companies carry the same brands of solar panels, so the brand and type of panel you want can play a big role in the company you choose.
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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 La Mesa, CA Solar Cost FAQs

What is the average cost of installing solar panels in La Mesa?

This is a difficult question to answer precisely, because the cost depends on a variety of 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 other solar equipment or more efficient panels, or if you have above-average energy needs. Conversely, you can spend less if you go with a smaller solar panel system or less efficient solar panels.

Should I lease or buy solar panels in La Mesa?

Leasing solar panels can be an appealing choice, as it typically 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 incentives and your home value won’t increase. Buying solar panels is a better way to go if you want to get the most savings.

Is it worth going solar in La Mesa?

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 enough sunlight and/or your energy bills are already reasonably low, solar panels might not be for you.

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 opt to replace them after having them for that long or you can continue to use 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.