Solar Panel Cost Guide in Foster City, CA (2024 Update)

  • Foster City Solar Installation Cost: $7,454
  • 25-Year Savings: $20,467
  • Payback Period: 7.1 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated June 24, 2024

Why you can trust EcoWatch

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 Foster City

Find out what the average cost of solar panels are in Foster City.

The average cost of a solar panel system in Foster City is 3 per watt.Since a 3.1-kW system is needed to cover the energy needs of a typical home in Foster City, the average price of going solar will be about $7,454 after claiming the federal solar tax credit of 0.

Keep in mind that the numbers above are only averages. The price you’ll pay for solar may look quite different based on your household energy needs, the type of equipment you want to get, your solar contractor and more.For most homeowners, the upfront investment in solar panels is worth paying. On average you could be looking at about $33,000 in savings on utility bills over 20 years.

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

Solar savings over time in Foster City

YearReturn on Investment
1 years$-5,916
3 years$-2,840
5 years$236
7 years$3,312
9 years$6,388
11 years$9,463
13 years$12,539
15 years$15,615
17 years$18,691
19 years$21,767
21 years$24,842
23 years$27,918
25 years$30,994

Top Solar Installers in Foster City

Many homeowners opt for a solar panel installer since figuring out how to install solar panels on your own can be challenging. Some solar companies, especially local ones, can help you make the most of incentives in Foster City, therefore optimizing your ROI.

If you’d like to start using solar energy but still aren’t sure which solar installer to go with, here are our recommendations for providers nearby:

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

Best Technology

Tesla Energy

★★★★★
3.2
  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

See all of the solar companies in Foster City

Factors that Affect Solar Panel Costs in Foster City

Cost is typically one of the most important factors for homeowners who want to invest in solar. There are a few major factors that will push your cost above or below the average in Foster City: solar equipment and system size, financing options and the solar installation company you choose. We’ll cover each of these briefly below.

Solar Equipment

The cost of solar panels varies by thousands of dollars due to some different factors. One of the key factors is the system size, which is measured in kilowatts (kW). Solar power systems with higher 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.The kind of solar panels and equipment you get is another factor that will substantially affect costs. Solar panels that have higher efficiency, like monocrystalline panels, tend to come at a higher price. Moreover, solar equipment is more than just the solar panels themselves. You’ll also need to consider 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

Many homeowners find the average cost of solar in Foster City to be prohibitively steep, even if the investment pays off over time. Fortunately, almost every solar company in the area offers financing options. Solar loans substantially decrease upfront costs for most homeowners, but they also lead to higher prices over time due to interest.It’s a good idea to include the interest you’ll pay in your final cost estimate. If you can afford to put more money down upfront, you can reduce your total costs and the amount of time it’ll take to pay back the loan.

Solar Panel Installation Company

The solar panel installation company you pick will play a role in your total cost to adopt solar energy. Different companies will bill different amounts for the equipment and labor.Larger national companies generally have lower costs, but some local companies keep up with them by promoting sales and discounts. While the smaller companies might not have specific equipment options like Tesla Powerwall batteries or extra services like electric car charger installation, they might be cheaper overall.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.61$15,157$36,3287.4 years
8 kW$3.54$19,821$48,8267.2 years
10 kW$3.47$24,290$61,5187.1 years
12 kW$3.40$28,565$74,4046.9 years
14 kW$3.33$32,646$87,4856.8 years
16 kW$3.26$36,532$100,7606.7 years
18 kW$3.19$40,224$114,2306.5 years
20 kW$3.12$43,722$127,8946.4 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 pick the right company for you, here are some tips to keep in mind:

  • Solar Panel Brands: Homeowners will have different preferences for panels based on their roof configurations and energy needs. Although there are many options for which type 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 offerings before making your decision.
  • Installation Process: Make sure you’re aligned with the company regarding how the installation process will go and what you need to do before your solar panels are installed, such as updating or replacing your electrical system or roof.
  • Warranty: If you’re concerned about the endurance of your solar panels, verifying that your installer offers a 25-year, all-inclusive warranty can give you some peace of mind.
  • Reputation: Companies that have been in business 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 quality aftercare and customer support, such as part repairs and replacements.

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

Best Technology

Tesla Energy

★★★★★
3.2
  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch's Foster City, CA Solar Cost FAQs

How much does it cost to install solar panels in Foster City?

The average cost of solar panels in Foster City is about $17,350 for a 5-kW system and $34,700 for a 10-kW system before the ITC, but the real cost will depend on certain factors like the model of solar panels you want, what size system you need and how much energy you use.

Can you get solar panels for free in Foster City?

You can’t get solar panels for free in Foster City. 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.

Is it worth going solar in Foster City?

Whether or not solar panels are worth it depends on a variety of factors like how much you pay for electricity and how much direct sunlight your roof gets.

How often do you have to replace solar panels?

Although the average lifespan of solar panels is 25 to 30 years, that doesn't mean they stop working completely at that time. What this means is their energy production will have decreased significantly after that point. You can 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.