Solar Panel Cost Guide in Portola Valley, CA (2024 Update)

  • Portola Valley Solar Installation Cost: $7,454
  • 25-Year Savings: $18,654
  • Payback Period: 7.6 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 Portola Valley

Find out what the average cost of installing solar panels is in Portola Valley.

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

These figures are only averages, and how much solar costs for you will look different based on your energy needs and what company you go with.But, once you've paid the upfront cost of installation, the payback for most homeowners is typically rewarding, with a net average savings of about $30,000 over 20 years on utility bills.

You can click the button below to get connected with a pre-vetted solar installer in Portola Valley for a quote for your home.

Solar savings over time in Portola Valley

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 Portola Valley

Although it's possible to install solar panels yourself, it requires extra time and know-how. That's one of the reasons the majority of homeowners choose a solar panel installer. Local solar installers can also help you optimize your return on investment by walking you through any local incentives and by providing warranties and repairs.

There are various licensed solar professionals that can install solar panels for you. Here are our suggestions:

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 Portola Valley

Factors that Affect Solar Panel Costs in Portola Valley

Cost is typically one of the most important factors for homeowners who are considering investing in solar. There are a few key factors that affect your total cost in Portola Valley: solar equipment and system size, financing options and the solar installation company you choose. We’ll discuss each of these briefly below.

Solar Equipment

The cost of solar panel systems 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 better 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 want is another factor that will substantially impact costs. Solar panels that have higher efficiency, like monocrystalline panels, tend to be more pricey. Moreover, solar equipment is more than just the solar panels themselves. You’ll also need to think 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 searching for a solar system that falls within your budget.

Solar Financing Terms

For some homeowners, paying for a solar system out of pocket can be financially overwhelming. Solar loans are provided by most installers in Portola Valley, which can reduce, or in some cases completely eliminate, your upfront costs to make solar more affordable.However, the interest on solar loans also adds to your all-in costs, so it’s vital to take that into consideration as well. You can always lower the total you pay in interest and possibly even your APR by putting more money down.

Solar Panel Installation Company

The remaining significant cost factor you should keep in mind is the installer you choose. Given the massive popularity of green energy solutions in Portola Valley, you’ll have many options to choose from, but each comes at varying price points for labor and equipment.Additionally, some companies in Portola Valley know more about local solar incentives and can help you take advantage of additional rebates or tax exemptions. Though, they may charge more for that service. Even if they cost more upfront, they could end up saving you more money in the long run.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.61$15,157$32,7847.9 years
8 kW$3.54$19,821$44,1007.8 years
10 kW$3.47$24,290$55,6117.6 years
12 kW$3.40$28,565$67,3167.4 years
14 kW$3.33$32,646$79,2157.3 years
16 kW$3.26$36,532$91,3097.1 years
18 kW$3.19$40,224$103,5977.0 years
20 kW$3.12$43,722$116,0806.8 years

How to Save on Solar Panels

Since the brand of solar panels and the company you choose has an impact on your costs and your system’s durability and efficiency, it’s important to select the right ones for you. Here are some tips to keep in mind to help with your decision:

  • Contract: Even though reading through a contract can take a lot of time, it’s important to do it carefully so you can make sure you understand what services your solar company will provide and how part repairs and replacements will be handled.
  • Warranty: If you’re worried about the durability of your solar system, ensuring your company offers a 25-year, all-inclusive warranty can help put you at ease.
  • 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 service, such as part repairs and replacements.
  • Solar Panel Brands: The type of solar panel you want to install plays a role in which installer you should choose, since different companies provide different panels.

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 Portola Valley, CA Solar Cost FAQs

How much does it cost to install solar panels in Portola Valley?

The average cost of solar panels in Portola Valley 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 such as the kind of solar panels you want, what size system you need and how much energy you consume.

Is cost the most important thing to think about when buying solar panels?

Cost is certainly one of the most important things to bear in mind when buying solar panels, but other important factors include efficiency, durability, and quality.

Do solar panels increase your property value?

Solar panels can increase your home value significantly as long as you buy or finance your panels and don’t opt for a solar lease or power purchase agreement (PPA). According to research done by Zillow, the average home value increases by about 4.1% with a solar installation."

How long do solar panels last in Portola Valley?

Even though 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 how much energy they produce will have decreased significantly after that point. You can decide to replace them after having 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.