Solar Panels in
Napa County, CA

Updated 9/18/2021

How much do solar panels cost in Napa County, CA in 2021?

As of September 2021, the average solar panel cost in Napa County, CA is $3.02/W. Given a solar panel system size of 5 kilowatts (kW), an average solar installation in Napa County, CA ranges in cost from $12,835 to $17,365, with the average gross price for solar in Napa County, CA coming in at $15,100. After accounting for the 26% Federal Investment Tax Credit (ITC) and other state and local solar incentives, the net price you'll pay for solar can fall by thousands of dollars.

Importantly, these costs are typical for solar shoppers comparing solar quotes on the EnergySage Marketplace. When you compare quotes for solar panels on EnergySage's competitive solar marketplace, you can expect to see prices up to 20% lower than working with a single solar company.

Average solar panel cost by system size in Napa County, CA

System Size System Cost System Cost (after ITC)
3 kW $9,060 $6,704
4 kW $12,080 $8,939
5 kW $15,100 $11,174
6 kW $18,120 $13,409
7 kW $21,140 $15,644
8 kW $24,160 $17,878
9 kW $27,180 $20,113
10 kW $30,200 $22,348

2021 average solar panel cost graph in Napa County, CA

for a 5kW system

Great Price
$12,835 or less
Market Average
$15,100
Above Market
$17,365 or more

Solar installation costs do not include the 26% Federal Investment Tax Credit or local incentives. Learn more about local CA incentives, tax credits & rebates.

Payback Period

6.04 Years

20-Year Savings

$65,614

Cost per Watt

$3.02

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