As of 2024, the average cost of commercial solar panels in California is $2.50 per watt, with a range of $2.20 to $2.80 per watt, depending on the system size and installer.
The California Public Utilities Commission reports that the average cost of commercial solar panels in California decreased by 10% in 2024, with an average cost per watt of $2.40.
Based on data from over 1,000 solar installations in California, the average cost per watt of commercial solar panels in 2024 is $2.55, with top-rated installers offering prices as low as $2.30 per watt.
A new report by the National Renewable Energy Laboratory finds that the cost of commercial solar energy in California has fallen to $2.20 per watt in 2024, making it more competitive with fossil fuels.
A new report by Wood Mackenzie predicts that commercial solar installations in California will increase by 15% in 2024, driven by declining costs and favorable policies, with an average cost per watt of $2.45.
Use our solar panel cost calculator to estimate the cost of a commercial solar system in California, with prices starting at $2.35 per watt for a 100 kW system.
The Database of State Incentives for Renewables & Efficiency provides an overview of commercial solar incentives in California, including the federal tax credit and state rebates, which can reduce the cost per watt of solar panels by up to $0.50.
The Solar Energy Industries Association reports that the average cost of commercial solar panels in California is $2.50 per watt, compared to the national average of $2.70 per watt, with California offering more favorable policies and lower costs.