Solar (photovoltaic) panel prices
IRENA presents solar photovoltaic module prices for a number of different technologies. Here we use the average yearly price for technologies ''Thin film a-Si/u-Si or
One of the biggest cost factors for your solar panel installation is the size of the system you have installed. System size is measured in kilowatts (kW) and is determined by household energy consumption. The average cost per watt is $3.04, but larger systems often have a lower cost per watt.
If you just need a few panels for a small do-it-yourself solar project, expect to pay around $200 to $350 per panel (between $0.80 and $1.40 per watt). Note: The table below doesn't include the cost of a solar storage battery, which can add anywhere from $7,000 to $18,000 to your total solar system costs.
Mounting system: This is what holds rooftop solar panels in place. Costs vary depending on the type of solar installation, but it generally costs between 7 and 20 cents per watt. Electrical wiring and hardware: This includes the wiring, switches and circuit breakers required to connect the solar panel system to your home's electrical system.
Switch to solar with a system built for you. Solar panels generate “free” electricity, but installing a system still costs money. A typical American household needs a 10-kilowatt (kW) system to adequately power their home, which costs $28,241 in 2025. That price effectively drops to $19,873 after considering the full federal solar tax credit.
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