Price of Array Photovoltaic Panels

How much does a solar panel cost?

Today’s premium monocrystalline solar panels typically cost between 30 and 50 cents per Watt, putting the price of a single 400-watt solar panel between $120 to $200 depending on how you buy it. Less efficient polycrystalline panels are typically cheaper at $0.25 per Watt. The cost of a solar panel also depends on how you buy it.

How much does a commercial solar system cost?

Commercial solar installations are a great way for companies to lower energy costs. Generally, installing solar panels on businesses costs a bit less per watt because the systems are larger, but the total costs will be higher. In 2025, the average cost for commercial solar panels is just about $2.00 per watt.

How much does a solar PV installation cost per kilowatt?

The mean average cost per kilowatt of a small solar PV installation (0-4kW) is above £2,000 for the first time since these records began in 2013/14. Prices for larger solar installations (4-10kW) increased even more dramatically - by 31% since 2021/22.

How much does a solar system cost per watt?

A solar installation's “cost per watt” is a little like the “price per square foot” when you buy a house. It helps compare the value of solar energy systems in different sizes. Expect the cost per watt to be between $2 to $3. As of publishing, the average cost per watt is $2.84. Solar panels typically pay for themselves within 5 to 15 years.

How much does a solar inverter cost?

The cost of an inverter depends on its size and efficiency, but these devices typically cost between $1,000 and $3,000. 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.

Do used solar panels cost more than new?

Used solar panels will cost less than new solar panels, however, we wouldn’t recommend using them to power your home. Used solar panels likely won’t be covered under the manufacturer’s warranty, and you’ll sacrifice performance. How much do solar panels cost if I get multiple quotes?