Solar Panel Costs in 2026 : It''s Usually Worth It
In this context, 60 watts would result in an initial panel purchase cost of approximately $42 to $90. Beyond the panel price,
As of publishing, the average cost per watt is $2.84. Most solar companies set the price according to the solar system's wattage. 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.
Some municipalities also add special inspection or net metering setup fees. Panel selection creates subtle cost differences. Standard monocrystalline panels in 2025 cost around $0.80–$1.00 per watt, while polycrystalline panels average $0.60–$0.75 per watt.
The average 6-kW residential solar panel installation is $17,852 before incentives. Learn about cost factors, financing options, tax breaks and more.
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.
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