A single solar panel costs between $120-$315 for the equipment only, or $1,000-$1,200 when professionally installed. Most homeowners spend between $12,600 and $33,376 to install a complete residential solar system in 2026, with the national average at $19,873 before incentives. Your actual cost depends on your home's energy needs, roof characteristics, location and other factors, all of which we'll break down in. System purchases offer dramatic savings: Buying panels as part of a complete solar system costs 40-65% less per panel ($0. 50/watt) compared to individual retail purchases ($0. Department of. Average price of solar modules, expressed in US dollars per watt, adjusted for inflation. Data source: IRENA (2025); Nemet (2009); Farmer and Lafond (2016) – Learn more about this data Note: Costs are expressed in constant 2024 US$ per watt. While that price tag seems steep, the electricity. When you buy your own solar kit online, you'll easily save 30-50% or more! All backed by free lifetime customer support when you source a complete solar panel kit from Shop Solar -- get everything you need to go solar delivered straight to your door! All solar kits include all.
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