The price of residential solar has dropped 64% over the past decade due in large part to falling hardware costs. What would have cost $30,000 or more for a standard 10-kilowatt system in the early ...

In 2025, large-scale U.S. utility solar costs range from $0.95 to $1.23 per watt (DC) for a new, single-axis tracking system, with the final cost depending heavily on project size, location, and ...