In 2025, the average cost of solar panel installations in the U. This means a 4 kW system costs roughly USD 11,360, and a 10 kW system costs about USD 28,400 before tax credits. 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. Global estimates are used before 2010; European market. . Solar panel costs range from $16,600 to $20,500 for the average 6. . Price Stabilization After Volatility: Solar module prices have stabilized in 2025 with global wholesale prices ranging from $0. Department of Energy (DOE) Solar Energy Technologies Office (SETO) and its national laboratory partners analyze cost data for U. solar photovoltaic (PV) systems to develop cost benchmarks. These benchmarks help measure progress toward goals for reducing solar electricity costs. .
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