Solar module prices in 2025 have stabilized after years of dramatic fluctuations, with global wholesale prices ranging from $0. 28 per watt depending on technology, origin, and regional market conditions. TOPCon Technology Dominance: TOPCon modules have. Average price of solar modules, expressed in US dollars per watt, adjusted for inflation. Global estimates are used before 2010; European market. Utility solar PV pricing refers to the cost of large-scale solar photovoltaic (PV) projects that supply electricity to the grid, typically operated by utilities or independent power producers (IPPs). These projects range from megawatt (MW) to gigawatt (GW) scale, making them the most cost-effective. 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. Every month we publish a current price index on the development of wholesale prices of solar modules. The high prices for M10 PERC and TOPCon cells is based mostly on those of Southeast Asian origins. Starting February 2025, the coverage of 210mm p-type cells will be discontinued.