In 2025, solar cell prices for residential users range from $2. 80 per watt, but this can vary by the location and size of the system, as well as the complexity of the installation. Thus, a 6 kW solar cell system can cost between $16,800 and $22,800 even before. Wondering how much you'll actually pay for Trinity photovoltaic panels this year? Let's cut through the confusion. So, what. Average price of solar modules, expressed in US dollars per watt, adjusted for inflation. Data source: IRENA (2025); Nemet (2009); Farmer and Lafond (2016) – Learn more about this data Note: Costs are expressed in constant 2024 US$ per watt. The high prices for M10 PERC and TOPCon cells is based mostly on those of Southeast Asian origins. If you have already registered but have not activated your account.