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. Global estimates are used before 2010; European market. . Right now, the national average sits around $2. The solar industry uses a standardized metric—dollars per watt ($/W)—that lets you compare quotes apples-to-apples regardless of system size. 41 per kWh and yet solar is very hard to sell here. No battery, it varies regionally, but on the cheapest end closer to $2. electricity supply with an installed capacity of just 3 gigawatts.
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The growth of solar power industries worldwide has been rapidly accelerated by the growth of the solar market in China. Chinese-produced photovoltaic cells have made the construction of new solar power projects much cheaper than in previous years. Domestic solar projects have also been heavily subsidized by the Chinese government, allowing for China's solar energy capacity to dramatically soar. As a result, they have become the leading country for solar energy, passing Germany's capacity in 20.
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