3 FAQs about Regulating solar panel prices

How much does a solar panel cost?

Note: Costs are expressed in constant 2024 US$ per watt. Global estimates are used before 2010; European market benchmarks thereafter due to limited data availability. Solar photovoltaic module prices refer to the cost of the solar panel itself, and do not include installation or other system components.

How much does a solar module cost?

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.

Where did photovoltaic cost data come from?

Historical photovoltaic cost data between 1975 and 2003 has been taken from Nemet (2009), and between 2004 and 2009 from Farmer & Lafond (2016).

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