This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Price history of silicon PV cells since .svg history chart of crystalline silicon solar cell in US per watt since own based on Hanjin's version en espaol amended with average sales prices for and Original source data economist Bloomberg New Energy Finance webcitation org archived based on average sales price webcitation