The price of solar panels fell steadily for 40 years, interrupted in 2004 when high subsidies in Germany drastically increased demand there and greatly increased the price of purified silicon (which is used in computer chips as well as solar panels).
Cena solarnih panela je kontinuirano padala tokom zadnjih 40 godina, do 2004. kada su visoke subvencije u Nemačkoj tamo drastično povećale potražnju, i značajno povećale cenu prečišćenog silicijuma (koji se koristi i u računarskim čipovima).