Annual patents filed for renewable energy technologies, World

Data only includes energy source technologies, and excludes technologies such as energy storage or transport. Figures in recent years are subject to a time lag;submitted patents may not yet be reflected in the data.

2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021Solar photovoltaicSolar thermalSolar PV-thermal hybridWindHydropowerMarine and tidalBioenergyGeothermal