For renewable sources, such as wind, solar and biomass, once capacity is installed, land use no longer increases. The more hours of the year one of these sources runs to generate electricity, the smaller is the land requirement per MWh (Fthenakis and Kim, 2009). While all renewable sources share the quality of having a constant land occupation over the time of generation, the variation in land requirements is greater both quantitatively and qualitatively than among nonrenewable sources.