Original: In 2008 , about 19 % of global final energy consumption came from renewables , with 13 % coming from traditional biomass , which is mainly used for heating , and 3.2 % from hydroelectricity .
Simplified: At the end of 2009 , worldwide wind farm capacity was 157,900 megawatts ( MW ) , representing an increase of 31 percent during the year , Lars Kroldrup .