Renewables global status report: 2009 update

Since 2004, when the Renewables Global Status Report was first launched, many indicators of renewable energy have shown dramatic gains. Annual renewable energy investment has increased fourfold to reach $120 billion in 2008. In the four years from end-2004 to end-2008, solar photovoltaic (PV) capacity increased sixfold to more than 16 gigawatts (GW), wind power capacity increased 250 percent to 121 GW, and total power capacity from new renewables increased 75 percent to 280 GW, including significant gains in small hydro, geothermal, and biomass power generation. During the same period, solar heating capacity doubled to 145 gigawatts-thermal (GWth), while biodiesel production increased sixfold to 12 billion liters per year and ethanol production doubled to 67 billion liters per year.