According to Worldwatch Institute, in 2009 7.3 MW of new solar PV capacity was installed, a 20% increase form 2008 resulting in global PV capacity passing the 21 GW mark. In 2009 around 127 MW of concentrating solar thermal electric power plants came online. Europe has contributed the most significantly to PV demand, installing 72% of the 7.3 MW installed last year. According to the International Energy Agency this growth is set to continue and solar energy could account for 20-25% of global electricity production by 2050. By implementing the correct technologies and strategies, both PV and CSP could generate 9,000 TWh of electricity in 2050.
