The top renewables contributor was biomass and waste, at nearly 10%.
The Sun will become leading source of energy within 50 years, claims IEA
The International Energy Agency (IEA) is due to publish a projection that envisages solar energy as the world's leading power source within 50 years.
1 September 2011 22:00 GMT
Updated
25 November 2012 16:37 GMT
