The U.S. Energy Information Administration recently released its "International Energy Outlook 2011" report, predicting big growth for green energy by 2035.

Renewables will be the world's fastest-growing sources of energy, at 2.8 percent annually, the reports says. This means green sources will generate about 15 percent of the world's energy by 2035, as renewable sources of electricity - including biofuel liquids, hydropower and other renewables - should about double from 2008 levels.

Worldwide energy consumption is predicted to rise 53 percent by 2035, with half of that growth occurring in China and India.

Both China and India scored highly on the recent Ernst & Young Renewable Energy Country Attractiveness Index. China came in at number one overall and India was ranked number four.

At 77, China's wind power score was especially high, nine points ahead of its nearest competitor, Germany. The index said China's installed wind capacity has exceeded the electrical grid capacity in some regions of the country, but development continues in order to meet a national goal of producing 100 gigawatts of wind power by 2015.

India came in at number five on the wind index and was number two on the solar index. The United States topped the solar index and was ranked third for wind development.