April 12, 2012. With Indian receiving $ 10.2 billion investments in clean energy, the country has emerged as one of the top performing clean energy economies in the 21st century, an eminent American non-profit organisation said in a report. The Pew Charitable Trust, in its report, said India's clean energy sector continued to flourish in 2011, with private investment increasing 54 per cent to $ 10.2 billion, placing the country at number 6 spot among the G-20 nations. This was the second highest growth rate among the G-20 nations, The Pew Energy said. Clean energy investment, excluding research and development, has grown by 600 per cent since 2004, on the basis of effective national policies that create market certainty. India's "National Solar Mission", with a goal of 20 GW of solar power installed by 2020, helped drive the seven-fold jump in solar energy investments, to $ 4.2 billion, the report said. The country received $ 4.6 billion and an additional 2.8 GW of capacity was installed over the course of the year. India now has 22.4 gigawatts of installed clean energy generating capacity.