In contrast to this 'advanced' scenario in the report, it says without any extra push, it will be able to supply 2.4-2.7 percent of India's energy needs in 2030.

The report says: 'India's tremendous wind energy resource has only been partially realised due to the lack of a coherent national renewable energy policy. Currently, the promotion of renewable energy in India is mainly driven by state governments, but inconsistent implementation and the lack of a national policy is hampering genuine progress...'

'To boost investment in renewable energy, it is essential to introduce clear, stable and long-term support policies,' it said.

IWTMA Chairman D.V. Giri urged the government to 'fast track proposals to introduce a national renewable energy policy to help the industry'.