The International Energy Agency (IEA) visualises renewable energy (wind, solar and hydel) outgrowing gas-based energy and becoming the second largest source of electricity, after coal, as early as 2015.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/neither-sun-nor-wind
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wind-energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy