Solar power has come a long way from the 50 per unit that it cost a couple of decades ago
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/sunny-side-1
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-policy
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/power-industry
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-thermal-power