The company has been looking at renewable sources such as solar and wind
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/neyveli-lignite-set-600-mw-solar-power-capacity
[2] http://admin.indiaenvironmentportal.org.in/category/author/t-e-narasimhan
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/power-industry
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy