Electricity is the main engine of modern life. Many of the programmes and projects announced by the Govt will require good quality uninterrupted electric supply right from the villages to remote areas to towns and cities and the slums there. Not to leave out the agricultural fields, industries - especially the MSME's and other services sectors.
No doubt coal based thermal power plants will be the mainstay. Renewable energies can make a beginning but cannot replace coal for a few decades. To get a realistic picture as to what can e done, read the attached article; it was published in Kisan World July 2014. It has drawn some facts and ideas from a detailed report from USA and adapted them to the Indian context.