More articles from Nitin Kabeer Companies have been invited by the Tamil Nadu Energy Development Authority ( ERA ) to bid for 50 MW of grid - connected rooftop solar for use on government buildings . Schemes range from 1 kWp to 50 MW , at a maximum price of INR4.79 ( ~$0.069 ) per unit , with successful bidders agreeing to a 25-year operation and maintenance ( O&M ) contract . TEDA specified that bidders must have previously installed more than 50 MW and have at least 10 years ' O&M experience in India , while solar modules used in the projects must be Indian - made .
Companies have been invited by the Tamil Nadu Energy Development Authority ( ERA ) to bid for 50 MW of grid - connected rooftop solar for use on government buildings . Schemes range from 1 kWp to 50 MW , at a maximum price of INR4.79 ( ~$0.069 ) per unit , with successful bidders agreeing to a 25-year operation and maintenance ( O&M ) contract . TEDA specified that bidders must have previously installed more than 50 MW and have at least 10 years ' O&M experience in India , while solar modules used in the projects must be Indian - made .