The government today said 4200 MW capacity of roof top solar systems are to be installed at individual, institutional, social, government including public sector undertakings, industrial and commercial sectors in the country by 2019. <br/><br/>So far, rooftop solar power plants with an aggregate capacity 656 MWp have been installed in the country. Replying to a question in the Rajya Sabha, Power and Coal Minister Piyush Goyal said to promote solar roof top systems in the country, government has approved the Solar Roof Top programme with an outlay of 5,000 crore rupees in March 2016.