Indian state of Punjab has launched world's largest rooftop solar power plant

Spread over multiple rooftops across 82 acres, it can reach capacity of 11.5 MW and generate enough electricity to power 8,000 homes.

The Rs 1.35 billion ($20 million) project is expected to have significant environmental benefits, reducing 400,000 tonnes of carbon dioxide over the next 25 years. The project will be the model for other states to replicate similar rooftop solar plants and will help India to reach a goal of 100GW solar power capacity by 2022.  Read more at http://mashable.com/