Diu Smart City has become the first city in India that runs on 100% renewable energy during daytime setting a new benchmark for other cities to become clean and green. Diu had been importing 73% of its power from Gujarat until last year. It has now adopted a two-pronged approach whereby a 9 MW solar park spread over 50 hectares rocky barren land has been developed besides installing solar panels on the roof tops on 79 government buildings thereby generating 1.3 MW annually. To further enhance its solar capacity, Diu also offers its residents a subsidy of Rs 10, 000-50,000 for installing 1-5 -KW rooftop solar panels. The city is saving about 13,000 tonnes of carbon emissions every year and due to low-cost solar energy, power tariffs have been cut in residential category by 10% last year and 15% this year.