The report that will be submitted to the LG soon says Delhi can replicate Gandhinagar’s “rent a roof” model, but it will be limited to government buildings like offices, schools and hospitals as most private properties are not suitably aligned or are haphazardly built.Although the capital’s solar power potential has not been assessed yet, a senior official from the department said, “Delhi is very different from other cities. The buildings are of uneven height. There are unauthorized colonies and various constructions on roofs”. As a result, the rooftop area available for solar generation in Delhi may be much less than that in Gandhinagar, which is a planned city with buildings of similar height and size. “We have to assess the potential with bidders for this project. First, let’s find out how much roof space is available,” the officer said.