A team of students from IIT Bombay has been declared as the second winner at this year's 'Solar Decathlon' contest in the US for building a house in Mumbai with advanced technology solutions to help address air quality in a hot and humid climate. The US Department of Energy's (DOE) 'Solar Decathlon' contest is the longest-running student competition in the US that challenges student teams to design and build highly efficient and innovative buildings powered by renewable energy. Ball State University won the '2023 Build Challenge' contest after dedicating nearly two years to designing and constructing their zero-energy home.