An Approach Towards a Sustainable Urban City - Utilization of Existing Rooftop Solar Energy Panels by Making Use of DC Appliances. - Rifat, Ashir Hamim; Hossain, Muckbul; Abir, Rifatul Islam; Noman, Shoud; Ashraf, Tahmidul; Azad, A. K. M. Abdul Malek (2021)