Economic Feasibility Analysis of Rooftop Solar Power Plant Design with Household-Scale On-Grid System in Semarang CityJaka Windarta, Singgih Saptadi, Denis, Dimas Adi Satrio and Johanes Soritua SilaenE3S Web Conf., 202 (2020) 09002DOI: https://doi.org/10.1051/e3sconf/202020209002