This report is one of a number of sectoral reports under the Hong Kong 2050 Is Now initiative examining possible pathways to decarbonisation. It evaluates potential decarbonised power technologies and develops five energy mix scenarios involving different technological combinations. These scenarios consider the economic, social, and environmental impact of building a decarbonised power system. Our recommendations can inform Government planning in its pursuit of the mid- and long-term targets laid out in the Climate Action Plan.