This document discusses renewable energy economics and business. It begins by outlining the motivation for renewable energy, including cost reductions in RE technology, improving access to energy, and job creation. It then examines renewable energy markets and investments by technology and country. Various policies that support renewable energy are also reviewed. Finally, the document explores new business opportunities in the renewable energy sector through entrepreneurship, innovation, and digital technologies. It encourages building clean tech ecosystems and provides examples of energy startups. In conclusion, the presentation provides an overview of renewable energy economics, markets, policies, and new business potential.