This presentation discusses venture investing opportunities in clean technology. It notes that global energy needs and carbon emissions continue to rise significantly. Renewables are expected to supply only 20% of energy by 2020 despite rising oil prices. Cleantech encompasses a broad range of sectors with depth of entrepreneurial opportunities. Factors making cleantech attractive now include a shift in economics, large addressable markets, and government policy support. Venture investment in cleantech has risen substantially since 2002 with most funds going to energy generation. Key criteria for evaluating deals include market size, technology advantages, economics, and team experience. Examples of solar, biofuels and battery technologies are discussed. Government policies can further support innovation through various funding and market mechanisms.