In this paper, Navigant Consulting's Andrew Kinross and Priscilla Lee, and John W. M. Cheng and Chi Cheung Ngan of CLP Research Institute present one power utility's experience in developing a technology roadmap for the transition to a low carbon electric system based on clean energy and technological innovations to lower carbon emissions. Because there is no one solution for addressing climate change, the utility used a portfolio approach to identify a range of key technologies to achieve low carbon energy, including renewable energy resources, carbon capture and storage, and green and innovative energy services. The authors note that many utilities are facing similar issues and that the power industry as a whole faces challenges associated with climate change, environmental concerns and pressure from regulators for a low carbon environment.