This “Evaluation of China's Energy Options” (ECEO) is a very important and informative analysis of China's energy-supply challenges. The ECEO was prepared for and with the support of the China Sustainable Energy Program. The Program links American and Chinese experts and is aimed at assisting “in China's transition to a sustainable energy future by promoting energy efficiency and renewable energy.” The ECEO was itself written by an international group of experts on energy issues. They seek to augment the Chinese Development Research Centre's 2004 “National Energy Strategy and Policy 2020” (NESP), an assessment of China's current and future energy needs and how to satisfy them. The ECEO is thus a treasure trove of data and concise analyses of the structure of China's energy demand and supply as well as the relevant institutions and organizations.