The document summarizes Lawrence Berkeley National Laboratory's assessment of China's energy-saving accomplishments and opportunities during its 11th Five Year Plan period from 2006 to 2010. It finds that China has made substantial progress in meeting its overall 20% energy intensity reduction target, with most key energy efficiency programs on track to meet or exceed their goals. However, it also identifies challenges, such as lack of systematic data reporting and barriers to building retrofits and structural industrial changes. It provides recommendations to strengthen China's energy policies by improving monitoring, program design, and targeting structural transformation.