The purpose of this study is to propose degree day method for the snow storage in order to evaluate an optimum storage
volume for snow and ice utilization systems. First, we calculated coefficients for evaluation of the optimum storage volume
of snowy cold regions in Japan. Second, the proposed method was applied to various building types and space cooling
demands, and the relationship between the thermal insulation performance and the snow storage volume was presented.
This paper conducted quantitative study on the outlook of economy, energy and environment to 2030 of China Xinjiang Uygur
Autonomous Region by using econometric method. GDP growth will be over 7% annually between 2006 and 2030, and total primary
energy consumption will double by 2030. The continuation of rapid economic growth could result in a lot of difficulties for energy
development, environment protection, and CO2 emissions reductions. For the sustainable development, more comprehensive strategies
should be adopted, including development of renewable energy with highest priority, improvement in energy efficiency and automobile
fuel efficiency, etc. However, substantial governmental involvements and support, as well as the establishment of a regulatory
framework are necessary.