To improve the energy mix,clean energy resource replaced coal as the fuel for 1902 coal-fired boilers in the urban and suburb areas of Beijing. A total of 1.28 billion cubic meters of natural gas was used,up by 33.7 percent over the previous year.

• 为改善能源结构，城近郊区1902台燃煤锅炉改用清洁能源，天然气用量达到12.；8亿立方米，比上年增长33