太阳能资源被认为是 2 1世纪最引人注目的可再生能源和洁净能源。为了经济的可持续发展 ,应该把环境保护和长期利益作为研究目标。文章估算了中国 14个城市的太阳能资源 ,分析了太阳能热水系统和BIPV系统的经济性。研究结果表明 ,中国的太阳能利用潜力很大 ,政府应该对其发展发挥重要作用 Solar energy is considered the most attractive renewable energy and clean energy of the 21st century. For economic sustainable development, environmental protection and long-term interests should be the research goals. The article estimates solar energy resources in 14 cities in China and analyzes the economy of solar hot water system and BIPV system. The results show that China has great potential for solar energy utilization and the government should play an important role in its development