Feasibility analysis for a large scale solar energy heating in central region of China

Building energy conservation has become an important problem in the world. In China, building energy consumption is 26.7% of total energy consumption. If coupled with the indirect energy consumption, such as housing construction the total building energy consumption accounts for 46.7% of total social energy consumption. Solar water heating system is an effective building energy-saving ways by solar energy applications and it has been widely used in China. The National Solar water heaters use more than 70 million square meters to the end of 2005, accounting for 60% of the worlds, annual growth rate is 27% in the past 10 years. In this paper, take Zhengzhou for example, the region, geographical location, weather conditions and solar energy resources are full investigated and studied; analysis the feasible of large scale solar energy heating in central region of China.