WO3 can be used to prepare an electrochromic film for assembling an electrochromic glass, which is also known as a smart glass. And the obtained electrochromic glass may be applied in energy-saving buildings. In this regard, experts said that taking the demand for electrochromic glass in buildings as an example, according to relevant data, the area of architectural glass is increasing with the acceleration of urbanization in China.
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Experts explained that according to the analysis of bidding in 2013, commercial buildings accounted for the largest share of China's construction market share, about 66.8%; followed by public buildings, about 30.1%; and high-end residential buildings, about 3.1%. Based on 2012's 102 million m2, assuming a growth rate of 7%, the demand for building glass area is expected to be approximately 1,752,500 m2 by 2020. Suppose commercial buildings have a penetration rate of 10% electrochromic energy-saving windows. Under the condition of 5% penetration rate of public buildings, if the price of electrochromic smart glass is 500 yuan/m2, the scale of electrochromic market is expected to be no less than 70% by 2020.
