Tungsten trioxide can be prepared into an EC film and thus be used to produce a smart glass window. Numerous studies by Berkeley National Laboratory have shown that electrochromic windows can increase building energy efficiency, and can reduce the cooling and lighting power consumption by up to 50% for commercial buildings. And it can also reduce energy consumption by 16% at a lowest value.
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As you may have known, 30%-40% of the world's major energy sources are used in buildings for heating, cooling, ventilation and home appliances. In most industrialized countries, energy consumption of buildings is higher. For example, the United States is close to 40%. And electrical energy for buildings is even higher, with up to 70% in some countries. As a result, the building's energy-saving potential is enormous. It saves energy of up to 70% by 2030 and up to 90% in the long run, without compromising comfort and convenience. While windows are a weak part of building energy efficiency, it loses a lot of energy. Therefore, the window used is preferably an energy-saving window such as a tungsten oxide electrochromic window.
