How does energy-saving glass enter into millions of households?

The forthcoming "12th Five-Year" energy-saving plan will allow more and more building glass manufacturers to see the opportunity for high-quality energy-saving glass to be widely used in the window and door curtain wall industry. As a leader in building energy-saving glass, what kind of new products and technologies does CSG hold? In China, where consumers have become increasingly aware of environmental protection and energy conservation, CSG has also brought to the industry what ideas worth learning from?

Product Advantages of Energy-Saving Glass Xu Wuyi, technical director of CSG's Engineering Glass Division, told reporters during an interview at this year's Beijing Door and Window Curtain Wall booth that CSG has become a professional manufacturer of doors, windows and curtain walls. According to research, currently CSG's overall production capacity, market share, actual sales, and brand awareness are ranked in the top two in China. It can be said that through years of operation, CSG has become a leader in the field of architectural glass.

In November of this year's Beijing Door and Window Curtain Wall Exhibition, CSG mainly exhibited dual silver Low-E glass and more advanced three silver Low-E glass. Xu Xu said that at present, Shuangyin Low-E glass is mainly used in high-end curtain wall projects in China, such as CCTV, Guangzhou West Tower and other large-scale high-rise buildings. The theme of this year's exhibition was “Energy Saving, Environmental Protection, Green, and Low Carbon”, demonstrating a comprehensive energy-saving glass product in the architectural glass field. As a building glass manufacturer, CSG also produces products for the curtain wall sector and solar photovoltaic products, and uses silicon materials to manufacture solar photovoltaic panels. At the exhibition, CSG's exhibits were mainly made of architectural glass and new energy.

What is the unique technical content of CSG glass products in terms of insulation and energy saving? Xu said: "Energy-saving products actually cover the two aspects of 'insulation' and 'insulation'. CSG's current building energy-saving products are upgrading the thermal insulation properties of existing products through technology upgrades. R&D is synchronized with foreign countries."

At present, the most advanced architectural energy-saving glass in the construction field is the three-silver Low-E glass that was launched by CSG and foreign countries at the same time. This technology is also in its infancy in foreign countries. At present, there are no major projects in use in China. This product produced by CSG is mainly sold abroad. It should be said that this technology is still relatively advanced, the advantage of this product is reflected in its better energy efficiency. Any type of energy-saving product developed to a certain extent, if you want to suddenly obtain a large energy-saving return through a technological progress is difficult, so even if the technology advances a little or a little more, it should be the technical progress of this product .

For architectural glass, as long as the thermal insulation performance is improved a little, the energy-saving effect can be achieved. In summer, architectural glass needs to improve the shielding properties of solar heat; in the winter, it needs to save heat. The Double Silver and Triple Silver Low-E glass now launched by CSG can do this. In other words, CSG's new products can ensure that the building has enough light, so that only light and no heat enter the room. This is the advantages and characteristics of CSG's new products.

This kind of product is more humane, and it has taken a new step in terms of energy-saving performance. In general, CSG's new products are characterized by high light transmission and low solar heat transmission. In winter, its low thermal conductivity makes the glass insulation better.

The future trend of architectural glass Xu believes that the future development of architectural glass, on the one hand, the quality will continue to increase, including the energy-saving performance of products; the other is the use of new structural forms to enhance safety performance. In general, the glass used for curtain wall needs to pay attention to two points: one is safety; the other is energy saving. The future development of architectural glass will still go along this path and continue to develop new technologies to improve product performance. Building glass now introduces new technologies, namely solar photovoltaic panels. There are always some opaque parts such as roofs and buildings on the building. Although glass was used in these places, it was only a decorative effect and did not play a role in lighting. For this situation, solar photovoltaic panels can be used in the future. This is also the future development trend.

In terms of product variety, CSG basically covers building glass with flat glass. The most widely used curtain wall is flat glass. It can be processed into safety glass during use, such as tempered glass, laminated glass and so on. In addition, it can be processed into a glazed glass to play a decorative role, it can also be processed into a coated glass, play a dual role of energy saving, decoration, including the Low-E film coating glass can be processed into hollow glass to save energy. These can be combined and processed again. Low-E laminated glass is a combination of processed products. This glass processing process is more complicated. The existing CCTV new site has already used this structure of glass.

Another new type of material has entered the field of construction, such as embossed glass for solar-powered electromagnetic panels. This ultra-white embossed glass was used in wind energy solar cells. Although it also belongs to flat glass, the outer surface of the embossed glass is not smooth and flat, but is embossed. This uneven surface is used to refract more solar energy and introduce it to the underlying solar photovoltaic panels and eventually convert it into electrical energy. This is the original design principle.

Now this glass has also begun to be used in construction, but it presents another special effect. Because the surface of the embossed glass is uneven, it does not look like glass, but has the characteristics of translucent glass and localized spot reflection. This feature is deeply favored by designers. They believe that this effect is wonderful and unique, so this material was introduced into the field of building curtain walls. This glass is used on the wall of the Shenzhen Stock Exchange. These materials are produced in CSG.

CSG's products are all in the industry chain. Because CSG has its own sand mines and float glass plants, it has very large processing bases in Dongguan, Tianjin, Wujiang and Chengdu. The flat glass produced by CSG is ultimately processed by these processing bases into glass products with decorative effects, safety and energy-saving properties used in curtain walls, doors and windows. It can be said that CSG is the most complete large-scale glass manufacturer in the industry chain.

Real estate regulation: How does it affect building glass companies?

Real estate regulation has no effect on architectural glass companies? In this regard, Xu said: “The regulation of real estate has a certain impact on architectural glass companies. First, the state’s control over real estate has slowed down the pace of development of the real estate industry. Second, the country now strongly advocates policy-protected housing. The biggest problem in the protection of housing is that the local government is undercapitalized.In this case, the developer will compress the investment in many aspects. Although the energy conservation and environmental protection has been mentioned by the country as a strategic height, it will be encountered in the actual implementation process. In many problems, implementation standards will also be reduced to a certain degree. In the long run, the future development will be good."

Ten years ago, Low-E glass was still an aristocratic product. The people thought it was too expensive to use and the real estate developers were not interested in it, resulting in the use of Low-E glass in a large area. But nowadays, high-end energy-saving architectural glass has entered the civilian sector and has gradually become a mass product. The price is also relatively cheap.

According to China's current urbanization process, the overall market capacity is still very large, as long as people have to live in housing, there must be glass for housing. At present, China's glass processing capacity is in short supply, and it still cannot fully meet the market demand. The reason why there are many glass companies to compete in this market is because there are still many markets to be developed. According to the national "Twelfth Five-Year Plan", 2010 is a step, and in 2020 it is a step. The state requires energy conservation must reach a certain percentage. However, China's current production capacity is far from enough. Therefore, in the long run, companies should be optimistic, although the current real estate control policies will have an impact in the implementation process, that is, the overall speed will slow down and the production capacity will shrink. But for CSG, this impact is not great. Because CSG was established at the beginning of the positioning of high-end. The country’s current high-end projects are relatively less affected by this regulatory policy. CSG is increasing its efforts to expand the civilian sector. The civil architectural glass market will be affected by this.

Promote Low-E energy-saving architectural glass: where is the bottleneck?

What is the practical application of Low-E energy-saving architectural glass? What difficulties will be encountered in the promotion of popularization? In response, Xu said: “We hope that all energy-conserving products can be used in areas where building energy efficiency standards require energy conservation. However, the use of energy-saving products is closely related to the local economic development. In China, the most energy-saving glass The place should be the northeast region, because the climate there is very bad. However, because the northeast region's economy is lagging behind, even though we are vigorously promoting high-end products there, the overall usage of the region is the smallest in the country. This is caused by regional economic factors. The same is true in the western region."

South China is a hot summer and warm winter region. In this area, CSG focuses only on the summer problem. East China is a hot summer and cold winter region. CSG focuses on this area in winter and summer. The climate is not very bad, and its energy-saving requirements must not be as strong as in the Northeast. However, because these regions are relatively economically developed, many commercial and residential projects use Low-E energy-saving architectural glass. Thus, Low-E energy-saving building glass is largely subject to economic factors in the promotion process. In fact, local design institutes and professionals engaged in energy conservation research have all clearly understood and understood energy-saving technologies and energy-saving products. However, in practice, owners often do not really use them for economic reasons. Xu believes that companies should continue to tap the potential from within, that is, the price potential. Areas that are relatively economically backward are very sensitive to prices. Since these areas are ready to be developed, prices should be made more competitive. Xu believes that the overall trend of the future Low-E energy-saving building glass must be good, but it needs a process.

It is believed that through continuous research and efforts, CSG will certainly make more and more Low-E glass into millions of households.