New trend of low-carbon future: "solar" marriage "building industry"

From the China International Housing Industry Expo held on September 27th, it can be seen that solar energy and building integration are widely used in heating, power generation, and hot water supply. For the first time, this year's Expo will open up a “solar energy utilization and construction combined with sunlight” area, and will focus on the combination of new technology and new products in solar panel systems and buildings. In order to further promote the integration of solar energy and construction, it laid a solid foundation and accelerated the application of solar energy in combination with construction. Energy-efficient, low-carbon housing constitutes a popular trend for future housing.

Let's follow the small series to see what kind of sparks the solar energy and construction industry has produced.

Solar bridge

The crystalline silicon solar cell module manufactured by Japan's Sanyo Electric Co., Ltd. has been adopted by buildings in London Blackfriars station. The station is located across the bridge that flows through the Thames in London, England.

The "Hetero junction within trinsic-in-layer (HIT)" solar cell module used is expected to be completed in the summer of 2012. It is said that after completion, it will become the world's largest "Solar Bridge" and London's largest solar power system. With this system, half of the power consumption at the Blackferns station can be provided, and about 511 tons of CO2 emissions can be reduced each year.

Solar roof

When entering the "Green Building Town" in Changzhou Wujin Hi-tech Zone, it is easy to notice the black roof of the town, which is a block of solar power panels. As long as the outside is full of sunlight, the solar panels will automatically work, and they can store external heat and light energy and implement heating and power generation through the indoor system. The solar panels on the roof can generate about two or three Baidus per day. ”

Photovoltaic building

In Baoding, Mancheng County, a pilot demonstration area and demonstration project for photovoltaic power generation will be launched. Both the three sides of the photovoltaic building and the roof will use the silicon-based thin-film translucent component provided by Tianwei Group's thin film company to replace the building components. According to reports, the use of photovoltaic modules to replace building components, so as to achieve power generation, energy saving, environmental protection, aesthetic effect, is a new trend in the world of solar power applications.

Automatic temperature regulation external wall board

Guizhou Zhongyieng Low-carbon Energy-saving Technology Co., Ltd. developed the “Kangjubao” exterior wallboard for exterior wall decoration, waterproofing, fireproof Class A, thermal insulation, heat storage, and heat insulation. The construction is the same as the tiling. Can achieve exterior wall decoration, fire prevention, thermal insulation, heat insulation effect, according to reports, solar phase change wall material technology principle is to absorb heat energy stored in the physical structure of phase change material, when the outside temperature is lower than heat storage At the time of temperature (storage temperature can be set by the manufacturer), the phase change material can reach the goal of wall thermal insulation in order to achieve the equilibrium phase of the release of thermal energy, and the phase change material can be reversed when the temperature is higher than the set temperature. Heat, automatically adjust the house temperature.

Policies help connect solar energy and construction industry

In 2009, China introduced a series of policies and measures, including the “Solar Roof Project” and the “Golden Solar Project”. In the “Twelfth Five-Year Plan for Renewable Energy Development” to be announced this year, the installation target for photovoltaic power generation is determined to be It will reach 10 million kilowatts in 2015 and 50 million kilowatts by 2020. China's rooftop PV will also have a large-scale development, and the large-scale expansion of rooftop PV will be expected to enjoy long-term preferential policies.

This preferential policy has also received positive responses from various regions in China:

Recently, the Guangzhou Municipal Construction Commission issued the "Guangzhou People's Government's Notice on Accelerating the Development of Green Buildings (Draft for Solicitation)" (hereinafter referred to as the "Notice") issued by the Guangzhou Municipal People's Government to solicit opinions from various relevant organizations. According to the notice, the construction projects that meet the green building evaluation standards will receive special energy-saving awards, while the green building projects that use renewable energy such as solar energy for more than 50% of the building's energy consumption will also enjoy the corresponding tax benefits in accordance with the law.

The housing and urban-rural development department of Qinghai Province has fully promoted the application demonstration project of renewable energy buildings and strived to increase the scale and application of renewable energy in the construction field. It is understood that Qinghai Province has vigorously promoted solar photovoltaic building application projects. Among them, 4 projects passed the review and received 18.38 million yuan of national award funds. At the same time, solar hot water and heating application projects are being carried out for the second phase of a batch of residential quarters and affordable housing. For the three solar heating hot water demonstration alternative projects that have been approved for 250,000 square meters of construction, the central government has subsidized 10.24 million yuan.