A building composed of five hotels that uses sunlight to generate electricity first appeared in Baoding.

The building in Baoding, Hebei Province has not yet been built, and people come to visit it one after another. The reason is that this is the first five-story hotel building in China that uses sunlight to generate electricity. It is an energy-saving green building.

The most attractive part of this building named Diangu Jinjiang International Hotel is the solar panels covered on the external wall, which looks like ordinary glass curtain walls, turning the high-energy-consuming building into a small power station that outputs electricity.

Speaking of installing solar panels on high-rise buildings, Apollo, an engineer of Baoding Shengyuan Investment Development Co., Ltd., who has participated in many international projects and has rich experience in solar energy application, told reporters that solar curtain walls are all over the building facades, of which the east and south facades are the main parts of the power station. There are also large areas of prominent parts on the west side. In addition, there are solar panels on the roofs of ancillary buildings that people will not notice, and the glass lighting area of 200 square meters at the top of the lobby.

Apollo said that the solar panels installed in these locations have different functions. The southeast two facades are solar glass curtain walls designed integrally with the building; The west facade is a set of independently designed solar devices, and its significance lies in showing people how to install solar panels on completed buildings; Solar panels installed on lighting roofs and awnings show people the flexibility of using solar devices. Moreover, solar modules installed in all locations have advanced data acquisition systems, which can record and display the real-time power generation, total power generation, solar irradiance, wind speed and other weather parameters of the solar power generation system, and publish the system operation data on the Internet. Relevant personnel can extract the operation data of global photovoltaic power generation system at any time to provide scientific basis for customers to determine which installation method to adopt.

Experts believe that solar glass curtain wall has many advantages, such as environmental protection, energy saving, sound insulation, good light transmission, power generation and so on. Power Valley Jinjiang International Hotel has adopted photovoltaic power generation technology on a large scale and from many angles, and installed a grid-connected capacity of 0.3 MW, which can not only meet the public lighting of buildings, but also generate electricity on the grid. After completion, it will become a model project of photovoltaic grid-connected power generation in China.

According to reports, the power generation of the entire "Electric Valley Plaza" including the Electric Valley Jinjiang International Hotel is 1.5 MW, of which the Electric Valley Jinjiang International Hotel is the first phase project with a total installation area of 4,490 square meters and an installation capacity of 300 kilowatts; The second and third phases of the project will be carried out, including the development of the clubhouse and surrounding communities. They are 9 1 18 square meters in the second phase, with an installed capacity of 500 kilowatts; Phase III13520m2, with an installed capacity of 700kW.

According to experts, the annual output of 1.5 MW photovoltaic grid-connected power generation system is 17 1 10,000 kwh, which can replace 684 tons of standard coal, reduce carbon dioxide emissions by 496 tons, sulfur dioxide emissions by 14 tons, nitrogen oxides by 7 tons, and soot emissions by 12 tons.

The integration of solar photovoltaic utilization and building is the development trend of international construction industry. Miao Liansheng, general manager of Baoding Yingli Group, who successfully undertook the photovoltaic roofing project of Kaiserslautern Football Stadium 1 MW, the only designated venue in the 2006 World Cup in Germany, said that it is our pursuit to make more domestic buildings productive, energy-saving, environmentally friendly and livable. The insiders believe that with the continuous improvement of solar photovoltaic utilization and building integration technology, photovoltaic integrated building will become the development direction of China construction industry in the future.