Abstract Recently, a high-tech tile was received by the participants at the annual meeting of the Building Energy Saving and Green Building Science and Technology Achievements Application Conference and the National Building Energy Conservation and Construction Technology Promotion Service Platform held by the Ministry of Housing and Urban-Rural Science and Technology Development Center. extensive attention. And in Zhejiang...
Recently, a high-tech tile was widely held by the participants at the annual meeting of the Building Energy Saving and Green Building Science and Technology Achievements Application Conference and the National Building Energy Conservation and Construction Technology Promotion Service Platform held by the Ministry of Housing and Urban-Rural Science and Technology Development Center. attention. In Dongqiao Village and Sanqiao Village, Fuyang City, Zhejiang Province, there are several houses whose roofs are covered with inconspicuous black tiles from a distance, but after seeing them, these seemingly ordinary tiles will actually be found. There is no hole in the sky: every tile is filled with a square solar cell. These tiles are both good building materials and power generation equipment for photoelectric conversion.
This high-tech tile is a photovoltaic ceramic tile.
Saving electricity costs over 7,000 yuan a year
It is reported that a total of 17 households in Dongqiao Village and Sanqiao Village lived in houses equipped with photovoltaic ceramic tiles. Among them, 9 households in Dongqiao Village enjoyed the convenience of high-tech residential houses due to the resettlement and demolition of new residential policies in the mountains.
"According to the actual electricity demand of the residents of the two villages, we have tailored the installations for the two villages not exceeding the maximum monthly power consumption of 100 kWh and 50 kWh respectively." Zhejiang Heda Solar Technology Co., Ltd. Hou Shengzhong, vice chairman of Zhejiang Heda, said: "17 households are expected to generate 11637 kWh of electricity per year. According to the electricity price of 0.6 yuan / kWh, electricity costs can be saved by more than 7,000 yuan."
Hou Shengzhong said that the greater significance of photovoltaic ceramic tiles is to provide energy to the sun. The design life of photovoltaic ceramic tile systems is 25 years. The replacement of standard coal by solar energy can reduce the emission of large amounts of carbon dioxide, dust, sulfur dioxide and nitrogen oxides.
New choice for tile roof
According to Dr. Li Junbing, CTO (CTO of Zhejiang Heda), photovoltaic ceramic tiles are made of clay materials and form specific formulas with various special materials. First, ceramic tiles are made through environmentally friendly production process, and then through packaging process. Combined with a crystalline silicon solar module, a ceramic tile with photovoltaic power generation is finally formed. Photovoltaic ceramic tiles mainly include 8 watt crystal glazed tile ceramic tiles with Chinese classical architectural culture characteristics, 20 watts (24 watts) Western tiling tiles and 8 watts diamond tiles reflecting western architectural culture.
The reporter learned that photovoltaic ceramic tile has three functions of heat insulation, waterproof and power generation, as well as long life, high strength, light weight, environmentally friendly technology, and conforms to the five characteristics of architectural aesthetics. It is a unique new type of green building material, mainly used for slopes. The photovoltaic building integration construction of the tile roof is especially suitable for the development and utilization of solar power in low-density real estate projects, flat-slope projects, grain depots, highway service areas, and scattered and low-density residential roofs. .
Previously, the photovoltaic ceramic tile has won the 2011 National Energy Science and Technology Progress Award, and is a major science and technology special category A project in Zhejiang Province and the central financial support industrialization project of the National Development and Reform Commission.
Explore the new road of photovoltaic industry development
Hou Shengyue, CEO of Zhejiang Heda, pointed out that the roof of residential houses has gradually become the main space resource for photovoltaic power generation. The practice of photovoltaic application markets in various countries in the world proves that large-scale photovoltaic ground power stations have problems of occupying a large amount of land resources and excessively high cost of power transmission and transformation, and residential rooftop photovoltaic power generation is only effective use of the original space. After years of development of domestic PV applications, both industrial orientation and actual policy effects have gradually shifted from large-scale ground power station applications to distributed generation modes. Roof-based distributed generation has entered the golden decade development cycle. The promotion and application of photovoltaic ceramic tiles not only conforms to the development trend of global PV applications, but also conforms to the domestic strategic industrial policy guidance. It can effectively use the roof space to promote building energy conservation, promote green building and energy dual control, and benefit ecological civilization and Beautiful Chinese construction.
“Photovoltaic ceramic tiles have added a new path to China's photovoltaic building integration. Its birth has opened the door to China's slope-type roof-top photovoltaic application market.†Hou Shengzhong said, “especially in the current major foreign markets, the implementation of 'double anti- 'In the case of photovoltaic ceramic tiles, it has a particularly important practical significance for the survival and development of China's entire photovoltaic industry."
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