The advantages of photovoltaic power generation systems and equipment

Our country is facing serious environmental problems and energy issues, energy conservation is an important responsibility of the structure of industry, building energy consumption in China is the same climate conditions in developed countries 2 to 3 times. The National Development and Reform Commission issued the first 'long-term energy saving special gauge

China is facing serious environmental and energy problems. Energy saving is the important responsibility of building palisade structure industry. China building energy consumption is three times the same climate conditions in developed countries. The National Development and Reform Commission issued the first Chinese 'medium and long-term energy saving special planning', new buildings during the period of '11th five-year plan' strict implementation of energy saving 50% design standards, several large cities such as Beijing, tianjin energy saving 65% standard. Building energy efficiency is to improve the residential comfort, reduce the operating costs of the foundation, is also the urgent requirement of sustainable development. 65% of the energy efficiency in buildings is mainly borne by building palisade structure system. It is estimated that by the 20 s of this century, photoelectric costs may reduce to compete with traditional electricity price levels. Curtain wall companies and designers will work with energy companies and engineers, and promote the development of photovoltaic roof. Photovoltaic roof as a kind of effective energy saving building containment system, large-scale popularization and application in our country is predictable. In addition to the related research and development institutions and companies to further efforts, application of photovoltaic roof is an important aspect. Related government agencies and departments to further enhance the awareness of its importance and urgency, to further expand strategic planning and development planning, to further make effective supporting policies and measures, to further strengthen guidance and guide, the photovoltaic curtain wall and photovoltaic roof mass reasonable application in a short time, the healthy development of the mass. Grid photovoltaic power generation system the advantage of solar energy grid generation system converts solar energy into electrical energy, and through the grid inverter to transfer power to the grid directly, without the storage battery. Grid solar power represents the development direction of solar energy, is the most attractive energy utilization technology in the 21st century. Compared with the off-grid solar power systems, grid generation system has the following advantages: ( 1) Solar power use clean and renewable natural energy, do not consume the limited and non-renewable fossil fuels containing carbon, no greenhouse gases and pollutants in use process, in line with the ecological environment, in line with the economic and social sustainable development strategy. ( 2) Energy supply into the power grid, power grid as an energy storage device, save the battery. Compared with the independent solar photovoltaic systems construction investment, investment can be reduced 35% 45%, significantly reducing power generation cost. Save battery, improve MTBF and battery secondary pollution. ( 3) A distributed installation, nearby and on-site distributed power supply, flexible in and out of the power grid, is not only beneficial to improve the ability of power system to resist war and disasters, but also to improve the load balance and reducing line loss of power system. ( 4) Can have the effect of load. Networked solar photovoltaic system is the world's hot spot and focus in the field of photovoltaic applications in developed countries, and is one of the main development trend in the world solar photovoltaic power generation. Huge market prospects. Grid photovoltaic power generation system of equipment and type of the principle of the solar cell power generation system is to use the optical carrier electronic and empty holes were the positive and negative electrodes of solar cells to collect, and generate an electric current in an external circuit for electric power. This is a power generation system, directly convert solar energy into electric energy. It is mainly composed of two parts: the solar cell phalanx and inverter. Solar cell phalanx of the energy generated by direct transmission grid inverter to the ac power grid, or solar electricity generated by grid inverter power supply directly to the ac load.