2013年3月26日星期二

Hangzhou East Railway Station and the use of photovoltaic power generation


If you live in Hangzhou area near East Port , County, presumably, will these two days of the movement of the East Railway Station curious - the top of the East Railway Station Station housing arranged in a block of blue glass. Why the roof to the whole blue Is poser? In fact, the huge blue roof, is the construction area of ​​120,000 square meters of photovoltaic power generation projects of East Railway Station.

Yesterday morning, with the Hangzhou Power Authority of professionals take the initiative to come to start for the  PV inverter project access to the national power grid network to provide technical support. This is currently the largest single building photovoltaic power generation system gradually unveiled. Hangzhou East Railway Station and standing the station housing on top of, the reporter saw a clear: like a large brick thick pieces photovoltaic panels arranged in laying area bigger than 16 football fields, one looked quite spectacular.

Original white top-level ground, more than 80% coverage by blue. "Separate an electric board about two square meters, this time about 60,000 such panels." Chint Solar company responsible for the project, Li Xiaoping, manager of the company, told reporters to late April, will be able to laying completed. Since July, 60,000 photovoltaic panels will be a sunny day, the light energy is converted to electrical energy fed into the electricity network.

By then, the supply of people watching TV to play in the day-to-day power of the computer, there will be a part from this magical rooftop. "The installed capacity of the project is 10 megawatts, is expected to generate electricity annually 9.82 million." Hangzhou Power Authority Dakehubu Director Zhou Honglei explained to reporters: installed capacity is rated generating capacity to determine the annual total electricity generation .

10 MW of installed capacity in the domestic regarded as second to none. Previously, the largest single building photovoltaic power generation system is located in the Shanghai Hongqiao hub, the installed capacity of 6.7 MW. Zhou Honglei for a calculated way, "It can be said that the electricity produced here daily supply of day-to-day use of the 20,000 ordinary citizens." For most people, the photovoltaic power generation is still strange to many people is to be confused with solar power.

"Illumination can generate a potential difference between the different parts of the semiconductor material, this phenomenon was later referred to as 'photovoltaic effect'." Zhou Honglei explained, how to make solar panels power generation, is often said, special dielectric heating power by gathering sunlight . The photovoltaic power generation is the use of the photovoltaic effect ", so that monocrystalline silicon, polycrystalline silicon semiconductor light force and the current. Therefore, photovoltaic electricity from complex topographical constraints, safe and no depletion dangerous.

In Li Xiaoping, large-scale use of photovoltaic power generation, distributed energy, is a future trend. Domestic reason why the later start, because of the high prices of the early years of the photovoltaic panels. East Station PV power projects due to the building earlier, doing an average construction period, the use of photovoltaic panels price is about 10 yuan / watt, compared with the current 0.7 U.S. dollars / watt price higher, but compared to 2000 the price of $ 4.5 / W, is difficult to imagine that cheap. "East station PV power project investment of 230 million yuan, the company's latest estimate, about 12 years, will be able to recover the cost."

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