2013年3月14日星期四

Shouguang photovoltaic greenhouses ready


March 1, the state authorities issued a document on the implementation of free grid photovoltaic power generation policy. On March 6, the reporter learned demonstration garden in the integration of the Weifang Huatian solar photovoltaic, vegetable greenhouses located in Shouguang City paddy fields, where 17 solar photovoltaic vegetable greenhouses has completed all grid application and approval procedures, is expected to "51" before available to the grid, the year the sale of 1.5 million units of electricity to the national grid.

17 solar photovoltaic vegetable greenhouses built by Weifang Huatian New Energy Group Co., Ltd., an installed capacity of 1 MW. Greenhouses are steel frame structure, canopy made of tempered glass and grid connected inverter photovoltaic panels arranged according to certain rules. Over 400 solar panels in each shed, shed eight white PV confluence box, used to store the electricity generated by the solar photovoltaic panel, and then passed by a cable to the shed end grid inverter, current grid inversemodulation of DC conversion for the exchange, and then boost the national grid.

Solar photovoltaic vegetable greenhouse winter vegetable greenhouses product of the combination of solar photovoltaic energy technology, effective use of existing vegetable greenhouses, without taking up a new land resources. According to company vice president Zhao Donghai, vegetable greenhouses to engage in the idea of
​​the solar photovoltaic power generation from the company chairman Li Qi weeks to France in 2009, a mission.

His study tour in France, saw a small distributed generation systems are installed where the vineyards on the roof and open space, back to Shouguang begins immediately after the development of the wind inverter photovoltaic power generation system, and "grafted" to the local everywhere vegetable greenhouses on. After three years of hard work and testing, in September 2012, the completion of 17 solar photovoltaic vegetable greenhouses. But because the past is no free grid policies, these solar photovoltaic vegetable greenhouses has not been and power generation.

Zhao Donghai said solar cell module has a very high transmittance, greenhouses installed solar cell panel into a variety of styles of the light transmittance of 97% or 75%, etc., can be designed according to the different regions of the cultivation of vegetables in the power generation while also to meet the needs of plant photosynthesis, the sunlight. Moreover, the solar modules can block part of the damaging effects of ultraviolet radiation on plants, vegetables can be effective in reducing pests and diseases, improve the quality of the vegetables. In addition, greenhouses PV 
wind turbine inverter systems can also be matched with the LED system, night LED system can be used to provide lighting during the day of the electricity plants, extend vegetables irradiation time, shorten the production cycle, to ensure stable production of vegetables. 

According to reports, the construction of a 100 meter x 10 meter standard solar photovoltaic vegetable greenhouses requires an investment of 85 million yuan, but five and a half years to recover the full investment, greenhouses can live up to 25 years. To a cucumber greenhouses, a greenhouse can produce 25,000 kg of cucumber, at an average price of 6 yuan per kilogram operator to sell 15 million.Photovoltaic power 100,000 a year, according to the income of 100,000 yuan of national policy. Net of related costs, a shed-year net income was up to more than 18 million, five-year and a half foot to recover the total investment. In addition, solar photovoltaic vegetable greenhouses built by the steel structure and tempered glass, the harsh climate infringement fight against strong winds, heavy rain, hail.

According to reports, the 17 greenhouses have been built a project, an investment of more than 6000 million. Huatian New Energy Group will also invest in the construction of the second and third phases. Zhao Donghai said, Shouguang 80 mu of vegetable greenhouses, all built solar photovoltaic vegetable greenhouses, a year to generate 424 billion kWh of power to meet the of Shouguang city's industrial and agricultural production and residential electricity consumption more than enough.

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