China's northwestern region has China's most abundant solar energy resources, and these areas are also the most affected by the sandstorms in China. With the development of new energy sources such as solar energy, many photovoltaic power station construction and operators began to explore the “photovoltaic sand control†model combining photovoltaic power generation and desertification management, hoping to get out of a new model of industrial sand control.
The roadside beach in Gulang County, Wuwei City, Gansu Province is located on the southern edge of the Tengger Desert. It is one of the areas most affected by sandstorms. In November 2013, the 500MW photovoltaic power station invested by Zhenfa New Energy was put into use in the first phase. The photovoltaic power plant began to combine solar energy development and desertification management.
The reporter saw on the roadside beach that underneath the photovoltaic panels covered with green plants, the dunes could hardly be seen from a distance. It was hard to imagine that this desert was once used.
“The effect of sand control is very obvious. The growth of plants in the PV power plant area is significantly better than in other areas.†Yu Dehu, head of Gulang Zhenye Desert Photovoltaic Power Generation Co., Ltd., said that this is mainly due to land leveling and photovoltaic panel coverage. The negative effect has greatly improved the living environment of plants.
According to Dehu, the biggest feature of the Zhenfa Gudong Photovoltaic Desert Eco-power Station is the combination of photovoltaic development, desert control, and water-saving agriculture. Sheltered sand barriers and sand-fixing forests form the protective forest system at the periphery of the power station. Photovoltaic panels are installed. Drip irrigation facilities, planting green economic crops, achieve win-win results for economic and ecological benefits.
It is understood that with the development of photovoltaic power plants and the intensification of competition in the industry, the combination of photovoltaic power generation and sand control has become a bargaining chip for many companies.
In Wuwei Ciqien County, Xingye Solar Energy Technology Holdings Co., Ltd. also plans to take the new model of photovoltaic sand control. In 2009, Zhenfa New Energy Company built a desert ecological power plant project in Zhongwei, Ningxia.
“We hope to find new profit growth points for photovoltaic power plants and maintain their advantages in the competition.†Lei Guoqing, manager of Xingye New Energy Minqin Project Department, said that although the cost of sand control will be higher in the early stages, Xingye New Energy Minqin Project is The desert area is rich in groundwater resources, and it belongs to an open-ended mining area. It is profitable to measure the development of photovoltaic sand control.
"The shading effect of photovoltaic panels can reduce evaporation by 20% to 30%, which can very well improve the living environment of plants." Lei Guoqing said that the improvement of the ecology is also beneficial to solar power generation. Rising dust has a greater impact on power generation, and plants can reduce the rise of dust.
According to Xi Wenhua, director of the Gansu Institute of Natural Energy Research and vice chairman of the China Renewable Energy Society, the prospects for photovoltaic treatment of sand are very broad. Now many photovoltaic power plants are simply building power stations, and they have no innovation and competitive advantages. Extensive, land value has not been fully utilized.
"Sand control plant research is not a long-term photovoltaic company, which requires cooperation. However, there is little cooperation in this area." Xi Wenhua believes that due to the lack of professional technical personnel, can not effectively solar energy development and water-saving irrigation technology The organic combination is the biggest challenge facing the current photovoltaic sand control.
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