Zhangwu County, Fuxin City is located in the northwest of Liaoning Province, China, and the south of the Horqin Sandy Land. It is situated in the transitional zone between temperate monsoon climate and continental climate, with a dry climate and annual precipitation of 300-500 millimeters. Based on monitoring data on desertification and sandification in China, the total area of desertified land in Zhangwu County is about 2 million mu, accounting for about 30% of the total desertified land area in Liaoning Province.

In 2023, China Huaneng Group invested in the Fuxin Zhangwu photovoltaic composite sand control demonstration project (with an installed capacity of 500,000 kilowatts), in which the "ecology + featured agriculture" model was adopted under and between the photovoltaic panels and arrays, vigorously promoting "power generation on the panels, restoration under the panels, and planting between the panels", in order to control desertification of the land. 

To reduce the occupation of arable land, the spacing between the solar arrays in the project is 14 meters, with the lowest point of the components 1.8 meters above the ground, occupying only 20% to 30% of the original land area. In the project, shallow buried drip irrigation planting method was also adopted, and drainage facilities and organic fertilizer application equipment was added in the planting area, in order to improve soil fertility, and increase agricultural output.

In the project, "photovoltaic sand control" is combined with the organic development of agriculture in Zhangwu County, achieving multiple benefits such as ecological security, food security, energy security, and rural revitalization.

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