On May 12, 2021, the world's largest floating photovoltaic power station in the 200 MW project of Dingzhuang Reservoir Phase I, contracted by Hubei Engineering Company, was successfully connected to the grid.
The project site was located in Dingzhuang Township, west of Lingcheng District, Dezhou City. Dingzhuang Reservoir is a special water supply reservoir for the first and second phases of Huaneng Dezhou Power Plant. The project has been included in the first batch of photovoltaic parity projects in 2019 by the National Development and Reform Commission and the National Energy Administration, with an investment of about 819 million yuan and a total capacity of 320 megawatts, which is the largest single floating photovoltaic plant in the world.
This project and Dingzhuang 100 MW wind farm package were listed as the major construction projects in Shandong Province in 2020. Hubei Engineering Company affiliated to Power Construction Corporation of China was responsible for the installation and commissioning of equipment in the 200 MW PV area construction of Dingzhuang Reservoir in Huaneng Dezhou.
According to the introduction, a number of scientific and technological innovations were adopted on the Huaneng Dezhou Dingzhuang integrated landscape storage power generation project. The energy conservation and environmental protection technology photovoltaic power station was adjacent to the wind farm. The world's advanced energy storage system was selected, and the "landscape storage at the same site" was achieved successfully in intelligent coordinated control.
This floating PV system
consists of a high density polyethylene (HDPE) floating box, a floating photovoltaic mounting system, a convergence box, a monocrystal silicon double glass battery module, and a series inverter fixed on the floating body. The floating photovoltaic is suitable for the deep-water surface, and has no destructive effect on the water body itself, which is environmentally friendly, saves basic cost and has a short construction period.
Compared with the traditional ground photovoltaic plant, the photovoltaic modules on the floating photovoltaic plant were installed on the floating body on the water surface, which has the function of not occupying land resources, reducing the amount of water and evaporating the floating body to block the sunlight and inhibit the growth of algae. At the same time, the water can also "cool" the photovoltaic modules and cables, significantly improving the efficiency of power generation. After the project is completed, it will provide 420 million kilowatt-hours of clean energy every year and save 205,000 tons of standard coal, with remarkable energy saving and emission reduction benefits.