The world's largest water-light complementary power station has been built in Ganzi, Sichuan Province

Construction of the Yalong Kola photovoltaic power station, the world's largest water-light complementary power station, began Wednesday in Yajiang County, Garze Tibetan Autonomous Prefecture, Sichuan province.

Kola photovoltaic power Station is the water-light complementary phase I project of Lianghekou Hydropower Station in Yalong River. The power station is located in Kola Township, Yajiang County, with an altitude of 4,000 meters to 4,600 meters. The total investment exceeds 5.3 billion yuan, the installed capacity reaches 1 million kW, the annual utilization hours are 1735 hours, and the annual average power generation is 2 billion KWH.

Water-light complementarity: Calming the volatility and randomness of photovoltaic power generation

"The most important feature of the Cora PV plant is the complementarity of water and light." Yalong river basin hydropower development co., LTD. (hereinafter referred to as the yalong river company) project management deputy director wu fire soldier, the traditional photovoltaic affected by day and night, peaked at noon, at night to 0, strong volatility and randomness, large-scale photovoltaic grid, will affect the power grid, is not conducive to the safe and stable operation of the power grid.

Lianghekou hydropower Station is the leading reservoir power station in the middle reaches of Yalong River, which is the largest reservoir power station in Sichuan Province with an installed capacity of 3 million kW, a total storage capacity of 10.8 billion cubic meters, and a regulated storage capacity of 6.56 billion cubic meters. It has the characteristics of multi-year regulation, and can smooth the volatility and randomness of photovoltaic power generation.

Wu fire soldier said, cora photovoltaic power station of electricity, through the grid access LiangHeKou hydropower station, using LiangHeKou enormous capacity of regulating capacity of hydropower stations, smooth the volatility and randomness of photovoltaic power generation, can achieve short-term daily regulation and long-term adjustment, adjustment of season, "so after above the complementary, can stable output power."

0371d408c7a9b1307c1eda77201a2f7cThe reporter learned that in Ganzi Prefecture, where Kola photovoltaic power station is located, there are seasonal differences in photovoltaic power generation output, showing the characteristics of "large output in winter and spring, small output in summer and autumn", which forms a natural complement within the year with the characteristics of "summer wet season and winter dry season" of hydroelectric power generation.

Li Sheng, executive vice president of the General Institute of Hydropower Planning and Design, pointed out that the water-light complementary development mode of Kola photovoltaic power station, through the complementary output characteristics of hydropower and photovoltaic power generation in the year, can improve the utilization rate of the transmission line, improve the comprehensive power generation efficiency. "The Kola photovoltaic power station has promoted the development scale of water-light complementarity to one million kilowatts for the first time, which has a good demonstration effect."

The implementation of "integration of animal husbandry and light" brings "photovoltaic +N" benefits.​

The Cora project is located in an economically underdeveloped ethnic region. The reporter learned that during the construction of the power station, it is expected to pay 600 million yuan in local taxes and fees, and will contribute more than 150 million yuan annually after the operation.

In order to further boost rural revitalization in ethnic minority areas, the project construction will drive the development of agriculture and animal husbandry, tourism, transportation and other industries in ethnic minority areas through a series of measures such as "photovoltaic + characteristic industry", "photovoltaic + infrastructure improvement" and "photovoltaic + employment", and generate the benefits of "photovoltaic +N".

According to the relevant person in charge of Yalong River Company, the project combines with the local livestock demand, the photovoltaic support will be increased, the photovoltaic module will be 1.8 meters above the ground, to meet the needs of vegetation growth, ensure the grazing space of cattle and sheep, and realize the complementary "grazing light". At the same time, the project will comprehensively improve the local infrastructure, through road reconstruction, increasing water supply engineering, sewage treatment, garbage treatment facilities, planting plateau plants, carrying out plateau ecological protection research and other measures, continue to create the village landscape and improve the village architectural style.

The reporter learned that during the construction period of the Kola project, it can provide more than 3,000 jobs for the local people. During the operation and production period, the power station and power sources supply can provide technical jobs such as photovoltaic module cleaning and maintenance, as well as service jobs such as public security and cleaning.

At present, Ganzi Prefecture is promoting the construction of a renewable energy base integrating water and scenery and a modern agriculture and animal husbandry base with plateau characteristics in a scientific and orderly manner, so as to build an internationally renowned ecological, cultural and tourism industry. The construction of Kola photovoltaic power station will drive the development of related industries in Ganzi Prefecture and form an important local economic radiation point, which is of great significance for consolidating the achievements of poverty alleviation and promoting the revitalization of local villages.

To build the world's leading water-light integrated "numerically intelligent" photovoltaic power station

Yalong river, head of the company related to tell a reporter, cora photovoltaic power station through the establishment of operational integration platform, the use of big data, since the study of artificial intelligence system for equipment fault intelligent diagnosis, analysis, and creatively integrate depot safety early warning, equipment maintenance strategies, photovoltaic power station all intelligent integration of the business, Strive to build a benchmark for smart photovoltaic power stations integrating water and light in high-altitude areas.

At the same time, the company united national engineering technology research center and the technique of remote sensing applications, multidimensional construct cora photovoltaic twin platform, building digital implementation of high precision, real 3 d, full live cora the dynamic and holographic of our photovoltaic power station, auxiliary power station construction from planning and design, engineering construction to the whole life cycle of intelligent management, operations management Improve efficiency, ensure the construction period, and ensure safety.

Shen Zhanfeng, deputy director of the National Engineering and Technology Research Center for Remote Sensing Applications, said the introduction of digital twin technology to assist the construction of the Kala project, which is located on a plateau, can significantly improve the quality, safety, efficiency and environmental friendliness of the project. "Intelligent construction can provide technical support and security guarantee for the long-term safe and stable operation of the power station, and the accumulated experience will also provide useful reference for the construction of high-altitude clean energy projects in China."

According to the yalong river basin renewable energy integration planning study, yalong river basin clean energy base, more than 80 million kw total scale of about 30 million kilowatts hydropower, wind power, photovoltaic power generation, more than 10 million kw 40 million kw, pumped storage power generation all is completed, will become the world's largest green, clean and renewable energy.

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