Yaliang Village in Yucai Ecological Zone of Sanya City is surrounded by mountains. One kilometer away from the mountain lies the Dalong Reservoir, the largest water conservancy project in Sanya City.Although guarding Dalong Reservoir, because Yaliang village's cultivated land is located in mountainous area, coupled with imperfect water conservancy measures, water shortage has long been a major problem troubling the villagers' production and life.Our village depends on the weather for food. The crops are planted, but there is no water to irrigate them. They die almost when they are picked.Water is the lifeblood of agricultural production. Sanya has long sunshine and large evaporation throughout the year. If there is no sufficient water irrigation, many crops cannot grow well. In 2017, villagers began pumping water from the Dalong Reservoir to the village's Zaji Reservoir, where it was diverted to irrigate fields, in order to alleviate the shortage of irrigation during the dry season.
Every year water only electricity costs 70 thousand yuan, and the village collective annual income does not exceed 30 thousand yuan.When our village team first entered Yaliang village, we found that the village was short of irrigation water for production and domestic use. The village will apply for drought relief funds to the district government every year. The winter melon and vegetable planting in the village will cost 60,000 to 70,000 yuan for electricity only.
Using traditional technology requires a lot of money to build water projects, occupy land, and consume electricity to pump water.So, is there any good way to solve the water problem and overcome these disadvantages? Considering that Sanya is rich in solar energy resources, Yucai Ecological Zone invested about 3.6 million yuan to build a solar photoelectric controlled water irrigation project in May 2019. The project uses solar energy to supply
water and introduces water into farmland through pipes, which not only saves water investment, but also saves land use and manpower.In August 2019, the solar photoelectric controlled water irrigation project in Yaliang Village officially realized water supply, with a daily water supply of about 3,000 cubic meters. Last year photovoltaic power diversion irrigation just supply the whole village winter melon vegetables, the village irrigation crops of water is not short of.
Today, walking in Yaliang Village, a 300-meter-long photovoltaic panel has brought more vitality to the village. Thanks to the completion of the solar photoelectric controlled water irrigation project, villagers in Yaliang Village have solved
the problem of living and irrigation water, benefiting over 2,000 mu of cultivated land and sloping land, and villagers no longer have to worry about farming without water. The completion of the solar photoelectric controlled water irrigation project has solved the problem of the villagers' perennial lack of irrigation water for production and increased the enthusiasm of the villagers to develop
the planting industry.
In recent years, Sanya has vigorously promoted the concept of ecological civilization and environmental awareness, and improved the utilization rate of new and renewable energy such as photoelectricity. In 2016, the executive meeting of Sanya Municipal Government deliberated and approved the Interim Measures for the Management of Solar Distributed Photovoltaic Power Generation Projects in Sanya City, and set up special funds for distributed photovoltaic
power generation projects to encourage the public to actively participate in the construction of low-carbon cities.Yaliang village in the Dalong reservoir, and Dalong reservoir main channel photovoltaic power station, the power station covers a total area of 250,000 square meters, using 25740 360 watt type monocratic silicon PERC components and 2860 360 watt type monocratic silicon double-sided PERC components, a total of 10 1 MW photovoltaic sub-array, capacity of 10 MW. The power station can provide 13.11 million kilowatt-hours of clean electric energy to the power grid on average every year. Compared with coal-fired power plants, the annual saving of 18,000 tons of standard coal can be calculated based on the
coal consumption of 315 grams of standard coal for power supply.The power station can reduce the emission of a variety of air pollutants every year, including sulfur dioxide emission of about 347.6 tons, nitrogen oxides of 197.5 tons, carbon monoxide, carbon dioxide, ash emissions, etc., and the effect of energy saving and environmental protection is remarkable. Dalong reservoir main canal photovoltaic power station using dalong reservoir space above the main canal and the plot construction of photovoltaic power generation, especially designed for the erection of the photovoltaic bracket on the top
of the main canal, adopts single row layout and independent foundation, already completely avoid damage to the structure of the main facilities, reduce the channel capacity, and make full use of the space above the main canal, realize
a dual-use, improve the efficiency of the original land use, give full play to the benefit of land, the land utilization and combining with the development of new energy industry play a good demonstration effect.
The new form of power station combining photovoltaic with reservoir trunk canal will be conducive to the interaction, co-integration and high-quality development of new energy and water conservancy and irrigation development, accelerate the transformation and upgrading of reservoir water conservancy project, increase farmers' income and rural development, promote the local economic development, with significant economic, social and environmental benefits. In addition to using the space above the main channel of the reservoir and the land to build photovoltaic power generation, in the rooftop photovoltaic power generation project of Sanya Yazhou Fishery Port, the grid connected photovoltaic power generation
project is planned and constructed by using the roof of Block A cold storage and row storage ice building in the supporting area of the central fishing port.
In January 2017, the south cliff state energy company, and sanya bay investment co., LTD to sign the contract energy management mode of the photovoltaic power generation project roofing sanya cliff state center fishing port leasing contract, in photovoltaic power generation, roofing leasing area of 14000 square meters, choose 320 watts of monocrystalline silicon photovoltaic modules, install 4712 block, the installed capacity of 1507.840 kw. After the project is connected to the grid, it can generate 1.68 million kilowatt-hours of electricity on average every year, and provide 42.22 million kilowatt-hours of clean energy to Sanya power grid in a 25-year generation cycle, which increases
the reliability of the power supply station.The rooftop photovoltaic power generation project of Sanya Yazhou Fishing Port belongs to distributed photovoltaic power generation. According to the principle of decentralized access nearby and balanced consumption on site, the operation mode of full amount online is adopted. It provides a practical platform for enterprises to connect small capacity distributed photovoltaic power generation to the grid, and accumulates experience and data for the use of solar photovoltaic demonstration system.
It not only adopts solar power generation technology, which is safe, environment-friendly and pollution-free, but also does not occupy land for the installation of photovoltaic system, so that the valuable land resources are repeatedly
and effectively utilized, promoting social energy conservation and emission reduction, and realizing the sustainable development of urban energy. It can reduce carbon dioxide by 3679 tons, sulfur dioxide by 1110 tons, nitrogen oxide by 553 tons and carbon dust by 36,815 tons, with considerable social and environmental benefits.
Photovoltaic power generation is also an important measure to realize poverty alleviation in Sanya's poverty alleviation work.They generate electricity by installing photovoltaic panels on the roof, which receive sunlight and convert it into electricity, which is then fed to the grid. In addition to supplying household use, the rest is sold to China Southern Power Grid at a certain price.As long as the sun shines, the family has an income. In 2018, Haitang District won the battle of poverty alleviation, Haitang District Nantianju invested funds to build photovoltaic equipment for eligible poor households, through the construction of photovoltaic equipment connected to the grid,
to achieve 19 households out of poverty in Nantianju photovoltaic income of about 2,000 yuan per household every year.Photovoltaic power generation project, it has a long-term stable income low carbon economy features, has been as economic increase farmers income, rural poverty reduction, rural economic development of one of the important project, it's on to bring economic income to the people at the same time, also to reduce carbon emissions, which is to achieve the ecological environment protection and economic efficiency double abundant harvest, help sanya low-carbon construction of city.
Photovoltaic power generation, the effective use of solar energy inexhaustible, inexhaustible characteristics, clean, safe and other significant advantages, is a real green environmental protection of the new renewable resources. Sanya actively uses photovoltaic power generation technology and builds photovoltaic power generation projects to balance the earth's resources, which greatly solves the problem of resource waste and reduces the emission of polluting gases, contributing
to the development of green economy.