By 2010, Hainan's use of solar energy, shallow ground energy area accounted for 30% of new construction area, of which Haikou reached 50%. The focus will be on the solar thermal energy utilization to increase the penetration rate, solar photovoltaic power generation, solar air conditioning, and shallow ground energy utilization to carry out pilot projects to promote photovoltaic islands. This is clearly clarified by the Provincial Development and Reform Commission, the Provincial Construction Department, and the Provincial Science and Technology Department jointly issued the "Opinions on Promoting the Large-Scale Utilization of Solar Energy in Hainan Province" (hereinafter referred to as "Opinions").
The "Opinions" determined that Haikou City and Sanya City are pilot cities for large-scale utilization of solar energy in our province. Haikou City and Sanya Municipal Government will select representative building communities and public buildings as demonstration sites for large-scale solar energy utilization, with key experimental technologies, advanced and applicable, stable and reliable operation, reasonable economics, and large value-added projects.
The government's investment in new public lighting and public building projects should give priority to the use of solar or solar and wind energy complementary lighting, solar-wind energy-LED complementary lighting, and shallow ground energy. When retrofitting existing public lighting projects and public building projects, it should also be adapted to local conditions and adopt solar energy-saving products according to actual conditions.
During the 11th Five-Year Plan period, public lighting and landscape lights in key scenic spots such as Sanya Nanshan and Qionghai Bofin Haikou Wanlv Park should be promoted and applied with complementary solar or solar and wind energy complementary lighting and solar wind energy LED complementary lighting.
The "Opinions" proposes to establish a solar energy research and development center in our province, and work hard to formulate incentive policies to support the promotion and application of solar energy. The Provincial Department of Finance, the National Development and Reform Commission, the Construction Department, the Local Taxation Bureau, and the State Administration of Taxation shall, in accordance with their respective functions, study and formulate incentive policies and measures for the department to promote the large-scale utilization of solar energy. Through the support of local governments, the use of renewable energy surcharges, urban sharing (lighting) surcharges, tax incentives, etc. for solar energy companies and users to use the relevant national policies, accelerate the development of solar technology, equipment manufacturing, development and utilization We will implement preferential tax reduction and exemption policies, and actively use the national fiscal interest subsidies and subsidy payments to support the development of the solar energy industry in our province.
Expert: Hainan solar power potential can reach 51 Three Gorges Power Station
Sun Yesheng, a member of the Hainan Provincial Committee of the Chinese People's Political Consultative Conference, made a speech at the first meeting of the Fifth Session of the CPPCC Hainan Province at the beginning of this year. He called for the large-scale promotion and development of the solar photovoltaic industry and the construction of Hainan into an island and living environment with unique characteristics of the photovoltaic industry.
Create Hainan Photovoltaic Island
Sun Yesheng said in his speech entitled "Building Hainan Photovoltaic Island by the Power of the Sun", it is predicted that the world's oil reserves will only be 30--40 years old and about 60 years. Energy security is rising to the height of national security. Countries have developed clean and environmentally friendly new energy sources to solve the energy crisis.
In our province, the reserves of clean energy such as solar energy, wind energy and tidal energy are quite abundant, especially solar energy, which is the most suitable clean energy for large-scale mining in our province. According to the relevant information of the Ministry of Construction, the average annual sunshine days in our province is 225 days, the annual light duration can reach more than 2400 hours, and the total annual solar radiation is 4500-5800 MJ/m2. If the solar energy that reaches Hainan's surface in a year is used to generate electricity, it can generate 47,550,000 kWh of electricity a year, which is higher than the total power generation of 51 Three Gorges hydropower stations.
Promote the use of clean energy
In his speech, Commissioner Sun Yesheng also pointed out that the province has a good foundation for the development of solar energy economy, and it is highly feasible to promote the use of clean energy in the province.
According to the survey, at present, there are more than 20 manufacturers of solar water heaters in our province. Most of the high-end hotels, hotels, and hospitals in the province have installed solar water heaters. Some companies are actively using solar technology to solve energy needs. For example, Chinatown plans to use a rooftop solar photovoltaic system to transform it into a low-energy demonstration building. Solar street lights have also embarked on municipal roads and some public places, Sanya municipal transportation station reconstruction and installation of solar shelters, the province's eleventh five-year development plan, proposed to vigorously develop new energy technologies; provincial eleventh five-year science and technology development plan, will also develop Use solar energy resources to be included in key development projects.
Commissioner Sun Yesheng said that Hainan's abundant solar energy resources have attracted many forward-looking enterprises. For example, Wuxi Suntech Solar Co., which ranks third in the world and China's number one, is actively cooperating with Hainan Tuocheng Solar Energy Co., Ltd. to build a photovoltaic power station in our province. At present, the Provincial Development and Reform Office has agreed that the two companies will jointly build a 15 MW, Yangpu 10 MW, Haikou 10 MW photovoltaic grid-connected power station in Sanya.
Recommended to develop photovoltaic industry
Sun Yesheng proposed the development of solar photovoltaic power generation industry: comprehensive survey of solar energy resources in the province. Formulate the overall plan for the development of Hainan's photovoltaic industry as soon as possible, strive to use solar energy as the pillar energy of the province's future; increase the popularization of solar energy utilization knowledge, strengthen public environmental education, and form a good atmosphere for utilizing new energy and protecting the environment in the whole society; Preferential industrial policies to support the development of the solar industry. To study and formulate plans and measures for the development of solar energy industry in our province, and incorporate large-scale solar energy construction projects such as photovoltaic power generation into provincial budgets and plans, and scientifically formulate a reasonable proportion of funds and growth rate to ensure the sustainable development of the solar energy industry; Solar energy enterprises with strong technical capabilities support their development and become the leading industry of solar photovoltaic power generation. During this year, we actively assisted our province's enterprises to strive to include their 35-megawatt photovoltaic grid-connected power station construction in the national 300-megawatt photovoltaic power generation master plan to obtain national financial support; selectively construct solar energy demonstration communities and demonstrate Streets, solar demonstration buildings, vigorously promote the use of solar street lights, solar water heaters, solar air conditioners, etc.; establish a solar energy technology research and development center.
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A single-phase VFD, also known as a variable frequency drive, is a specialized electronic device used for precise control and regulation of single-phase motors. Unlike three-phase motors that are commonly used in industrial applications, single-phase motors are predominantly found in residential and small-scale applications.
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Energy efficiency is a significant advantage offered by single-phase VFDs. By adjusting the motor speed to match the load requirements, the VFD reduces energy wastage and improves overall energy efficiency. When the motor operates at a lower speed during periods of low demand, energy consumption is significantly reduced, resulting in energy savings and lower operating costs.
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