[China Glass Network] Distributed photovoltaic power generation is a rapidly developing new energy source in solar power generation projects. It has the characteristics of small size, dispersion, proximity access, proximity utilization, self-use, and excess power distribution side access. It is very suitable for Self-built photovoltaic power generation applications for individuals, enterprises and institutions. In recent years, under the guidance and promotion of some national photovoltaic power generation support policies, a large number of distributed solar photovoltaic power generation projects have been built throughout the country. Xiangyang New Energy has faced problems from project areas, project problems, project investment models and project implementation steps. In one aspect, a summary analysis of domestic distributed solar power project construction experience.
1. Area suitable for distributed photovoltaic power generation
According to the existing project experience and local conditions, the following regions are suitable for the development of distributed solar power generation projects: (1) high industrial electricity prices, and users with large daily electricity consumption; (2) developed manufacturing industry, industrial users generally have good qualifications, The power load in the industrial park is large; (3) the area with long light period in the whole year; (4) the area where the power grid is stable and the distributed power generation is convenient. At present, the above-mentioned points are satisfied, and the areas with better comprehensive conditions include: Shanghai, Jiangsu, Shandong, Zhejiang, and Guangdong. Among them, distributed solar power generation in East China, led by Jiangsu, Zhejiang and Shanghai, is relatively developed.
2. Problems faced by distributed photovoltaic power generation
In recent years, although distributed photovoltaic power generation has developed rapidly, it still faces some problems. In summary, these problems mainly include financing problems, project access problems, subsidy policy implementation issues, and operation and maintenance. Taking financing as an example, financing has always been a difficult problem for photovoltaic development. Distributed photovoltaic power plant projects in the downstream of the industrial chain have always been banks because of unclear profit models, long payback periods (up to 25 years), and high risks. A field that is far away. According to industry insiders, the interest rate of banks lending to PV power plant projects is higher than other projects. Due to the state's policies, many banks are welcome to new energy projects, but only PV can't enjoy this treatment. In the face of photovoltaic power plant construction, banks always Push away "to study again." Moreover, apart from banks, there are almost no other financing channels for distributed PV power plant projects.
In addition to financing difficulties, distributed solar power is also faced with: high yield, long payback period, difficulty in grid connection in some areas, difficulty in calculating and clearing grid power, timeliness of subsidies at all levels, decentralized operation and maintenance of power stations, and difficulty in centralized management. , long project development cycle, long-term operational uncertainty and other issues. However, the good news is that in 2014, the state and various localities have issued some support policies for some of the above problems. Therefore, some problems are expected to be resolved in the future.
3. Investment model of distributed photovoltaic power generation projects
For those investing in distributed solar photovoltaic power generation, it is important to understand the general investment business model for such projects. From the perspective of the construction and operation of the project, the investment in distributed photovoltaic power generation projects includes the following aspects:
(1) Purchase a full range of products (photovoltaic modules, photovoltaic inverters, photovoltaic supports, etc.) of distributed photovoltaic power plants;
(2) Implementation of project development, power station design and construction, etc.;
(3) The daily maintenance and long-term operational investment of PV power plants is mainly the investment in operation and maintenance.
4. Implementation steps of distributed photovoltaic power generation projects
(1) Analysis of the project owner's electricity and its own situation. From the actual starting point of the project owner, consider the power consumption, roof conditions, etc., to determine the scale of the construction of photovoltaic power plants.
(2) Preliminary design of the program. The solar photovoltaic system integrators will develop preliminary project plans, including civil engineering, geological survey, climate, lighting, design and location.
(3) System design. As the photovoltaic power generation integrator determines the power station construction plan based on the actual situation on site, and carries out specific engineering design.
(4) Apply online. The power supply company to which the project belongs submits the application form and other relevant materials, and signs the relevant grid connection agreement with the power supply company.
(5) Construction and installation. According to the project plan, implement engineering installation, commissioning, access trial operation, etc.
(6) Operation and maintenance. After the completion of the project, the operation of distributed photovoltaic power plants and subsequent routine maintenance will begin.
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