The combined benefits of rooftop distributed PV projects

Rooftop distributed photovoltaic power generation is the future direction of the photovoltaic industry, with distinct policy orientation and broad market prospects, which will greatly boost the local photovoltaic power generation industry. As a clean and pollution-free power generation method, PV power generation can effectively convert solar energy into electrical energy. Compared with centralised PV power generation, distributed power generation has flexible application forms and diverse development modes, and through the effective use of roof resources and utility systems that meet load requirements, solar PV power generation systems and buildings are organically integrated to realise the transformation of buildings from energy consumers to energy producers. The development of solar photovoltaic systems and buildings has been transformed from energy consumers to energy producers. Since 2013 China has introduced a series of distributed PV project management, grid connection and incentive policies to provide subsidies for distributed projects. The Notice of the National Energy Administration on Matters Relating to the Development and Construction of Wind Power and Photovoltaic Power Generation in 2021 Guo Neng Fa Xin Neng [2021] No. 25 states that the budget amount of state financial subsidies for household photovoltaic power generation projects in 2021 is RMB 500 million, and in June 2021 the National Development and Reform Commission on Matters Relating to the Implementation of the New Energy Feed-in Tariff Policy in 2021, clearly states that for 2021 to be included in that year's central financial subsidies scale of new household distributed photovoltaic projects, subsidies of 0.03 yuan/kWh. With the carbon peak, carbon neutral strategy, clean energy and renewable energy will usher in great market demand and investment demand, the overall development project investment volume is large, will greatly boost the development of photovoltaic power generation industry.
Rooftop distributed photovoltaic power generation projects are a highly integrated and efficient way of generating electricity, and can bring considerable economic benefits in areas with good lighting conditions. Firstly, rooftops are ideal for installing PV power generation systems, as the roofs of buildings are open and have the advantages of not being affected by the orientation of the building, receiving light for a long time and avoiding shadow interference to the greatest extent. Secondly, large-scale rooftop distributed PV projects are often developed on a large scale, with megawatt-level installed capacity, and are a more efficient way to generate electricity through centralised, contiguous operation. Finally, rooftop distributed photovoltaic projects are grid-connected from the customer side to the household, thus reducing distribution costs and increasing the return on investment. Solar cell life can also be up to 20 to 35 years. According to calculations, with the gradual decline in the cost of photovoltaic electricity, in Shandong, Hebei, Henan and other areas with good lighting conditions, the yield of photovoltaic power generation can reach 16%.
With the promotion of paid use and trading of energy use rights, the self-generated renewable energy produced by energy-using units through rooftop distributed photovoltaic power generation projects will not be counted as part of the comprehensive energy consumption. With the proposed carbon peak and carbon neutral targets, the future market for energy use rights, the carbon market and the electricity market will be developed in synergy and coupling, the paid use and trading of energy indicators will bring new constraints on energy use and will also give rise to the continuous development of the energy use rights trading market. Energy-using units self-produced and self-used renewable energy does not count in its comprehensive energy consumption expression, and to carry out cross-city energy-use rights trading work, rooftop distributed photovoltaic power generation projects will be fully prepared for local reserves of energy-use indicators.
Large-scale county-wide rooftop distributed photovoltaic power generation projects have asset attributes and can be financed by a combination of loans, bonds and other financial instruments. In areas where the market is not very mature and the foundation is relatively weak, the whole county promotion can drive the growth of the local installed PV capacity, and the scale of the whole county promotion programme will form a scale advantage. It is a stable, low-risk investment project that can be financed through the issuance of bonds and other financial means to solve the problem of project construction funds. In addition, with the strong support of the state and the leapfrog development of the photovoltaic industry, photovoltaic power plants will also become the standard, becoming the public are familiar with the financial products.
The whole county promotes rooftop distributed photovoltaic power generation project has good social benefits by promoting employment, reducing electricity costs and benefiting the people, and has energy-saving and environmental benefits by promoting the transformation of energy consumption structure. The popularity of rooftop distributed photovoltaic power generation projects will become a mainstream way to use energy in the future by using solar energy to generate electricity without occupying new land resources and obtaining power generation in the vicinity, which can effectively reduce electricity costs and guarantee power supply; secondly, new jobs will be created during the construction, building and operation stages, which has social benefits for promoting employment; thirdly, users will benefit from policy subsidies, self-generation and self-consumption to offset the Thirdly, through policy subsidies, electricity costs offset by self-generation, the purchase price of desulphurised coal for the remaining electricity on the grid, or the leasing of roofs, users will receive certain economic returns, with good social benefits; Fourthly, the vigorous promotion of renewable energy will reduce the consumption of fossil energy, with obvious effects on the adjustment of the energy consumption structure and good environmental benefits.

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Post time: Nov-08-2021