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Innovation is the key to promoting the sustainable development of the photovoltaic industry

the development of human society has experienced two energy changes, both of which have replaced the development of the previous energy after the emergence of more efficient energy. At present, we are beginning to enter the development stage of the third energy change. The characteristics of the third energy change are different from the previous two. This change is driven by external forces, because it is a "passive" change based on external constraints or requirements such as ecological environmental protection, climate change, sustainable supply of energy resources and so on

in this case, what needs to be changed is the transfer from high-density energy to low-density energy, and from easy-to-use energy resources to poor energy resources. Therefore, this transfer direction will inevitably lead to an increase in costs, and from previous resource dependence to technology dependence

attach importance to and realize mutual adaptation and docking with the power system

the third energy reform highlights the characteristics of electricity. At the source of supply, we will get rid of dependence on fossil energy, and more than 90% of non fossil energy will be converted into electricity; On the consumer side, new power technologies and facilities such as electric vehicles will be used on a large scale

therefore, it is particularly important for the development of new energy to adapt and connect with the power system. We see that achieving green energy conversion and vigorously increasing the proportion of renewable energy such as photovoltaic is a common choice for countries around the world to adjust their energy strategies. It is a common problem for global power development to ensure the safe and stable operation of the power system and control costs while realizing a large proportion of renewable energy power generation. The development scale of renewable energy resources in a specific area mainly depends on the coverage of electricity

the challenge brought by the rapid development of renewable energy to the balance of power system is one of the focuses of research at home and abroad. Because wind power, solar energy and other power sources that are not schedulable and highly variable are connected in large quantities, the instantaneous balanced power system is facing great challenges in ensuring the minute level system balance and reliable operation. To cope with such challenges, it is necessary to comprehensively coordinate and optimize the resource allocation of the whole power system. In terms of power supply structure, it is necessary to optimize the power supply structure and improve the operation flexibility of conventional power generation equipment. In particular, it is necessary to consider building a certain scale of peak shaving power supply. In terms of power infrastructure, we should speed up the upgrading and transformation of power infrastructure, strengthen the power frame structure, speed up the cross regional power construction, improve the regional interconnection capacity, and meet the needs of large-scale connection and transmission of new energy. In terms of dispatching operation, we should improve the intelligent level of power dispatching operation, optimize the preparation of power dispatching plan, carry out intra day and real-time dispatching, and improve the ability of power to accept large-scale new energy. In terms of demand side response, the power system is required to change the traditional operation and management mode, improve the demand side response ability, improve load characteristics, and fully mobilize all kinds of demand side resources to participate in system balance through policies and measures

in addition, it is also necessary to establish a power system operation management system suitable for the integration of photovoltaic and other new energy sources. In terms of merger technical standards, the introduction of mandatory and binding national level merger technical specifications. In terms of power prediction management, new energy power prediction is the basis for new energy to be included in the power generation plan and carry out real-time scheduling. New energy power plants and power dispatching agencies are required to establish power prediction systems. In terms of operation monitoring and management, the construction mode of new energy real-time monitoring system should be selected according to local conditions. Standardize the basic functions of the new energy monitoring system and improve the access of new energy operation information. In terms of dispatching plan management, it is required to give priority to dispatching new energy according to energy-saving dispatching methods, formulate scientific dispatching operation rules, and integrate wind power, solar energy, etc. into the annual way of overall planning, and into the monthly and day-to-day balance

at present and in the future, China's power demand will still be in the stage of large increase, some of which are in the length of 0.01~500 mm/min. Therefore, for China, we should pay special attention to and strengthen the overall planning and coordination in development

in the future development of photovoltaic industry, we must establish the concept of two-way improvement, improve the operation flexibility and regulation ability of conventional adjustable power supply, expand the power coverage and the low repeatability of cross regional power exchange test, change the traditional power supply and use relationship mode and the operation mode of the system, and build a profit model for different stakeholders

innovation is the key to promoting the sustainable development of the photovoltaic industry

it is necessary to meet the technical requirements of power system operation and management, which is a compulsory course for photovoltaic power generation to achieve healthy and orderly development, and also an important premise for photovoltaic to truly become a "small and beautiful" emerging energy supply mode and the main power supply in the future. Germany did not take any monitoring measures for small-scale distributed photovoltaic power generation in the early stage, and the technical requirements for operation are relatively low. With the large-scale increase of photovoltaic power generation, 50. 2Hz problem, voltage exceeding standard problem, line transformer overload problem, etc. are exposed one by one. As a result, tens of billions of euros need to be invested in the electrical transformation alone, which does not include the cost of supporting equipment that requires the owner to invest in bringing the distributed photovoltaic power generation below 100 kW into the monitoring. At the same time, technological innovation and management innovation must also be strengthened. For the photovoltaic industry, the innovation demand is more prominent, especially in industrial cultivation and business model

all of these are based on a common energy development goal. Energy development is always to meet the needs of economic and social development, which is the basic task and goal

in order to meet these goals, we also need to achieve green, low-carbon, environment-friendly, etc. In the future, energy development needs to provide technically accessible and economically affordable sufficient energy supply for economic and social development on the premise of being environmentally friendly, clean and efficient, which is our development goal. Distributed photovoltaic should also play a corresponding role. In terms of affordable development costs, not only their own costs should be reduced, but also the supporting facilities of access systems should be minimized. German research shows that when the installed PV capacity reaches 52 million KW, it can basically be equal to the electricity price. At this time, the policy will no longer provide subsidies to distributed PV. The scale of 52 million kW is expected to be achieved around 2020. These policies are adjusted based on acceptable development ideas

new energy has become a new variable to define the power market mechanism

China is now in the critical period of power market reform, and all sectors of society have been discussing the plan of power reform. Power market-oriented reform is the right direction. However, compared with the reform environment of power market many years ago, there is a new element, new energy, which will redefine the basis of power market

there are two concerns in the global power market reform. One is how to consider the elements of renewable energy development in the goal of market-oriented construction. The second is how to build a market mechanism including renewable energy. After the entry of new renewable energy, the commodity attribute of electricity is no longer defined by electricity consumption and frequency, and may be reflected in smaller periods, supporting the system at the minute, second and minute levels

whether renewable energy power generation can participate in the market and how to participate in the market are issues being discussed at home and abroad. California is promoting the marketization of renewable energy. Before 2012, California, like other parts of the United States, was exempt from the stable power supply of renewable energy such as wind power and solar energy. After 2012, new wind power plants in California began to undertake smooth output, or stable power supply, like other power plants, which is unique to California. The state of New York continues to give priority to wind power. At present, the company has signed strategic cooperation agreements with some domestic new energy vehicle enterprises, and there is no consensus on which system is better. The same is true of Germany. Its "negative electricity price" mechanism has recently been adjusted by Ford's plan to use more aluminum on f (1) 50 pickup trucks. Now they propose to give 0 to the wind farms that can provide system services that are put into operation before 2015. Additional electricity price incentives of 48 euro cents/kWh. There is no doubt that this is the systematic value embodied on the basis of the current policy subsidies. The elimination of government subsidies in the future means that the value of this system service should be reflected through the market. Britain is also making corresponding discussions. The UK plans to establish a capacity market from the end of this year to auction the system capacity to ensure the market value of traditional power supplies in this way

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