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addtime:2023-07-29    author:xinyuren    hits:240

china energy storage network news: as the world's largest developing country and energy production and consumption country, china needs to ensure the stable supply of energy in the process of realizing the "double carbon" goal, in order to achieve stable economic and social development. china has a huge energy system, and that system is dominated by coal. coal has long played an important role in china's energy mix. china's electricity generation is dominated by coal, and its steady and relatively low supply has provided an important driving force to meet china's rapid growth in electricity demand and economic development in recent decades. in order to achieve the "double carbon" goal, china needs to build a clean energy system with wind power, photovoltaic and other new energy power as the main body in the next few decades, and orderly exit from fossil energy (coal). however, the gradual withdrawal of traditional energy needs to be built on the basis of safe and reliable alternatives to new energy. therefore, at this stage, china's low-carbon transformation still needs to take into account energy costs and energy security, and it is difficult to get rid of the dependence on coal power in the short and medium term, and the energy and power consumption structure will still be dominated by coal.

achieving carbon neutrality is a gradual process. as a developing country, china's energy is closely related to the economy, because the proportion of clean energy is still very small, its growth can not meet the growth of energy demand, and it is difficult to avoid the growth of coal power installed capacity in the short term. on the one hand, china's electricity demand will still maintain rapid growth. at present, china is still dominated by "production-oriented" energy consumption, and the industrial sector is the main user of electricity consumption. this "production-oriented" energy consumption structure leads to a close correlation between gdp and energy consumption, and economic development still needs to be based on a large amount of energy consumption. on the other hand, due to the relatively low supply of wind power and photovoltaic at this stage, fossil energy (coal electricity) is still an important energy to meet the needs of social and economic development for a considerable period of time. therefore, as the economy continues to develop, the increase in newly approved coal power installations is to avoid power shortages. however, we cannot ignore the fact that china's renewable energy growth is still accelerating to meet the goal of low-carbon transition.

in the short and medium term, in addition to meeting energy and power demand, coal power also plays a positive role in china's carbon neutrality process, such as ensuring stable supply of power system. it can be predicted that the basic form of coal power withdrawal in china in the future will not be large-scale demolition "decommissioning", but to make room for clean energy by reducing the overall utilization hours. therefore, it is necessary to strengthen the "ballast" role of coal power for the safety and stability of the power system, and transform coal power into peak power supply and standby power supply through flexible transformation and development of carbon capture technology, so as to realize the clean and efficient use of coal. on the one hand, the flexible transformation of coal power plant is a technical choice to improve the comprehensive effect of the flexibility of power system operation. however, the flexible transformation will reduce the hours of coal power utilization and affect the revenue. at present, the coal power enterprises have the problem of income difficulties, and the flexible transformation will increase the financial burden of coal power plants. therefore, the government should consider using policy measures to reduce the cost of flexible transformation. on the other hand, carbon capture technology will also be one of the important ways out of the coal power industry. carbon capture technology currently faces multiple challenges, such as high cost and insufficient technology maturity. therefore, the deployment and support of carbon capture technology is urgent. in particular, china's coal power volume is huge, if the future coal power to continue to play a role in the power supply, with wind power photovoltaic as the main power system, is bound to rely on carbon capture technology. in addition, in the process of low-carbon green transformation of coal power, it is also necessary to actively promote the clean and efficient use of coal technology. in addition to increasing the research and development of clean and efficient utilization of coal technology, it is also necessary to increase the promotion and application of clean and efficient utilization of coal technology. for example, promoting clean and efficient thermal power technology, accelerating the promotion of flue gas purification equipment for coal-fired power stations, and improving the flue gas emission standards for power stations.

in general, coal power has been the foundation of china's electricity supply. china's low-carbon energy transformation needs to be based on the actual national conditions of energy endowments dominated by coal. in the process of dynamic conversion and replacement of old and new energy sources, it is necessary to make overall planning and orderly replacement, and put energy supply protection in an important position, and take clean and low-carbon utilization of coal as an important development direction.

in the long run, coal power will gradually fade into a secondary position, and become an auxiliary power source with reliability and controllability as its advantage, participating in peak load regulation and serving as a backup power source to ensure the stability of power supply and the safety of the grid. in the process of carbon neutrality, coal power needs to be reformed, transformed and rationally planned to meet the growth of power demand when the proportion of renewable energy such as wind power and photovoltaic power generation is too small to meet the increase in power demand. at the same time, the reformed coal power units can be used as a backup of the power system in the process of large-scale access to the power grid by wind power and photovoltaic, to carry out peak regulation and ensure stability. therefore, in the process of carbon neutrality, coal power will remain an integral part of the energy power mix. however, ensuring the security of electricity supply does not mean relaxing the management of coal power, the government needs to carry out a detailed overall plan for domestic coal power, strictly control the approval of new coal power units, and take the low-carbon green transformation of coal power as the main policy goal. for the development of the coal power industry, it should continue to steadily promote the elimination of backward production capacity, and shut down small coal power units with poor technical level, difficult unified management, high transformation difficulty, and backward overall level, so as to improve the overall efficiency of the coal power industry.

the exit of coal power needs to be based on the principle of "first standing before breaking", and take a road of low-carbon power transformation with national characteristics. even when china reaches its carbon peak by 2030, coal power will provide most of the country's economic growth. in short, on how to "retire" coal power, the key is how to understand the "stabilizer" and "ballast stone" role of coal power to ensure power supply, and to support low-carbon transformation at a lower cost.

source: 21st century business herald, china energy storage network author: lin boqiang

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