What Is The New Power System?

By Author: linzhibo
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The core feature of the new power system is that new energy occupies a dominant position and becomes the main energy form. The China Merchants Securities report pointed out that "two industrializations" is a typical feature and long-term theme of the new power system, namely "electrification and clean energy".

Under this trend, random and fluctuating power sources such as wind power and photovoltaics replace deterministic controllable power sources such as thermal power, which brings challenges to grid regulation, scheduling and flexible operation. The large-scale application of new energy-based and high-proportion power electronic equipment will bring about fundamental changes in the operation characteristics, safety control and production mode of the power system.
Several understandings about the new power system:

One is the definition of new energy. New energy-related technologies have developed relatively maturely, but their definitions have been constantly changing and updating. Based on the relevant descriptions on the definition of new energy at home and abroad, the basic definition of new energy is ...
... the energy that is developed and utilized on the basis of new technology compared to traditional energy. For today's power industry, photovoltaic power generation and wind power are the two power generation types with the most mature technology and economy, the fastest development, and the largest scale effect in the world. They are the main sources of new energy that can be expected to increase. Refers to wind, light new energy.

The second is the understanding of new energy as the main body. In the construction and development process of the new power system, new energy will gradually occupy the position of the main body of electricity, the main body of output and the main body of responsibility. The primary status of new energy should be the main body of electricity. The amount of new energy is directly related to the amount of carbon emission reduction. The "double carbon" goal also puts forward clear requirements for new energy and its proportion. The subjectivity of new energy power is the ultimate goal and main driving force of the new power system. New energy will also gradually become the main contributor. It is estimated that in 2060, the cumulative period in which the output of new energy units accounts for more than 50% of the total system load can reach 46% of the annual length, indicating that the output of new energy units for nearly half of the year can dominate. New energy must become the main body responsible for supporting the new power system. As the main power source, new energy must have the ability to independently support the grid voltage and frequency. At present, in the absence of these capabilities, some countries have restricted the output ratio of new energy units.

New energy power generation occupies the dominant position, and new energy units assume the main responsibility for supporting the operation of the system, which are two important signs of the completion of the new power system.

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