Home » The time-of-use electricity price mechanism is further improved and rationally widened the peak-to-valley price difference to guide low-carbon development-Current Affairs News-Zhejiang Online

The time-of-use electricity price mechanism is further improved and rationally widened the peak-to-valley price difference to guide low-carbon development-Current Affairs News-Zhejiang Online

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The time-of-use electricity price mechanism is further improved and rationally widened the peak-to-valley price difference to guide low-carbon development


July 31, 2021 11:11:03

Source: China Economic Net-“Economic Daily”


The National Development and Reform Commission recently issued the “Notice on Further Improving the Time-of-Use Electricity Price Mechanism”, deploying localities to further improve the time-of-use electricity price mechanism, serving the construction of a new power system with new energy as the main body, and promoting green and low-carbon energy development. Why should we further improve the time-of-use tariff mechanism, and what impact will it have on enterprises and residents?

“Electricity cannot be stored on a large scale. Production and consumption need to be balanced in real time. The power resources consumed in different periods of power use are different, and the cost of power supply varies greatly. The time-of-use electricity price mechanism is designed based on the time value of electrical energy, which guides power users to cut peaks. An important mechanism arrangement for filling the valley and ensuring the safe and stable economic operation of the power system.” said the relevant person in charge of the National Development and Reform Commission.

At present, my country’s new energy installed capacity continues to expand, the power consumption structure is changing rapidly, and the power load presents the characteristics of “double peaks” in winter and summer, and the power production side and the consumption side fluctuate sharply in both directions. “Further improvement of the time-of-use electricity price mechanism is of positive significance for ensuring the safe and stable economic operation of electricity, and helping to achieve the goal of carbon peak and carbon neutrality.” The person in charge said.

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According to statistics, the cumulative time of the year during the hottest summer and coldest winter period is generally less than 60 hours in various places, but the corresponding peak power demand can be more than 100 million kilowatts higher than usual. It is more challenging to ensure the safe and stable operation of the power system. . Further improve the time-of-use electricity price mechanism, especially optimizing the peak-to-valley electricity price mechanism and introducing a peak electricity price mechanism, which will help guide users to use electricity at different peaks and reduce economic and social operating costs.

“All localities actively improve the peak-to-valley price mechanism in light of local conditions, take overall consideration of local power supply and demand conditions, the proportion of new energy installed capacity and other factors, scientifically divide the peak and valley periods, and reasonably determine the peak-to-valley price difference, where the system peak-to-valley rate exceeds 40%. In principle, the peak-to-valley power price difference is not less than 4:1, and in other places, it is not less than 3:1.” The “Notice” makes clear requirements on how to improve the peak-to-valley power price mechanism in various places.

The “Notice” clarified that all localities should implement a peak electricity price mechanism based on peak and valley electricity prices. The peak period is reasonably determined based on the maximum load of the system. In principle, the peak electricity price rises above the peak electricity price by no less than 20%. Can refer to the peak electricity price mechanism to establish a deep valley electricity price mechanism. Where there are obvious seasonal differences in daily electricity load or power supply and demand, the seasonal electricity price mechanism should be improved; where renewable energy sources such as hydropower have a significant proportion, the high and low electricity price mechanism should be established and the time period division and the power price floating ratio should be reasonably determined.

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“The above arrangement can ensure that the power system has a large peak-to-valley difference and where it is difficult to guarantee safe and stable operation, and can form an effective peak-to-valley price difference, and guide users to use less electricity during peak hours and more electricity during low valley periods. The accelerated development of system adjustment capabilities such as pumped storage and new energy storage provide more space; it also takes into account the actual situation of the system where the peak-to-valley difference is relatively small, and avoids unnecessary expansion of the peak-to-valley price difference and affects the normal power consumption of users.” The person in charge said.

What impact will the further improvement of the time-of-use electricity price mechanism have on enterprises? “This time we further improved the time-of-use electricity price mechanism and continued to adhere to a basic principle, that is, to maintain the overall level of electricity sales prices of power grid companies basically stable.” The electricity price during the period will be adjusted upward, and the electricity price during the trough period will be adjusted downward.

The person in charge said that considering that some commercial users are difficult to use peak-shifting electricity, and at the same time, it is clear that for some general industrial and commercial power users who are not suitable for peak-shifting electricity, localities can study and formulate average electricity prices, and users can choose by themselves. The implementation of the time-of-use electricity price mechanism can also effectively reduce some unnecessary investment in transmission and distribution and power generation resources, improve the operating efficiency and economy of the power system, and help reduce the overall cost of electricity for the whole society.

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Further improve the time-of-use electricity price mechanism, will it have an impact on residential electricity prices? The “Notice” clarified that where conditions permit, it is necessary to promote the residential peak-valley price mechanism according to procedures, gradually increase the peak-valley price difference, and guide residential users to use less electricity during peak hours and more electricity during low valleys, so as to play the role of peak-shaving and valley-filling .

“At present, 14 provinces have introduced residential peak-to-valley electricity price policies, and the peak-to-valley price difference is relatively small. In some places, only flat-segment electricity prices and valley-segment electricity prices are set, and peak electricity prices are not set. In most places, residents are allowed to choose by themselves. Whether to implement peak-to-valley electricity prices. In general, the further improvement of the time-of-use electricity price mechanism this time will have less impact on residential electricity prices.” The person in charge said. (Economic Daily-China Economic Net reporter Xiong Li)

Editor:

Mou Jia

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