The plum blossoms have just begun in Zhejiang, and the hot weather has "seamlessly connected". Affected by the hot weather, Zhejiang's electricity load continues to rise. This summer, the highest electricity load in Zhejiang society has reached new highs, exceeding 100 million kilowatts on July 13.
According to analysis, the highest electricity load in Zhejiang society has hit record highs this summer. Cooling electricity driven by air conditioning contributed 35%, and electricity related to economic growth contributed 65%.
Zhejiang is a major industrial province, and industrial production is an important force supporting the continued recovery of our province's economy. Electricity data, a barometer of economic development, shows that Zhejiang's industrial electricity consumption accounted for more than 60% of the total electricity consumption from January to June this year, becoming the main driver of electricity consumption growth.
Our province’s industrial electricity load accounts for a high proportion of the total load of the power grid. The contradiction between supply and demand is particularly prominent during the peak period of electricity consumption in summer.
In accordance with the national requirements for improving the seasonal electricity price mechanism and the "dual carbon" goals, , implemented seasonal electricity price policies for the peak and trough electricity prices of large industries for the first time in July and August this year. , Trough electricity prices ( 12 hours), the peak electricity price (10 hours) will be reduced by 2 cents per kilowatt-hour, and the peak electricity price (10 hours) will be increased by 2 cents per kilowatt-hour, moderately widening the peak-to-valley price difference, giving full play to the role of price leverage, and guiding large industrial users to take the initiative to shift peak production, which is better It can effectively adjust the power supply and demand, realize the optimal allocation of resources, and better ensure the safety of power operation.
What is the seasonal electricity price policy?
Seasonal electricity prices refer to different electricity prices set according to seasons.
Seasonal electricity prices generally have two forms:
One is based on the characteristics of the electricity load and is divided into summer electricity prices and winter electricity prices ; The price of electricity in the wet season and the price of electricity in the dry season .
The seasonal electricity price to be implemented in Zhejiang this time is a summer electricity price, starting from July 1st to August 31st this year..
In fact, seasonal electricity prices are nothing new in my country. As far as Xiaoe knows, many provinces and cities such as Jiangsu, Shanghai, Anhui, Beijing, Tianjin, Hebei, and Shandong have implemented them and achieved good results.
Why implement seasonal electricity price policy?
In recent years, electricity consumption in Zhejiang Province has always maintained a strong momentum of rapid growth. Although there have been brief adjustments to Zhejiang's electricity consumption due to the impact of the COVID-19 epidemic and Sino-US trade frictions, the overall trend is still rising rapidly.
Taking the highest load as an example, at 13:32 on July 13, the highest electricity load in Zhejiang reached 100.22 billion kilowatts, a year-on-year increase of 8.1%, making it the third province in the country with an electricity load exceeding 100 million kilowatts.
This electricity load level has exceeded the level of developed countries such as Germany and France, and is 4.5 times the total installed capacity of the world's largest hydropower station Three Gorges Hydropower Station .
Under the background of "dual carbon", Zhejiang's power supply and demand situation is facing new major changes and challenges, and the power supply situation is very severe.
On the other hand, the load characteristics of Zhejiang power grid make peak load regulation more difficult.
First, there are "double peaks" . The times appear in two periods: 9:00-11:00 and 13:00-17:00, and the afternoon load peak is slightly higher than the morning peak, which is the maximum load in a day.
▎At noon, the live workers of the power supply company wrapped their bodies tightly to shield themselves from ultraviolet rays
Secondly, the peak-to-trough difference was large. Affected by the increase in purchased electricity and photovoltaic installed capacity, the peak and valley difference of Zhejiang power grid has further increased. In 2020, Zhejiang's maximum daily peak-to-valley difference was 33.14 million kilowatts. It is the province with the largest peak-to-valley difference in the State Grid Corporation of China's system, and the peak load regulation pressure on the power grid is extremely high.
Third, load and new energy output are greatly affected by weather.. The photovoltaic power generation output of Zhejiang Power Grid has exceeded 10 million kilowatts, becoming the second largest power source in Zhejiang, second only to thermal power generation. Since photovoltaic power generation is greatly affected by external weather conditions, the power generation power will change drastically with changes in light intensity. If weather factors such as cloudy days, high temperatures, and no light occur, power generation fluctuations will be particularly obvious.
Looking at the load composition, as a major industrial province in Zhejiang, industrial electricity consumption accounts for "the majority" of the entire society's electricity consumption. From January to June this year, the province's industrial electricity consumption reached 176.412 billion kilowatt hours, a year-on-year increase of 26.29%, accounting for 69.64% of the entire society's electricity consumption. Especially during the peak period of electricity consumption, which is often the peak period of industrial electricity load, the load overlap is high. Once emergencies such as extreme high temperature and sudden drop in incoming power from outside the area occur, it will bring great risks to the balance of supply and demand of the power grid.
The implementation of seasonal electricity price policies can further enrich the power grid regulation methods, make full use of price signals, guide large industrial users to optimize green and low-carbon energy consumption methods, promote the balance of power supply and demand, alleviate the pressure on power grid operation, and further ensure the safety of power operations.
What are the execution scope and main contents of seasonal electricity prices?
The Zhejiang Provincial Development and Reform Commission formulated the seasonal electricity price policy in our province and issued the " Provincial Development and Reform Commission's Notice on Matters Related to Zhejiang Power Grid's 2020-2022 Electricity Transmission and Distribution Price and Sales Price" in November 2020, 2021- In 2022, in July and August of each year, the electricity prices for large industrial electricity at voltage levels of 1-10 kV, 20 kV, 35 kV, 110 kV, 220 kV and above will be reduced by 2 per kilowatt hour. cents, and peak electricity prices rose by 2 cents per kilowatt hour..
The specific electricity prices are shown in the table below
Do other electricity prices have an impact?
does not affect .
Users who are subject to residential electricity prices, agricultural electricity prices, general industrial and commercial electricity prices, and other electricity prices are not subject to seasonal electricity prices and will still implement the original electricity price policy. After the implementation of
, will the electricity bills of large industrial enterprises become more expensive?
The first thing to note is that electricity prices in China are really not expensive. Compared with the 35 OECD countries for which data are available, my country's electricity sales price ranks third from the bottom, about 60% of the average level of each country.
At the same time, our country continues to promote electricity price reform and release the dividends of reform. Compared with 2015, at the end of 2020, electricity prices for large industries dropped by 10.6%, electricity prices for general industry and commerce dropped by 28.6%, and electricity prices for residents and agriculture have remained stable for 15 consecutive years.
For more details, please see "The electricity bills saved for more than 80 years will tell you whether China's electricity prices are expensive" and "Authoritative media joins hands with Xiaoe to discuss China's electricity prices!" 》
The industrial electricity prices in various countries
The sales electricity prices in Zhejiang Province are also at a low level internationally, about 60%-65% of the average level of various countries. Residential electricity prices are far lower than 2.31 yuan in Germany, 1.66 yuan in the UK, 1.65 yuan in Japan, and 0.9 yuan in the United States.
Electricity prices for residents in various countries
In addition to the declining electricity prices, the cost of electricity is also continuing to decline.Zhejiang's private economy is developed and there are many small and medium-sized enterprises. With the transformation and optimization of the industrial structure, the digital economy leads the growth. The high-tech industry is growing rapidly. Labor costs and equipment and raw material costs account for the "highlights" of all operating costs. Electricity costs account for keep falling.
The implementation of seasonal electricity prices in Zhejiang can effectively optimize the allocation of resources. Enterprises can reasonably arrange production time and save electricity bills!
html In March 7 and August, seasonal electricity prices are implemented for peak and valley electricity prices in large industries. The valley electricity price (12 hours) is reduced by 2 cents per kilowatt hour, and the peak electricity price (10 hours) is increased by 2 cents per kilowatt hour. It can be concluded from the following case analysis ：
Conclusion
If the production of large industrial enterprises is stable, in principle the electricity bill can be reduced ;
if more adjustment measures are added, the electricity bill can continue to be reduced .
When the ratio of users' peak and valley electricity consumption is 1:1, the user's electricity bill will remain unchanged before and after the electricity price adjustment;
If the electricity consumption during the off-peak period continues to increase, the user's electricity bill expenditure can be reduced.
｜Case 1｜
A certain metal profile company is a 35 kV power consumption enterprise. The company's production time is mainly concentrated from 9 pm to 8 am the next morning. The monthly electricity consumption in May 2021 was 3.073 million kilowatt hours, peak The valley proportions are: 0.5%, 24.7%, and 74.8% respectively. The total electricity bill for the month was 1.3945 million yuan.
Because the company consumes a relatively high proportion of electricity during the off-peak period, after the seasonal adjustment of electricity prices in July, the total monthly electricity bill was 1.3638 million yuan while production time and electricity remained unchanged, reducing user electricity expenses by 30,700 yuan. .
| Case 2 |
A home furnishing company in Zhejiang has a daily production time of about 9 hours. The monthly electricity consumption in May was 166,000 kilowatt hours. The peak and valley proportions were: 13%, 76%, and 11%. The total electricity bill for the month was 136,500 yuan.
Because the company accounts for the highest proportion of electricity consumption during peak hours, after the seasonal adjustment of electricity prices in July, the total electricity bill in July will be 138,700 yuan, while the production time and electricity volume remain unchanged, and users will increase their electricity bills by 2,200 yuan;
If the user shifts production hours and adjusts the peak-to-trough ratio to 1:1, the user's electricity bill can remain unchanged before and after the electricity price adjustment;
If the production time is adjusted to 7 p.m. - 4 a.m., the user's electricity bill can be reduced by 55,000 Yuan;
If all 9 hours of production time are moved to the low period, the electricity bill can be saved by 81,000 yuan.
Xiao e also appeals here: At a time when power operations are difficult, we hope that large industrial enterprises will optimize the way they use electricity for production and use more off-peak electricity, which can not only support the safety of power operations, but also save energy costs, and jointly participate in "double carbon" action.
Contributed by : Finance Department Wu Binjie / Marketing Department Yuan Ting / Integrated Media Center Wang Xiao / Shaoxing·Shangyu Company Yang Lulu / Wenzhou Company Xu Huiling
Drawing & editing : Deng Tong | Proofreading ：Xiang Dan Yang Zhouyang
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