■ Home lighting as far as possible to use high-efficiency, low-energy-consuming home appliances, away from home in time to turn off the power, reduce standby power consumption. New Express reporter Li Xiaomeng /Photo
Ten years of electricity shortage How is Guangdong's "electricity"?
Coal power generation enterprises generate electricity at any cost, power grid companies arrange for power plants in the province to generate electricity according to the maximum capacity of the unit, and affected industrial enterprises wait for electricity in an orderly manner... This is the situation of all parties in Guangdong when the electricity shortage situation that has not been encountered in ten years comes. Guangdong residents are not affected by this round of orderly electricity consumption, and the planned power outage is mainly for the maintenance of equipment, not power rationing.
■ Written by: New Express reporter Wang Tong
Correspondent Shen Dian
■ Photo: New Express reporter Li Xiaomeng
Electricity for residents
Residents are not affected
A planned power outage is not a power cut
The Guangdong Provincial Energy Bureau previously said that this round of orderly electricity consumption is currently mainly for industrial users, and residential users have not been affected. However, some residents told reporters that they had received a notice that the community would implement the planned power outage.
China Southern Power Grid Guangdong Power Grid responded on the official public account that this is a planned power outage, rather than an orderly use of electricity. "Power grid equipment also has a lifespan, and it may also be 'sick', and regular physical examinations are very necessary for power grid equipment." The relevant person in charge of Guangdong Power Grid pointed out that the "regular physical examination" of the equipment, also known as planned maintenance, requires a planned power outage. At the same time, with the development, the power grid also needs to be improved and transformed, in the process of "small network" into "large network", the need for load access, equipment new, line transformation, which may also plan power outages.
Planning a power outage is a precisely coordinated job. The power supply bureau will balance the needs of multiple power outages, determine the most optimized power outage plan, and strive to make a single power outage affect the least number of users, so that a single user has the fewest number of power outages, so that one stop can be used multiple times. Then, according to the scheme, the optimal operation mode of the power grid is optimized, and after the final power outage is confirmed, the relevant customers will be notified in advance and the relevant power outage information will be released. The power supply sector will also choose more forms and technologies for power transfer and live operations to minimize the impact on residential users.
Industrial electricity
1
Orderly electricity consumption enterprises:
We adjusted the schedule, produced at night, and reduced losses
"(Orderly use of electricity) has a particularly large impact on the production and operation of our enterprises." At night, on the production line of Foshan Blue Arrow Electronics Co., Ltd. (hereinafter referred to as "Blue Arrow Company"), a series of semiconductor integrated circuit discrete devices are being produced in an orderly manner. Blue Arrow Company is in the sequence of orderly electricity consumption in Guangdong. Zhang Guoguang, deputy general manager of the company, told the New Express that thanks to good communication, production and operation have not been particularly affected.
"Limited electricity began in July, and September was relatively frequent. But it's all a day or two in advance by texting or calling for notification. The most urgent time is the same day telephone notification, not much. "Zhang Guoguang said that power curtailment is generally during the day, from 8 a.m. to 10 p.m., and there has been no 24-hour power curtailment a day." Because the company was working three shifts, we adjusted the schedule, produced at night, reduced the loss, and the electricity price was cheaper at night. The company's offices are now not air-conditioned, and we have bought dozens of fans to cool down. Zhang Guoguang was impressed by the fact that the local power supply bureau took flexible measures, "There was a rain around the Mid-Autumn Festival, the temperature was not very high, the power supply bureau called us, you can use electricity in advance." This happens from time to time."
"We understand the current situation of electricity shortages, and we understand the power rationing." Zhang Guoguang expects that the weather will cool down quickly and he will be able to restore normal electricity.
In the intelligent workshop of Shenghong Technology (Huizhou) Co., Ltd. (hereinafter referred to as "Shenghong Technology") in Huiyang District, Huizhou, the drilling machine and VCP automatic production line equipment are operating normally. In the second quarter of this year, the output value of Shenghong Technology increased by about 35% year-on-year. "Before the implementation of orderly electricity use, the staff of The Guangdong Huiyang Power Supply Bureau of China Southern Power Grid communicated and consulted with us many times and formulated an orderly power consumption plan for us." Zhang Jianzhong, director of Shenghong Technology, introduced that the factory area also has targeted adjustments to different production lines and scheduling methods to ensure that output and product quality are not affected.
2
Guangdong Power Grid:
Make every effort to arrange the maximum capacity of power plants to generate electricity, and strive to send more electricity between provinces
Orderly use of electricity is not a lone struggle of enterprises, and there are also a group of people working the power grid service side.
"We have a real-time monitoring system, and if the electricity is not tight, it will notify the company immediately." Cao Guixiang, deputy manager of the power supply service center of the Chancheng Power Supply Bureau of Foshan, Guangdong Province, said that the bureau has a smooth mechanism to communicate with enterprises through various channels such as telephones, text messages, government notices, and street notices, make orderly electricity use arrangements, and do everything possible to meet the production of enterprises. "We make every effort to arrange for power plants in the province to generate electricity according to the maximum capacity of the unit, and at the same time give full play to the advantages of the large platform of resource optimization of China Southern Power Grid Corporation, and actively strive for more power transmission between provinces." Bao Bo of the Power Dispatching and Control Center of China Southern Power Grid Guangdong Power Grid Company said.
The reporter learned that at present, it is the peak period of the "Golden Nine Silver Ten" orders, especially the demand for electricity in the secondary and tertiary productions continues to be strong. From January to August, the province's electricity consumption was 525.273 billion kWh, an increase of 17.33% year-on-year, of which the electricity consumption of secondary and tertiary production increased by 18.30% and 23.13% respectively.
In order to cope with the current situation, Guangdong Power Grid has increased 95598 agents, do a good job in customer communication, and strive for the active cooperation and understanding of enterprises; at the same time, make full use of meteorological resource information, follow up the meteorological situation on a rolling basis, strengthen supply and demand research and load trend forecast analysis, give priority to organizing market-oriented demand response, and tap the potential of local power generation and demand-side response.
3
Coal power plants:
In order to maintain power supply and heat supply, we do not count the cost
High coal prices, inverted costs, problems in the operation of coal power companies, continuous high temperatures, and surging electricity demand with economic recovery are the three major reasons for Guangdong's electricity shortage. Liu Wensheng, deputy director of the Guangdong Provincial Energy Bureau, said that about 45% of Guangdong's electricity comes from coal power. At the upstream production end, a number of coal power enterprises have assumed social responsibility.
"Since the beginning of this year, the coal market resources have continued to be tight and prices have soared. International coal prices have risen to an unprecedented height, and domestic coal prices have risen frequently, from a stage low of 536 yuan / ton to a historical high of 1500 yuan / ton (5000 kcal)," Said Chen Jian, general manager of Guangzhou Hengyun Integrated Energy Sales Co., Ltd., who said this set of amazing data.
According to reports, in the first 8 months, Hengyun Power Plant purchased 2.4 million tons of coal, the purchase volume increased by 17% year-on-year, and the average purchase price rose by more than 80% year-on-year. "In order to maintain power and heat supply, we do not care about the cost." On September 15, the chairman of the group personally led a team to Inner Mongolia, the main coal-producing area, to implement thermal coal resources and ensure the demand for production coal. Up to now, a total of 247 tons of coal have been purchased, with an average calorific value of 4913 kcal.
According to statistics, as of September 22, 2021, Hengyun Power Plant has completed a total of 4.004 billion kWh of on-line electricity, and completed 73.33% of the annual planned electricity of 5.46 billion kWh, compared with 3.645 billion kWh in the same period last year, an increase of 9.8% year-on-year.
expert
Clean energy power generation is developing steadily, and citizens are called upon to save electricity
"At present, there are structural problems in our electricity production." Fan Yongchun, deputy chief engineer of China Energy Construction Group Guangdong Electric Power Design and Research Institute Co., Ltd., told the New Express that Guangdong actively implements the dual-carbon strategy, and will try to use clean energy and renewable energy as much as possible in the future to avoid excessive dependence on coal and natural gas for power generation.
"Photovoltaic power generation and offshore wind power are the advantages of Guangdong locally, and when the development cost is reduced, it will greatly improve the structural problems." Fan Yongchun introduced that at present, Guangdong has achieved parity in photovoltaic power generation, and the technology is relatively leading. Offshore wind power started relatively late, but the progress is relatively fast, and it is believed that parity can be achieved soon. Grid parity means that the cost of photovoltaic power generation or offshore wind power is basically the same as that of coal power generation, and large-scale application is not far away. According to Fan Yongchun, during the "14th Five-Year Plan" period, the contribution rate of the two to Guangdong's electric power will reach about 30%.
Fan Yongchun also introduced that Guangdong is promoting the reform of the electricity market. The user side will be closely linked to the supply side, and enterprises can purchase electricity from the power supply end according to the time-of-use electricity price. It is worth pointing out that it is very difficult to predict the use of electricity one month in advance, and the current technology can only do one or two days of advance notice. "Electricity cannot be stored in most cases, which makes it very difficult to predict, so the power grid should be coordinated and communicated." According to reports, with the development of big data, accurate predictions may be realized, "big data needs a year or two of data collection time, and we are now at this stage."
Electricity supply is tight, as ordinary residents, what can we do? Fan Yongchun said that he practiced what he preached and saved electricity. "Everyone's living standards continue to improve, but the price of electricity has not been adjusted, resulting in energy-saving awareness is not too high." For example, sometimes the air conditioner that opens 25 ° C at night is covered with a thick quilt, which is completely unnecessary, generally open 26 ° C, 27 ° C on the line. You can't open the window when turning on the air conditioner, and the machine runs in a sealed space that saves the most electricity. Refrigerators should also not be switched on and off frequently. Fan Yongchun also advocated that non-essential lighting projects should be appropriately reduced, and the display time of large building façade lighting can be shortened.