Peak-to-peak summer power load has repeatedly hit new heights This winter and next spring electricity supply and demand cannot be optimistic

Hao Weiping, deputy director of the National Energy Administration's Power Division, said at the news briefing held by the Energy Bureau today that the peak summer of this year has been generally stable, and the power industry has actively responded to the shortage of power supply in some areas, and overall it has guaranteed the economic and social development of electricity. Demand. The power supply and demand situation in the winter and next spring is not optimistic and needs to be dealt with seriously.
Hao Weiping said that this year's peak summer is generally stable, with the following characteristics:

First, the power load has reached new heights, and the growth rate has continued to operate at a high level. According to statistics, as of the end of August, the nation’s electricity consumption reached 3.12 trillion kWh, an increase of 11.9% year-on-year. Among them, the total electricity consumption in the peak months of June, July and August of summer reached 1.27 trillion kWh, an increase of 11.2% over the same period of last year. During the summer peak season, the country’s electricity load has always remained at a relatively high level. The country’s daily electricity consumption reached 15.097 billion kWh, an increase of 8.15% year-on-year. The main driving force for rapid growth in electricity load is still from high-energy-consuming industries. From January to August, chemical raw materials and products (chemicals), non-metallic mineral products (building materials), ferrous metal smelting and rolling processing (steel smelting), Non-ferrous metal smelting and rolling processing industry (non-ferrous metal smelting), the four major energy-consuming industries total electricity consumption of 1018.7 billion kwh, an increase of 11.7%, accounting for 32.6% of the total electricity consumption in society, and basically the same period last year.

The second is that the power supply has encountered major difficulties and the local contradictions have become prominent. On the one hand, there is a large-scale continuous drought in most parts of the South China Sea. Major hydropower plants including the Three Gorges have late arrivals and low water intake. From June to August, the hydropower generation of the East China Power Grid decreased by 39.1% year-on-year. In the same period of last year, the number of hydropower generation in the Hubei, Hunan, and Jiangxi power grids decreased by 16.9%, 26.0%, 29.2%, and 47.5% respectively over the same period of last year. Regions with a higher proportion of hydropower have more difficulties. On the other hand, the loss level of power generation companies has deepened, and many thermal power companies have experienced difficulties in capital turnover, affecting normal power generation operations to a certain extent. Coal-fired unit shutdowns, declines in output, and unplanned outages have been prominent. Coal shortages have been lost during the peak summer season. Up to 23 units were affected, with an output of 7 million kilowatts, an increase of 13 units and 5.11 million kilowatts from the previous year. In addition, due to the relative lack of power generation and grid constraints, it also affected the electricity supply in a few areas.

Third, the utilization rate of thermal power generators continued to be at a relatively high level, and the hydropower output dropped drastically. Thermal power companies talk about politics and the overall situation, overcome various difficulties, and continuously increase the utilization rate of power generation. From January to August, the average annual utilization time of thermal power equipment in the country was 3557 hours, which is the highest level in the same period since 2008, only 13 hours lower than the same period in 2007. This year's thermal power output reached a high level in recent years. At the same time, the main rivers in the country were generally dry and the average utilization hours of hydropower equipment nationwide was 2,100 hours, which was 177 hours lower than the same period of last year. It was the lowest level in the same period since 2006, among which, year-on-year negative growth occurred in May, July and August. In August, the hydropower generation capacity of power plants above designated size nationwide totaled 65.6 billion kWh, down 14.9% year-on-year.

Hao Weiping said that according to the characteristics of this year, the Energy Bureau has adopted various countermeasures to ensure reasonable power demand:

First, pay close attention to the power supply and demand situation and deploy it in advance. For example, increase the foreign power adjustment in Chongqing and other power-starved regions. Before peak summer, we started to coordinate the efforts of Sichuan and Shanxi to increase the supply of Chongqing. From May onwards, the number of incoming calls from Chongqing increased from 900,000 kilowatts to 1.9 million kilowatts. Also, for example, coordinating the supply of power generation gas to East China. During the period of maximum load, natural gas units in Jiangsu and Zhejiang basically achieved full-load operation and increased effective power supply capacity of 3.6 million kilowatts. In addition, seeking truth from facts has adjusted the capacity of West-to-East power transmission. Due to the shortage of coal and water, the contradiction between Guizhou's power supply has been prominent since the beginning of the year. We coordinated Guangdong Province and China Southern Power Grid Corporation to reduce Guizhou's electricity supply by approximately 30% in advance.

The second is to increase coordination and increase the scale of production. Due to lack of funds, the construction period of the power station has been affected. Through all parties’ efforts, the nation’s newly added power generation capacity from January to August was 47.84 million kilowatts, which was basically the same as the same period of last year (more than 710,000 kilowatts was put into operation). Among them, hydropower was 8.17 million kilowatts, which was 1.33 million kilowatts less than the same period of last year; thermal power was 32.24 million kilowatts, which was 670,000 kilowatts less than the same period of last year, accounting for 67.4% of the newly built power generation capacity of infrastructure, which was a decrease of 2.4 over the same period of the previous year. Percentage points; 1.088 million kilowatts of nuclear power; 6.11 million kilowatts of grid-connected wind power, 1.57 million kilowatts more than the same period of last year; 230,150 kilowatts of new solar photovoltaic power generation, 141,400 kilowatts more than the same period of last year. These power generation installations have played an important role in improving the local power supply.

The third is to speed up the construction of key power transmission and transformation projects and improve power supply to the power grid. From January to August, the capacity of newly added 220 kV and above substation equipment and transmission lines were 110 million kVA and 16,000 km. Among them, a large number of key projects such as the Ningxia-Qingdao 660-kilovolt DC transmission project and the Guangdong Quzhou-Bao'an dual-return 500-kV project were put into operation on schedule, effectively improving the grid's safe power supply capability.

The fourth is to strengthen demand-side management and curb unreasonable demand. In accordance with the country's overall arrangements, it urges all localities to conscientiously implement the national energy-saving and emission-reduction policies, strictly control the use of electricity by backward high-energy-consuming enterprises, stop the production capacity from lagging behind by law, and resolutely limit the unreasonable demand for electricity. We must implement the “restricted guarantees” requirement of the country and include important users of public interest and national security, such as residents’ lives, coal mines, hospitals, schools, and electrified railways, in the basic loads that must be ensured. At the same time, in-depth exploration of the potential for orderly use of electricity, organize the implementation of industrial load as an orderly power resource.

In addition, Hao Weiping said that the power supply and demand situation in the winter and next spring is not optimistic and needs to be dealt with seriously.

According to the forecast of relevant departments, the growth rate of electricity consumption in the fourth quarter of this year may be slightly lower than that in the first half of the year, but it will remain at a relatively high level; currently, the adjustable power generation and storage value of major hydropower stations will be reduced by 3 to 40% compared with the same period of last year. Water supply is limited, and it is difficult to change the output of hydropower in winter than in normal years. Taking these factors into consideration, the situation of electricity supply and demand in the winter and next spring is not optimistic. Considering the uncertainty of winter climate, some regions in the country will still face a tight supply situation with varying degrees of power supply. In particular, the areas with a large proportion of hydropower in the South and China, as well as some coal-producing provinces with low on-grid electricity prices, may experience persistent power shortages. The contradiction between supply and demand is more prominent.

Therefore, the National Energy Administration will work with the relevant departments of the National Development and Reform Commission. On the one hand, according to the power plan, efforts will be made to adjust the power structure, do a good job in power infrastructure, and ensure long-term development; on the other hand, it will closely follow changes in the power situation and cooperate with related departments to increase The coordination of coal and electricity transportation efforts has made efforts to protect the power supply through efforts to increase effective supply and reasonably control energy consumption.