Recently, the State Electricity Regulatory Commission compiled and issued the "Annual Report of the Power Generation Business in 2010" (hereinafter abbreviated as the "Announcement"), reflecting in detail the power supply development, power supply structure, power generation market distribution, production and operation, reorganization and merger, and related industry development in 2010. The basic situation, as well as the overall situation of power supply development and structure during the "Eleventh Five-Year" period.
The "Announcement" shows that during the "11th Five-Year Plan" period, China's power generation capacity has been rapidly developed. Compared with the 517.18 million kilowatts at the end of 2005, the cumulative growth for the past five years was 86.86%, and the accumulated net increase in capacity for the past five years was 449.23 million kilowatts. An increase of 13.32%, with an average annual net increase of 89.85 million kilowatts. By the end of 2010, the installed capacity in North China, East China and Central China had exceeded 200 million kilowatts in the country, 170 million kilowatts in the southern region, and installed capacity in the northwest and northeast regions were all close to 90 million kilowatts.
In 2010, the national thermal equipment utilization hours were 5031 hours, an increase of 166 hours compared with the previous year, and it was also the first rise in the utilization of thermal equipment since 2004. In provinces (autonomous regions and municipalities), the provinces in which the average utilization of thermal power equipment is more than 5,200 hours are Ningxia (6168 hours), Jiangsu (5647 hours), Qinghai (5615 hours), and Guizhou (5560 hours). Basically, the provinces are concentrated in the eastern and western provinces where the proportion of fossil-fired power plants is relatively high, or where there is a large drop in hydropower output. The provinces (regions) of Fujian (4300 hours), Heilongjiang (4385 hours), and Jiangxi (4392 hours) are the provinces with the lowest average utilization hours of thermal power equipment. Among them, Fujian, Sichuan, Hubei, and Hunan have higher hydropower generating units. Provinces, while the number of thermal power utilization hours in Inner Mongolia is only 4562 hours.
The "Announcement" shows that during the "Eleventh Five-Year Plan" period, investment in power engineering construction has obviously tilted toward non-fossil energy sources. The total investment in hydropower, nuclear power and wind power accounts for the proportion of power investment from 29% in 2005 to 63% in 2010. The amount of investment in thermal power investment has rapidly decreased from 227.1 billion yuan in 2005 to 143.7 billion yuan in 2010. 36.7%.
For the first time, the "Announcement" analyzed the adequacy of power generation installed throughout the country. From a national perspective, there is ample capacity for power generation. The total installed capacity and maximum load ratio in North China, Northeast China, Northwest China, East China, Central China, and South China were 1.22, 1.43, 1.87, 1.10, 1.46, and 1.31, respectively, and the northeast and northwest regions were obviously abundant. The situation in each province within the region is affected by resource endowments and load characteristics, and the balance is uneven. Inter-provincial (regional) resource allocation is required.
The "Announcement" shows that China's power peak-to-valley difference is getting bigger and bigger. While the development of renewable energy such as wind power and the large increase of thermal power units, the issue of power peak regulation in various regions is becoming more and more prominent. In 2010, China Southern Power Grid adjusted the maximum load of 104.36 million kilowatts, and the maximum peak-to-valley difference was 37.47 million kilowatts. The maximum peak-to-valley difference and the maximum load ratio reached 35.91%. Hainan Power Grid adjusted the maximum load of 2.3 million kilowatts, and the maximum peak-to-valley difference was 1.13 million kilowatts. The maximum peak-to-valley difference and the maximum load ratio were 49.11%. In addition, in recent years, due to the increasing allocation of resources across regions, the percentage of electricity received outside of some regions has gradually increased. In December 2010, the maximum power load of Liaoning Power Grid was 20.78 million kilowatts, and the external power was 8.24 million kilowatts. The ratio of incoming power to the highest load was 40.52%, ranking the highest in the country.
The "Announcement" disclosed that the compensation funds for auxiliary services nationwide totaled 1.28 billion yuan. Since the implementation of power plant auxiliary service compensation, various power generation enterprises have further accelerated technological transformation, actively participated in the invocation of auxiliary services, improved the quality of power system operations, and promoted the safe and stable economic operation of the power system. The auxiliary service compensation mechanism promotes the power generation enterprises to pay more attention to the management of unplanned outages. From the point of view of power generation companies, the number of stand-alone unplanned outages and time for stand-alone power companies is relatively high, and there are fewer central power generation groups. Seen from the nature of the unit, the number of unplanned outages and time for small units is obviously more than that for large units. The number of unplanned outages and time for thermal power units, especially gas units, is more than that for hydropower and nuclear power units. From a regional point of view, the number and duration of unplanned outages of single-engine unplanned outages in Shandong and Inner Mongolia power grids are much higher than in other regions, with the highest number of non-stop single-machines reaching 18, and the number of non-planned outages and time of stand-alone aircraft in the East China region is relatively small.
The "Announcement" shows that during the "11th Five-Year Plan" period, China's power generation capacity has been rapidly developed. Compared with the 517.18 million kilowatts at the end of 2005, the cumulative growth for the past five years was 86.86%, and the accumulated net increase in capacity for the past five years was 449.23 million kilowatts. An increase of 13.32%, with an average annual net increase of 89.85 million kilowatts. By the end of 2010, the installed capacity in North China, East China and Central China had exceeded 200 million kilowatts in the country, 170 million kilowatts in the southern region, and installed capacity in the northwest and northeast regions were all close to 90 million kilowatts.
In 2010, the national thermal equipment utilization hours were 5031 hours, an increase of 166 hours compared with the previous year, and it was also the first rise in the utilization of thermal equipment since 2004. In provinces (autonomous regions and municipalities), the provinces in which the average utilization of thermal power equipment is more than 5,200 hours are Ningxia (6168 hours), Jiangsu (5647 hours), Qinghai (5615 hours), and Guizhou (5560 hours). Basically, the provinces are concentrated in the eastern and western provinces where the proportion of fossil-fired power plants is relatively high, or where there is a large drop in hydropower output. The provinces (regions) of Fujian (4300 hours), Heilongjiang (4385 hours), and Jiangxi (4392 hours) are the provinces with the lowest average utilization hours of thermal power equipment. Among them, Fujian, Sichuan, Hubei, and Hunan have higher hydropower generating units. Provinces, while the number of thermal power utilization hours in Inner Mongolia is only 4562 hours.
The "Announcement" shows that during the "Eleventh Five-Year Plan" period, investment in power engineering construction has obviously tilted toward non-fossil energy sources. The total investment in hydropower, nuclear power and wind power accounts for the proportion of power investment from 29% in 2005 to 63% in 2010. The amount of investment in thermal power investment has rapidly decreased from 227.1 billion yuan in 2005 to 143.7 billion yuan in 2010. 36.7%.
For the first time, the "Announcement" analyzed the adequacy of power generation installed throughout the country. From a national perspective, there is ample capacity for power generation. The total installed capacity and maximum load ratio in North China, Northeast China, Northwest China, East China, Central China, and South China were 1.22, 1.43, 1.87, 1.10, 1.46, and 1.31, respectively, and the northeast and northwest regions were obviously abundant. The situation in each province within the region is affected by resource endowments and load characteristics, and the balance is uneven. Inter-provincial (regional) resource allocation is required.
The "Announcement" shows that China's power peak-to-valley difference is getting bigger and bigger. While the development of renewable energy such as wind power and the large increase of thermal power units, the issue of power peak regulation in various regions is becoming more and more prominent. In 2010, China Southern Power Grid adjusted the maximum load of 104.36 million kilowatts, and the maximum peak-to-valley difference was 37.47 million kilowatts. The maximum peak-to-valley difference and the maximum load ratio reached 35.91%. Hainan Power Grid adjusted the maximum load of 2.3 million kilowatts, and the maximum peak-to-valley difference was 1.13 million kilowatts. The maximum peak-to-valley difference and the maximum load ratio were 49.11%. In addition, in recent years, due to the increasing allocation of resources across regions, the percentage of electricity received outside of some regions has gradually increased. In December 2010, the maximum power load of Liaoning Power Grid was 20.78 million kilowatts, and the external power was 8.24 million kilowatts. The ratio of incoming power to the highest load was 40.52%, ranking the highest in the country.
The "Announcement" disclosed that the compensation funds for auxiliary services nationwide totaled 1.28 billion yuan. Since the implementation of power plant auxiliary service compensation, various power generation enterprises have further accelerated technological transformation, actively participated in the invocation of auxiliary services, improved the quality of power system operations, and promoted the safe and stable economic operation of the power system. The auxiliary service compensation mechanism promotes the power generation enterprises to pay more attention to the management of unplanned outages. From the point of view of power generation companies, the number of stand-alone unplanned outages and time for stand-alone power companies is relatively high, and there are fewer central power generation groups. Seen from the nature of the unit, the number of unplanned outages and time for small units is obviously more than that for large units. The number of unplanned outages and time for thermal power units, especially gas units, is more than that for hydropower and nuclear power units. From a regional point of view, the number and duration of unplanned outages of single-engine unplanned outages in Shandong and Inner Mongolia power grids are much higher than in other regions, with the highest number of non-stop single-machines reaching 18, and the number of non-planned outages and time of stand-alone aircraft in the East China region is relatively small.
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