At 18:00 on June 30th, the second unit of the Jin'anqiao hydropower station was officially put into operation to generate electricity, so that Yunnan Province’s power transmission capacity for direct power generation exceeded 30 million kilowatts (to 30.055 million kilowatts). Doubled.
It is understood that the total installed capacity of Yunnan Power Grid has been increased from 10 million kilowatts to 20 million kilowatts for three years, and from 20 million kilowatts to 30 million kilowatts in only two years.
At present, Yunnan Power Grid regulates hydropower, wind power, and photovoltaic installations to account for 66.28% of the total installed capacity, which is nearly 25 percentage points higher than in 2008. The power supply structure has been significantly optimized, and Yunnan has since become a veritable clean energy province.
The reporter noticed from the dispatch daily published by the Yunnan Electric Power Dispatch and Control Center that in June of this year, Yunnan Power Grid unified adjusted hydropower generation reached 7.774 billion kwh, an increase of 46% compared with 5.322 billion kwh in June 2010; In June, Yunnan Power Grid unified hydropower generation was also 99.23% higher than thermal power generation.
According to Zhang Yunhu, deputy director of the marketing department of Yunnan Power Grid Corporation, in January-April this year, when there were “electricity shortages†in many provinces and cities across the country, except in January when the yellow phosphorus and ferroalloy were limited to 200 million kilowatt hours, Yunnan was The province has achieved a liberalization of power supply. In the first quarter, the Yunnan Power Grid Company also increased the transmission of electricity from West to East by 310 million kilowatt-hours, which effectively relieved the Guangdong Power Grid, on the premise of meeting the electricity demand and the reduction of the carbon emission intensity of thermal power companies in the province and the 9.1% year-on-year decrease in thermal power generation. The situation of power shortage.
Relevant data show that after the Xiaowan Hydropower Station was built and generated, the regulation performance of the hydropower stations in the Yunnan Power Grid system has been greatly improved: the proportion of power generation during the flood season and the dry season of the province's hydropower stations has been improved from 64:36 to 50:50; The proportion of annual power also increased from 52.8% to 86%, which greatly reversed the long-standing and difficult-to-solve passive situation in Yunnan's power system. Calculated by the system power balance, Xiaowan Power Station can make a net increase of 6.2 billion kWh in the effective power of the Yunnan Power Grid, which has significant economic and social benefits.
The gradual increase in the proportion of Yunnan's clean energy generating units has increasingly demonstrated the leading role of energy saving and emission reduction in the province. During the "11th Five-Year Plan" period, the proportion of Yunnan's hydropower-based renewable energy consumption has reached 32%, which has reached the country's 2030 renewable energy development strategic goals.
Relevant data also show the energy saving and emission reduction effectiveness of the increasing clean energy in Yunnan.
In the three years since the implementation of energy-saving power generation dispatch in 2008, Yunnan Power Grid has saved about 11.4 million tons of standard coal, and the standardized coal consumption of coal-fired power generation has dropped from 344 g/kWh in 2005 to 313.5 g/kWh in 2010. The annual renewable energy ratio of renewable energy in the network has increased from 46.97 percent in 2009 to 56.82 percent, and the ratio of hydrothermal power has increased from 0.93 in 2009 to 1.31.
Zhao Ming, technical expert of the Yunnan Power Grid Corporation, said in an interview that, with the substantial increase in the proportion of clean energy, energy conservation efficiency point of view, saving a lot of coal resources, from the perspective of environmental benefits, while ensuring the economic development of the province, while reducing A large amount of carbon dioxide and carbon dioxide* are discharged, which greatly reduces the pollution to the atmosphere. In the future, the proportion of clean energy will further increase. Yunnan has become a veritable green energy province and will continue to play a better supporting role in the province's economic and social development, the construction of the bridgehead and the transmission of power from the west to the east.
The power layout leads the development of high-energy-carrying industries In the symposium on Yunnan's hydropower safety and accelerating hydropower construction held in June of this year, Luo Zhengfu, member of the Standing Committee of the Provincial Party Committee and executive deputy governor, pointed out that it is necessary to adjust and improve the layout of the productive forces and scientifically allocate electricity. Resources.
Indeed, while Yunnan has its rich hydropower resources, it is also faced with the problem of how to turn resource advantages into development advantages. In the process of power distribution, determining a reasonable power supply structure has also become a problem in Yunnan's power supply and demand.
Relevant electric power experts believe that the increase in the proportion of clean energy has both advantages and disadvantages. The disadvantage is that the proportion of clean energy such as hydropower has increased, and its instability has also increased. The reliability of power supply has been relatively affected, but at the same time, the installed capacity of hydropower has increased. The system's peaking flexibility is correspondingly increased, and the increase in wind power capacity can help alleviate the shortage of water and electricity in dry seasons.
The reporter learned that thanks to the solid work of storing coal and storing water in the past year, this year, in the face of the nation’s electric power shortage, Yunnan hydropower has well balanced its own coal shortage problem, but if the incoming water in the drought season in Yunnan declines, the thermal power support will be poor. As the load of West-East electricity transmission continues to increase, Yunnan's overall power supply may be tight, and Yunnan will be hardly able to look like "outstanding" in this year's national electricity shortage.
The news from the Yunnan Dispatching Control Center also confirmed that the impact of hydropower is to "double-edged sword."
According to reports, since June of this year, due to the start of the implementation of the flood season electricity price in the province, the province's high-energy-carrying enterprises are more competitive than Other provinces in the country, resulting in the high operating rate of high-yield companies such as yellow phosphorus in the province. Exuberant: At the same time, due to the lack of capacity of small-scale hydropower generation due to the delay in entering Yunnan, the demand for main grid power supply has increased. Affected by these factors, the power supply in the province has reached a record high.
At present, as the supply of coal to the Qujing area has not been able to return to normal, the hydropower generation capacity has fluctuate greatly, and the demand in and out of the province has been strong. The power supply has been insufficient in the middle and early June. To ensure smooth power supply, June 8th, Yunnan The Electric Power Dispatching Control Center initiated planned electricity use measures. After entering late, with the increase in hydropower water supply, the second unit of Jin'anqiao was put into operation, and Guangdong Electric Power was reduced. The province's power supply reached a basic balance. On June 23, the entire province canceled plans to use electricity. From June 8th to 22nd, the province had a total limit of 80 million kilowatt-hours of electricity and a maximum load of 924,000 kwh.
Last year, 580 rivers were cut off in Yunnan during a four-year unsolved drought in the four seasons. 169 small reservoirs and 2,480 dams completely dried up. Yunnan's hydropower generation has dropped significantly. At that time, the data of the Yunnan Unified Power Network showed that at the beginning of April, the total power generation capacity of the Yunnan Power Grid was adjusted to less than 50 million kilowatt-hours, which was about 30 million kilowatt-hours lower than normal.
The absence of major hydropower has enabled Yunnan to implement planned electricity use early. From January to April of the same year, yellow phosphorus, ferroalloy, calcium carbide, and industrial silicon in the major power industry in Yunnan Province have suspended power production in the whole industry, and the cement industry has reduced the load by more than half. The steel industry and electrolytic aluminum, lead and zinc have reduced the load by non-ferrous metal smelting. Electricity and chemical fertilizer wheels were parked, and some key projects and the sale of electricity for residents of counties and districts had been affected to varying degrees.
According to industry experts, taking into account the power balance between wet season and dry season, in the long run in Yunnan, the “12th Five-Year Plan†and “Thirteenth Five-Year Plan†still need to properly develop thermal power to balance the abundance of dry and dry contradiction and to better enhance power supply. reliability. (Li Li correspondent Wang Junrong Dai Songping)
It is understood that the total installed capacity of Yunnan Power Grid has been increased from 10 million kilowatts to 20 million kilowatts for three years, and from 20 million kilowatts to 30 million kilowatts in only two years.
At present, Yunnan Power Grid regulates hydropower, wind power, and photovoltaic installations to account for 66.28% of the total installed capacity, which is nearly 25 percentage points higher than in 2008. The power supply structure has been significantly optimized, and Yunnan has since become a veritable clean energy province.
The reporter noticed from the dispatch daily published by the Yunnan Electric Power Dispatch and Control Center that in June of this year, Yunnan Power Grid unified adjusted hydropower generation reached 7.774 billion kwh, an increase of 46% compared with 5.322 billion kwh in June 2010; In June, Yunnan Power Grid unified hydropower generation was also 99.23% higher than thermal power generation.
According to Zhang Yunhu, deputy director of the marketing department of Yunnan Power Grid Corporation, in January-April this year, when there were “electricity shortages†in many provinces and cities across the country, except in January when the yellow phosphorus and ferroalloy were limited to 200 million kilowatt hours, Yunnan was The province has achieved a liberalization of power supply. In the first quarter, the Yunnan Power Grid Company also increased the transmission of electricity from West to East by 310 million kilowatt-hours, which effectively relieved the Guangdong Power Grid, on the premise of meeting the electricity demand and the reduction of the carbon emission intensity of thermal power companies in the province and the 9.1% year-on-year decrease in thermal power generation. The situation of power shortage.
Relevant data show that after the Xiaowan Hydropower Station was built and generated, the regulation performance of the hydropower stations in the Yunnan Power Grid system has been greatly improved: the proportion of power generation during the flood season and the dry season of the province's hydropower stations has been improved from 64:36 to 50:50; The proportion of annual power also increased from 52.8% to 86%, which greatly reversed the long-standing and difficult-to-solve passive situation in Yunnan's power system. Calculated by the system power balance, Xiaowan Power Station can make a net increase of 6.2 billion kWh in the effective power of the Yunnan Power Grid, which has significant economic and social benefits.
The gradual increase in the proportion of Yunnan's clean energy generating units has increasingly demonstrated the leading role of energy saving and emission reduction in the province. During the "11th Five-Year Plan" period, the proportion of Yunnan's hydropower-based renewable energy consumption has reached 32%, which has reached the country's 2030 renewable energy development strategic goals.
Relevant data also show the energy saving and emission reduction effectiveness of the increasing clean energy in Yunnan.
In the three years since the implementation of energy-saving power generation dispatch in 2008, Yunnan Power Grid has saved about 11.4 million tons of standard coal, and the standardized coal consumption of coal-fired power generation has dropped from 344 g/kWh in 2005 to 313.5 g/kWh in 2010. The annual renewable energy ratio of renewable energy in the network has increased from 46.97 percent in 2009 to 56.82 percent, and the ratio of hydrothermal power has increased from 0.93 in 2009 to 1.31.
Zhao Ming, technical expert of the Yunnan Power Grid Corporation, said in an interview that, with the substantial increase in the proportion of clean energy, energy conservation efficiency point of view, saving a lot of coal resources, from the perspective of environmental benefits, while ensuring the economic development of the province, while reducing A large amount of carbon dioxide and carbon dioxide* are discharged, which greatly reduces the pollution to the atmosphere. In the future, the proportion of clean energy will further increase. Yunnan has become a veritable green energy province and will continue to play a better supporting role in the province's economic and social development, the construction of the bridgehead and the transmission of power from the west to the east.
The power layout leads the development of high-energy-carrying industries In the symposium on Yunnan's hydropower safety and accelerating hydropower construction held in June of this year, Luo Zhengfu, member of the Standing Committee of the Provincial Party Committee and executive deputy governor, pointed out that it is necessary to adjust and improve the layout of the productive forces and scientifically allocate electricity. Resources.
Indeed, while Yunnan has its rich hydropower resources, it is also faced with the problem of how to turn resource advantages into development advantages. In the process of power distribution, determining a reasonable power supply structure has also become a problem in Yunnan's power supply and demand.
Relevant electric power experts believe that the increase in the proportion of clean energy has both advantages and disadvantages. The disadvantage is that the proportion of clean energy such as hydropower has increased, and its instability has also increased. The reliability of power supply has been relatively affected, but at the same time, the installed capacity of hydropower has increased. The system's peaking flexibility is correspondingly increased, and the increase in wind power capacity can help alleviate the shortage of water and electricity in dry seasons.
The reporter learned that thanks to the solid work of storing coal and storing water in the past year, this year, in the face of the nation’s electric power shortage, Yunnan hydropower has well balanced its own coal shortage problem, but if the incoming water in the drought season in Yunnan declines, the thermal power support will be poor. As the load of West-East electricity transmission continues to increase, Yunnan's overall power supply may be tight, and Yunnan will be hardly able to look like "outstanding" in this year's national electricity shortage.
The news from the Yunnan Dispatching Control Center also confirmed that the impact of hydropower is to "double-edged sword."
According to reports, since June of this year, due to the start of the implementation of the flood season electricity price in the province, the province's high-energy-carrying enterprises are more competitive than Other provinces in the country, resulting in the high operating rate of high-yield companies such as yellow phosphorus in the province. Exuberant: At the same time, due to the lack of capacity of small-scale hydropower generation due to the delay in entering Yunnan, the demand for main grid power supply has increased. Affected by these factors, the power supply in the province has reached a record high.
At present, as the supply of coal to the Qujing area has not been able to return to normal, the hydropower generation capacity has fluctuate greatly, and the demand in and out of the province has been strong. The power supply has been insufficient in the middle and early June. To ensure smooth power supply, June 8th, Yunnan The Electric Power Dispatching Control Center initiated planned electricity use measures. After entering late, with the increase in hydropower water supply, the second unit of Jin'anqiao was put into operation, and Guangdong Electric Power was reduced. The province's power supply reached a basic balance. On June 23, the entire province canceled plans to use electricity. From June 8th to 22nd, the province had a total limit of 80 million kilowatt-hours of electricity and a maximum load of 924,000 kwh.
Last year, 580 rivers were cut off in Yunnan during a four-year unsolved drought in the four seasons. 169 small reservoirs and 2,480 dams completely dried up. Yunnan's hydropower generation has dropped significantly. At that time, the data of the Yunnan Unified Power Network showed that at the beginning of April, the total power generation capacity of the Yunnan Power Grid was adjusted to less than 50 million kilowatt-hours, which was about 30 million kilowatt-hours lower than normal.
The absence of major hydropower has enabled Yunnan to implement planned electricity use early. From January to April of the same year, yellow phosphorus, ferroalloy, calcium carbide, and industrial silicon in the major power industry in Yunnan Province have suspended power production in the whole industry, and the cement industry has reduced the load by more than half. The steel industry and electrolytic aluminum, lead and zinc have reduced the load by non-ferrous metal smelting. Electricity and chemical fertilizer wheels were parked, and some key projects and the sale of electricity for residents of counties and districts had been affected to varying degrees.
According to industry experts, taking into account the power balance between wet season and dry season, in the long run in Yunnan, the “12th Five-Year Plan†and “Thirteenth Five-Year Plan†still need to properly develop thermal power to balance the abundance of dry and dry contradiction and to better enhance power supply. reliability. (Li Li correspondent Wang Junrong Dai Songping)
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