The Development and Reform Commission issued a notice on the power operation regulation work in 2011. The experts stated that the implementation of the policy still needs a process!
On April 15, the National Development and Reform Commission issued a notice on the adjustment of power operation in 2011. Actively promoting energy-saving and emission reduction in power generation is an important part of the notification. The notice requires that the power generation industry, as a key area of ​​energy conservation and emission reduction, must continue to take effective measures to fully tap the potential for savings and strive to reduce coal consumption and pollutant emissions.
“The National Development and Reform Commission has taken energy saving and emission reduction in the field of power generation from three aspects: energy-saving generation scheduling, differential power planning, and alternative power generation. This is very much in place.†Zhang Jianhua, director of the Transmission and Distribution Systems Research Institute of North China Electric Power University, told reporters, “But The introduction of the notification does not mean that the energy saving and emission reduction work in the power generation field will be fully implemented, and it will also have some problems in the specific implementation process."
The energy-saving work of power generation enterprises has started. Zhang Jianhua told this reporter that the current work on energy-saving power generation dispatch, differential power planning, and alternative power generation has started. "China has achieved certain achievements in energy-saving power generation dispatching. China Southern Power Grid pilot work has been advancing, the State Grid has also included energy-saving power generation scheduling into its strong smart grid planning." Zhang Jianhua said.
It is understood that through energy-saving power generation dispatching, China Southern Power Grid has saved 6.33 million tons of standard coal from 2008 to October 2010, which is equivalent to reducing carbon dioxide and sulfur dioxide emissions by 13.93 million tons and 120,000 tons, respectively. The contribution rate of energy-saving power generation dispatch to the reduction of coal consumption of GDP in the five southern provinces in 2009 was 5.6%.
State Grid divides energy-saving generation scheduling into three phases: From 2009 to 2011, the company will implement a day-to-day scheduling plan and safety check that meets the requirements of energy-saving generation dispatch and the electricity market, and carry out trials for energy-saving generation dispatch; 2012-2015, the company System dispatching agencies at or above the provincial level have built an intelligent dispatching technical support system, implemented dynamic management of the rotating spares of the grid-connected units, improved the controllability and economy of the unit operations, and promoted energy-saving power generation dispatch; 2016-2020, Completed the establishment of a corporate system province Above the level of integrated intelligent dispatching system, conventional unit rapid adjustment and deep peaking and other flexible operating techniques have been widely used to fully realize energy-saving generation scheduling.
"Compared with energy-saving generation scheduling and differential power planning, alternative power generation is more innovative and eye-catching. Although it has only been implemented since the second half of 2010, it has achieved remarkable results," said Zhang Jianhua.
It is understood that in September 2010, Jiangsu Power Grid took the lead in the implementation of "replacement power generation" in the country. The first time it took a total of 433.5 million kWh to replace and negotiate alternative electricity, it is expected to save about 22,000 tons of standard coal.
Zhang Jianhua told this reporter that the replacement of high-energy-consuming small units by high-efficiency units will not only save electricity consumption, reduce environmental pollution, but also bring profit to small-capacity power plants. "Alternative power generation is more reasonable than simply shutting down small units because it can reduce some social problems, such as the re-employment of workers in power plants," said Zhang Jianhua.
There are still certain problems in the implementation of “For the example of wind power that belongs to clean energy, starting from the perspective of energy conservation and emission reduction, according to relevant policies, it should be arranged in full amount of electricity on the grid. However, there are also intermittent and unstable problems in the integration of wind power. When grid-connected power generation, we must consider the use of conventional power and energy storage facilities for its peak load adjustment.†Zhang Jianhua told this reporter, “This involves not only technical issues, but also related to the national policy and the coordination of the entire power system management.â€
It is understood that in order to massively accept clean energy and grid-connected power generation, the grid is inevitably undergoing peak shaving. But for many grids, peaking means increased local energy consumption. Taking the North China Power Grid as an example, 94% of the power grid is a thermal power unit. Since the power generated by the peak-shaving unit is reduced and the efficiency is reduced, this will affect the enthusiasm of peak-shaving for thermal power plants that have already suffered heavy losses. “Conventional thermal power units for large-scale wind power peak regulation not only mean reduction in power generation output and profit reduction, but also due to the reduction of unit efficiency due to peaking demand, increase of coal consumption, and increase of pollutant emissions, then when the government’s energy efficiency assessment, Should be treated differently, using different assessment indicators, at the same time should consider the appropriate compensation measures." Zhang Jianhua said.
In energy conservation and emission reduction, it is not only these. In order to achieve energy-saving and emission reduction problems, "small thermal power" in the power supply should stop generating power or shut down. However, the power situation in China is complex, especially in the peak periods of summer and winter electricity, and the power gap is very large. Therefore, although the small units have the problem of high coal consumption and heavy pollution, they can still play the roles of peak load reduction and valley filling, so they are in power supply. In times of stress, small units may even subsidize power generation.
"From the perspective of energy conservation and emission reduction, small units should be shut down, but from the actual situation, small thermal power has its value." Zhang Jianhua said, "So how to balance these conflicts, including compensation mechanisms, assessment mechanisms, including many issues It is that we need further detailed consideration."
Electricity demand side management is an effective energy-saving and emission reduction measure, but it is still not mature enough. “If the demand-side management can effectively stabilize the power load curve, then it will not result in light-load and low-efficiency operation for most of the time to build a large number of power facilities to meet only a few tens of hours of power peaks in a year. "Zhang Jianhua said," Therefore, vigorously promoting power demand side management is of great significance for energy saving and emission reduction of electricity."
Market-oriented reform is the final direction of the implementation of energy-saving emission reduction measures, and ultimately will be adjusted in accordance with market laws and economic laws. Zhang Jianhua stressed that, "For example, when the electricity is low, according to energy-saving emission reduction requirements, it is necessary to achieve optimal allocation of resources. The high-efficiency and large-capacity generating units generate more power to reduce energy consumption and reduce pollution, but since China currently implements a power-generation quota plan, it is still necessary to implement such an optimized and rational resource allocation, and the market-oriented adjustment measures aiming at system reform and energy-efficient energy saving are the goals. Implementation."
Taking energy-saving dispatch as an example, as early as August 2007, the State Council issued the Notice on Forwarding the Development and Reform Commission and Other Departments' Energy-Saving Power Generation Dispatch Measures (Trial), and decided to improve power generation dispatching methods and implement energy-saving power generation dispatching. However, until today, this policy still cannot be fully promoted and can only be piloted in some regions.
It is understood that in the pilot work of the China Southern Power Grid's energy-saving dispatching system, since the implementation of energy-saving power generation dispatches canceled the power generation capacity plan, all the units were dispatched according to the size of the energy consumption, and the power generation amount was calculated according to the country's approval of the on-grid tariff, and its implementation also led to closure. The thermal power generation unit's power generation index trade compensation policy cannot be implemented, and the power plant is reluctant to participate in a series of issues such as the transmission of electricity and the increase in the cost of power purchases by power grid companies.
At the same time, due to imperfect related market mechanisms, other problems have also arisen in the energy conservation work that has been carried out. According to reports, the direct electricity purchase policy encouraged in the notice has caused a certain impact on the sequencing of thermal power plants in accordance with the principles of energy conservation and emission reduction, which has reduced the effect of energy conservation and emission reduction; when the alternative electricity generation policy is implemented, electricity prices cannot be implemented. The formation of market pricing has led to a serious inversion of coal prices, and companies have lost their motor, resulting in the failure of alternative power generation. The emergence of these problems was considered by experts in the industry as "the stagnation of market-oriented reforms."
“The electricity market should be allocated resources by the market, but at present, the relationship between supply and demand of electricity is firmly covered by the approval system. This kind of means with a serious planned economy is actually the reason why energy-saving generation dispatching and other work cannot be promoted.†The authoritative person of electric reform told this reporter.
“At present, the energy conservation and emission reduction policies have impelled resistance. Since large power plants must be full-fired and renewable energy sources must be connected to the Internet in full, in this case, the interests of some enterprises will suffer losses. Therefore, we must mobilize the polarities of all parties and let all Enterprises are fully supporting energy-saving emission reduction policies, and I think ultimately depends on economic leverage.†Zhang Jianhua concluded that “especially the electricity price and electricity distribution plan mechanism need to actively reform. Also consider a variety of complementary resources, 'water Economics, West-to-East power transmission, wind power and thermal power bundling and transportation are used to promote energy conservation and emission reduction."
On April 15, the National Development and Reform Commission issued a notice on the adjustment of power operation in 2011. Actively promoting energy-saving and emission reduction in power generation is an important part of the notification. The notice requires that the power generation industry, as a key area of ​​energy conservation and emission reduction, must continue to take effective measures to fully tap the potential for savings and strive to reduce coal consumption and pollutant emissions.
“The National Development and Reform Commission has taken energy saving and emission reduction in the field of power generation from three aspects: energy-saving generation scheduling, differential power planning, and alternative power generation. This is very much in place.†Zhang Jianhua, director of the Transmission and Distribution Systems Research Institute of North China Electric Power University, told reporters, “But The introduction of the notification does not mean that the energy saving and emission reduction work in the power generation field will be fully implemented, and it will also have some problems in the specific implementation process."
The energy-saving work of power generation enterprises has started. Zhang Jianhua told this reporter that the current work on energy-saving power generation dispatch, differential power planning, and alternative power generation has started. "China has achieved certain achievements in energy-saving power generation dispatching. China Southern Power Grid pilot work has been advancing, the State Grid has also included energy-saving power generation scheduling into its strong smart grid planning." Zhang Jianhua said.
It is understood that through energy-saving power generation dispatching, China Southern Power Grid has saved 6.33 million tons of standard coal from 2008 to October 2010, which is equivalent to reducing carbon dioxide and sulfur dioxide emissions by 13.93 million tons and 120,000 tons, respectively. The contribution rate of energy-saving power generation dispatch to the reduction of coal consumption of GDP in the five southern provinces in 2009 was 5.6%.
State Grid divides energy-saving generation scheduling into three phases: From 2009 to 2011, the company will implement a day-to-day scheduling plan and safety check that meets the requirements of energy-saving generation dispatch and the electricity market, and carry out trials for energy-saving generation dispatch; 2012-2015, the company System dispatching agencies at or above the provincial level have built an intelligent dispatching technical support system, implemented dynamic management of the rotating spares of the grid-connected units, improved the controllability and economy of the unit operations, and promoted energy-saving power generation dispatch; 2016-2020, Completed the establishment of a corporate system province Above the level of integrated intelligent dispatching system, conventional unit rapid adjustment and deep peaking and other flexible operating techniques have been widely used to fully realize energy-saving generation scheduling.
"Compared with energy-saving generation scheduling and differential power planning, alternative power generation is more innovative and eye-catching. Although it has only been implemented since the second half of 2010, it has achieved remarkable results," said Zhang Jianhua.
It is understood that in September 2010, Jiangsu Power Grid took the lead in the implementation of "replacement power generation" in the country. The first time it took a total of 433.5 million kWh to replace and negotiate alternative electricity, it is expected to save about 22,000 tons of standard coal.
Zhang Jianhua told this reporter that the replacement of high-energy-consuming small units by high-efficiency units will not only save electricity consumption, reduce environmental pollution, but also bring profit to small-capacity power plants. "Alternative power generation is more reasonable than simply shutting down small units because it can reduce some social problems, such as the re-employment of workers in power plants," said Zhang Jianhua.
There are still certain problems in the implementation of “For the example of wind power that belongs to clean energy, starting from the perspective of energy conservation and emission reduction, according to relevant policies, it should be arranged in full amount of electricity on the grid. However, there are also intermittent and unstable problems in the integration of wind power. When grid-connected power generation, we must consider the use of conventional power and energy storage facilities for its peak load adjustment.†Zhang Jianhua told this reporter, “This involves not only technical issues, but also related to the national policy and the coordination of the entire power system management.â€
It is understood that in order to massively accept clean energy and grid-connected power generation, the grid is inevitably undergoing peak shaving. But for many grids, peaking means increased local energy consumption. Taking the North China Power Grid as an example, 94% of the power grid is a thermal power unit. Since the power generated by the peak-shaving unit is reduced and the efficiency is reduced, this will affect the enthusiasm of peak-shaving for thermal power plants that have already suffered heavy losses. “Conventional thermal power units for large-scale wind power peak regulation not only mean reduction in power generation output and profit reduction, but also due to the reduction of unit efficiency due to peaking demand, increase of coal consumption, and increase of pollutant emissions, then when the government’s energy efficiency assessment, Should be treated differently, using different assessment indicators, at the same time should consider the appropriate compensation measures." Zhang Jianhua said.
In energy conservation and emission reduction, it is not only these. In order to achieve energy-saving and emission reduction problems, "small thermal power" in the power supply should stop generating power or shut down. However, the power situation in China is complex, especially in the peak periods of summer and winter electricity, and the power gap is very large. Therefore, although the small units have the problem of high coal consumption and heavy pollution, they can still play the roles of peak load reduction and valley filling, so they are in power supply. In times of stress, small units may even subsidize power generation.
"From the perspective of energy conservation and emission reduction, small units should be shut down, but from the actual situation, small thermal power has its value." Zhang Jianhua said, "So how to balance these conflicts, including compensation mechanisms, assessment mechanisms, including many issues It is that we need further detailed consideration."
Electricity demand side management is an effective energy-saving and emission reduction measure, but it is still not mature enough. “If the demand-side management can effectively stabilize the power load curve, then it will not result in light-load and low-efficiency operation for most of the time to build a large number of power facilities to meet only a few tens of hours of power peaks in a year. "Zhang Jianhua said," Therefore, vigorously promoting power demand side management is of great significance for energy saving and emission reduction of electricity."
Market-oriented reform is the final direction of the implementation of energy-saving emission reduction measures, and ultimately will be adjusted in accordance with market laws and economic laws. Zhang Jianhua stressed that, "For example, when the electricity is low, according to energy-saving emission reduction requirements, it is necessary to achieve optimal allocation of resources. The high-efficiency and large-capacity generating units generate more power to reduce energy consumption and reduce pollution, but since China currently implements a power-generation quota plan, it is still necessary to implement such an optimized and rational resource allocation, and the market-oriented adjustment measures aiming at system reform and energy-efficient energy saving are the goals. Implementation."
Taking energy-saving dispatch as an example, as early as August 2007, the State Council issued the Notice on Forwarding the Development and Reform Commission and Other Departments' Energy-Saving Power Generation Dispatch Measures (Trial), and decided to improve power generation dispatching methods and implement energy-saving power generation dispatching. However, until today, this policy still cannot be fully promoted and can only be piloted in some regions.
It is understood that in the pilot work of the China Southern Power Grid's energy-saving dispatching system, since the implementation of energy-saving power generation dispatches canceled the power generation capacity plan, all the units were dispatched according to the size of the energy consumption, and the power generation amount was calculated according to the country's approval of the on-grid tariff, and its implementation also led to closure. The thermal power generation unit's power generation index trade compensation policy cannot be implemented, and the power plant is reluctant to participate in a series of issues such as the transmission of electricity and the increase in the cost of power purchases by power grid companies.
At the same time, due to imperfect related market mechanisms, other problems have also arisen in the energy conservation work that has been carried out. According to reports, the direct electricity purchase policy encouraged in the notice has caused a certain impact on the sequencing of thermal power plants in accordance with the principles of energy conservation and emission reduction, which has reduced the effect of energy conservation and emission reduction; when the alternative electricity generation policy is implemented, electricity prices cannot be implemented. The formation of market pricing has led to a serious inversion of coal prices, and companies have lost their motor, resulting in the failure of alternative power generation. The emergence of these problems was considered by experts in the industry as "the stagnation of market-oriented reforms."
“The electricity market should be allocated resources by the market, but at present, the relationship between supply and demand of electricity is firmly covered by the approval system. This kind of means with a serious planned economy is actually the reason why energy-saving generation dispatching and other work cannot be promoted.†The authoritative person of electric reform told this reporter.
“At present, the energy conservation and emission reduction policies have impelled resistance. Since large power plants must be full-fired and renewable energy sources must be connected to the Internet in full, in this case, the interests of some enterprises will suffer losses. Therefore, we must mobilize the polarities of all parties and let all Enterprises are fully supporting energy-saving emission reduction policies, and I think ultimately depends on economic leverage.†Zhang Jianhua concluded that “especially the electricity price and electricity distribution plan mechanism need to actively reform. Also consider a variety of complementary resources, 'water Economics, West-to-East power transmission, wind power and thermal power bundling and transportation are used to promote energy conservation and emission reduction."
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