Recently, a banner entitled "Germany's 100% coverage of renewable energy for the first time" in the energy circle brush screen. The main content is: "May 15, 2016, a milestone event in the history of human energy use: for the first time in Germany, the country's electricity demand is almost entirely supplied by renewable energy sources." It is understood that the reason why the demand for electricity in Germany is short Realized by the time all the supply of renewable energy sources, from Germany has a very strong power export capacity, even if solar, wind power peaked, conventional energy can still supply 7.7 million kilowatts of electricity.
Some analysts believe that although there has been a milestone event in energy history in Germany, but in the short term can not be achieved renewable energy coverage of 100% of the electricity needs at any time. In the long run, there is a need to continue to explore the internal grid or energy storage technology in power systems to solve the oversupply of power systems.
China Power Daily reporter interviewed on relevant issues, the CPPCC National Committee member, former China Power Investment Corporation Lu Qizhou said: "100% coverage of renewable energy is the trend of the times! If you do not consider the economy, there are no technical problems. Solar energy, energy storage and superconductivity will become the three ultimate technologies in the power industry. "
Reporter: Today, when solar energy, wind energy and hydropower energy are rapidly developing, you talk about that solar energy will become one of the ultimate technologies of the power industry in the future, rather than other energy sources or multiple energy supplements. why? What is the basis?
Lu Qizhou: At present, all the energy (except nuclear and geothermal energy) comes from the direct or indirect utilization and conversion of solar energy. Wind energy and water are directly related to solar energy. Wind energy is formed by the temperature difference between latitude, longitude and altitude. Water is the result of sun's evaporation of water to form rain and snow, which is formed by the difference in surface height. Coal, petroleum, natural gas, etc. Fossil fuels are formed from ancient buried animals and plants after long geological ages, essentially solar energy fixed by ancient creatures; various plants convert solar energy into chemical energy and store it in the body through photosynthesis. In theory, as long as indirect conversion must reduce thermal efficiency. However, the solar power generation technology is directly utilized and converted. Of course, compared with other energy technologies, the solar power generation technology is still in its infancy. As the technology advances, especially the continuous improvement of materials technology, the efficiency of direct solar power generation and utilization will increase High, and the cost will inevitably decline gradually, which eventually become a low-cost energy. At the same time, solar energy resources are infinite relative to other energy sources.
Reporter: Energy storage technology will play a big role in the development of electric power and the development of new energy sources. However, due to the economic reasons of energy storage technologies, at present, in addition to more mature pumped storage, other energy storage technologies have not yet achieved large Scale application. Do you think that storage will be one of the ultimate technologies in the future power industry, based on the broad needs of the application end or the ever-changing technological revolution? why?
Lu Qizhou: On energy storage, in addition to electricity, any energy is not only technically but economically storable. The inalienability of electrical energy is currently only reflected in the economy, and from an economic point of view, the profitable part of energy storage technology (electricity only) lies here. As a result, the commercialization of energy storage technologies (electricity) has been a matter of money and time, with almost crazy efforts by many profit-makers.
Once energy storage technologies have reached commercial levels and combined with technologies such as solar and smart grid, most of today's power technologies will come to an end.
Reporter: At present, UHV, EHV and general high and low voltage power transmission, power loss are relatively large, the use of superconducting material zero resistance characteristics, can minimize power loss. However, due to temperature issues, superconducting materials have not yet come into practical use. Scientific and technological future, or to achieve the application of superconducting materials at room temperature. Superconductivity, will become the ultimate technology in the power industry no doubt. Do you think the future of the application of superconductors, will all replace the current grid materials? why?
Lu Qizhou: superconducting research too much, so far, as you said is the technical economy at room temperature, not to mention with the realization of quantum power transmission (not groundless), no loss or even without transmission lines Power transmission will completely subvert the concept of the existing power system.
This is just one of my words, take time to verify.
Therefore, the younger generation of electricians are fortunate because, at least, some of these technologies can be realized.
Reporter: If the solar, energy storage, superconducting three ultimate technology become a reality, please look forward to the shape of the future power grid or development prospects.
Lu Qizhou: 100% coverage of renewable energy is the trend of the times! For the moment, any of the obstacles mentioned are limited to the economic level, without any technical problems, regardless of economy. Power people must have forward-looking ideas and vision, if not looking forward to meet the status quo, will be replaced by other "laymen!" In the future, superconductors may be made as diodes, transistors, and superconducting quantum interferometers as semiconductors, used in fields such as weak magnetic field measurement and superconducting computers. Once these applications are in place, the world will change its appearance. Superconducting energy storage collects solar energy and stores it, delivering it to millions of households intact through powerful power grids.
Some analysts believe that although there has been a milestone event in energy history in Germany, but in the short term can not be achieved renewable energy coverage of 100% of the electricity needs at any time. In the long run, there is a need to continue to explore the internal grid or energy storage technology in power systems to solve the oversupply of power systems.
China Power Daily reporter interviewed on relevant issues, the CPPCC National Committee member, former China Power Investment Corporation Lu Qizhou said: "100% coverage of renewable energy is the trend of the times! If you do not consider the economy, there are no technical problems. Solar energy, energy storage and superconductivity will become the three ultimate technologies in the power industry. "
Reporter: Today, when solar energy, wind energy and hydropower energy are rapidly developing, you talk about that solar energy will become one of the ultimate technologies of the power industry in the future, rather than other energy sources or multiple energy supplements. why? What is the basis?
Lu Qizhou: At present, all the energy (except nuclear and geothermal energy) comes from the direct or indirect utilization and conversion of solar energy. Wind energy and water are directly related to solar energy. Wind energy is formed by the temperature difference between latitude, longitude and altitude. Water is the result of sun's evaporation of water to form rain and snow, which is formed by the difference in surface height. Coal, petroleum, natural gas, etc. Fossil fuels are formed from ancient buried animals and plants after long geological ages, essentially solar energy fixed by ancient creatures; various plants convert solar energy into chemical energy and store it in the body through photosynthesis. In theory, as long as indirect conversion must reduce thermal efficiency. However, the solar power generation technology is directly utilized and converted. Of course, compared with other energy technologies, the solar power generation technology is still in its infancy. As the technology advances, especially the continuous improvement of materials technology, the efficiency of direct solar power generation and utilization will increase High, and the cost will inevitably decline gradually, which eventually become a low-cost energy. At the same time, solar energy resources are infinite relative to other energy sources.
Reporter: Energy storage technology will play a big role in the development of electric power and the development of new energy sources. However, due to the economic reasons of energy storage technologies, at present, in addition to more mature pumped storage, other energy storage technologies have not yet achieved large Scale application. Do you think that storage will be one of the ultimate technologies in the future power industry, based on the broad needs of the application end or the ever-changing technological revolution? why?
Lu Qizhou: On energy storage, in addition to electricity, any energy is not only technically but economically storable. The inalienability of electrical energy is currently only reflected in the economy, and from an economic point of view, the profitable part of energy storage technology (electricity only) lies here. As a result, the commercialization of energy storage technologies (electricity) has been a matter of money and time, with almost crazy efforts by many profit-makers.
Once energy storage technologies have reached commercial levels and combined with technologies such as solar and smart grid, most of today's power technologies will come to an end.
Reporter: At present, UHV, EHV and general high and low voltage power transmission, power loss are relatively large, the use of superconducting material zero resistance characteristics, can minimize power loss. However, due to temperature issues, superconducting materials have not yet come into practical use. Scientific and technological future, or to achieve the application of superconducting materials at room temperature. Superconductivity, will become the ultimate technology in the power industry no doubt. Do you think the future of the application of superconductors, will all replace the current grid materials? why?
Lu Qizhou: superconducting research too much, so far, as you said is the technical economy at room temperature, not to mention with the realization of quantum power transmission (not groundless), no loss or even without transmission lines Power transmission will completely subvert the concept of the existing power system.
This is just one of my words, take time to verify.
Therefore, the younger generation of electricians are fortunate because, at least, some of these technologies can be realized.
Reporter: If the solar, energy storage, superconducting three ultimate technology become a reality, please look forward to the shape of the future power grid or development prospects.
Lu Qizhou: 100% coverage of renewable energy is the trend of the times! For the moment, any of the obstacles mentioned are limited to the economic level, without any technical problems, regardless of economy. Power people must have forward-looking ideas and vision, if not looking forward to meet the status quo, will be replaced by other "laymen!" In the future, superconductors may be made as diodes, transistors, and superconducting quantum interferometers as semiconductors, used in fields such as weak magnetic field measurement and superconducting computers. Once these applications are in place, the world will change its appearance. Superconducting energy storage collects solar energy and stores it, delivering it to millions of households intact through powerful power grids.
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