The United Nations Development Programme (UNDP) classifies new energy sources into the following three categories: large and medium-sized hydropower; New renewable energy sources, including small hydropower, solar energy, wind energy, modern biomass, geothermal energy and ocean energy (tidal energy); Traditional biomass.
Solar wind power generation, biomass energy, biodiesel, ethanol, new energy, automobile fuel cells, hydrogen energy, garbage power generation, energy-saving buildings, geothermal energy, tidal energy, dimethyl ether, combustible ice, etc.
Question 2: What are the new energy sources? Compared with conventional energy sources, new energy sources include nuclear energy, solar energy, wind energy, biomass energy, hydrogen energy, geothermal energy and tidal energy. The new energy is also relatively clean, and it is almost inexhaustible except for nuclear fission fuel. Because conventional energy sources such as coal, oil and gas have the disadvantages of polluting the environment and being non-renewable, people pay more and more attention to the development and utilization of new energy sources.
Question 3: What energy sources does the new fuel include? New energy is also called unconventional energy. Refers to various forms of energy other than traditional energy. Refers to the energy that has just been developed or actively studied and needs to be popularized, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy, nuclear fusion energy and so on. 1. New energy sources are classified according to their formation and sources: (1). Energy from solar radiation, such as solar energy, hydropower, wind energy and bioenergy. (2) Energy from the interior of the earth, such as nuclear energy and geothermal energy. (3) gravitational energy of celestial bodies, such as tidal energy. 2. New energy sources are classified according to the development and utilization status: (1), and conventional energy sources, such as hydropower and nuclear energy. (2) New energy sources, such as bioenergy, geothermal energy, ocean energy, solar energy and wind energy. 3. New energy sources are classified by attributes: (1), renewable energy sources, such as solar energy, geothermal energy, hydropower, wind energy, bioenergy and ocean energy. (2) Non-renewable energy, such as nuclear energy. 4. New energy is divided into (1), primary energy and energy directly from nature according to the transformation and transfer process. Such as hydropower, wind energy, nuclear energy, ocean energy and biomass energy. (2) Secondary energy sources, such as biogas, steam, thermal power, hydropower, nuclear power, solar energy, tidal energy and wave energy.
Question 4: What energy sources does the new energy include? All forms of new energy come directly or indirectly from the heat generated by the sun or the earth. Including solar energy, wind energy, biomass energy, geothermal energy, nuclear fusion energy, water energy and ocean energy, as well as energy generated by biofuels and hydrogen from renewable energy. It can also be said that new energy includes all kinds of renewable energy and nuclear energy. Compared with traditional energy sources, new energy sources generally have the characteristics of less pollution and large reserves, which is of great significance to solve the serious environmental pollution problem and the depletion of resources (especially fossil energy) in the world today. At the same time, because many new energy sources are evenly distributed, it is also of great significance to solve the war caused by energy.
According to the world's assertion, resources such as oil and coal mines will be reduced at an accelerated rate. Nuclear energy and solar energy will soon become the main energy sources.
The United Nations Development Programme (UNDP) classifies new energy sources into the following three categories: large and medium-sized hydropower; New renewable energy, including small hydropower, solar energy, wind energy, modern biomass energy, geothermal energy and ocean energy (tidal energy); Infiltrate biomass energy.
Generally speaking, conventional energy refers to energy that is technically mature and has been used on a large scale, while new energy usually refers to energy that has not been used on a large scale and is being actively developed. Therefore, coal, oil, natural gas and large and medium-sized hydropower are regarded as conventional energy sources, while solar energy, wind energy, modern biomass energy, geothermal energy, ocean energy, nuclear energy and hydrogen energy are regarded as new energy sources. With the progress of technology and the establishment of the concept of sustainable development, the industrial and domestic organic wastes that used to be regarded as garbage have been re-recognized, and have been deeply studied, developed and utilized as a material for the utilization of energy resources. Therefore, the resource utilization of waste can also be regarded as a form of new energy technology.
The energy resources that mankind has just developed and utilized and need further research and development are called new energy sources. Compared with conventional energy, new energy has different contents in different historical periods and scientific and technological levels. In today's society, new energy usually refers to nuclear energy, solar energy, wind energy, geothermal energy, hydrogen energy and so on.
Question 5: What are the new energy industries? 1. New energy sources are classified according to their formation and sources:
(1), energy from solar radiation, such as solar energy, hydro energy, wind energy, bioenergy, etc.
(2) Energy from the interior of the earth, such as nuclear energy and geothermal energy.
(3) gravitational energy of celestial bodies, such as tidal energy.
2, new energy according to the development and utilization of classification:
(1), conventional energy, such as hydropower and nuclear energy.
(2) New energy sources, such as bioenergy, geothermal energy, ocean energy, solar energy and wind energy.
3. New energy is classified by attributes:
(1), renewable energy, such as solar energy, geothermal energy, hydropower, wind energy, biomass energy and ocean energy.
(2) Non-renewable energy, such as nuclear energy.
4, new energy according to the transformation and transfer process classification:
(1), primary energy, energy directly from nature. Such as hydropower, wind energy, nuclear energy, ocean energy and biomass energy.
(2) Secondary energy sources, such as biogas, steam, thermal power, hydropower, nuclear power, solar energy, tidal energy and wave energy.
source
Solar energy/solar energy
Solar energy can be divided into broad sense and narrow sense: narrow sense solar energy refers to modern solar radiation that can be directly utilized by modern technology; Solar energy in a broad sense includes not only solar energy in a narrow sense, but also indirect solar energy, such as atmospheric flow caused by solar radiation-wind energy, coal formed by ancient plants and so on.
wind energy
Wind energy (wind energy) The kinetic energy generated by the massive air flow on the earth's surface. Because of the different temperature changes, the water vapor content in the air is different after being irradiated by the sun, and the air pressure in different places is different. High-pressure air flows to the low-pressure area in the horizontal direction, forming wind.
water-power
In a broad sense, hydropower resources include river energy, tidal energy, wave energy, ocean current energy and other energy resources;
In a narrow sense, hydropower resources refer to the hydropower resources of rivers. This is conventional energy, primary energy.
biomass energy
Biomass energy is an energy form in which solar energy is stored in biomass in the form of chemical energy, that is, energy with biomass as the carrier. Biomass suitable for energy utilization can be divided into five categories: forestry resources, agricultural resources, domestic sewage and industrial organic wastewater, municipal solid waste and livestock manure.
nuclear power
Nuclear energy (or atomic energy) is the energy released by the nucleus by transforming its mass.
Geothermal energy
Geothermal energy is natural thermal energy extracted from the earth's crust. This energy comes from the lava inside the earth and exists in the form of heat. This energy is the energy that causes volcanic eruptions and earthquakes.
Question 6: What new energy sources are there on the earth at present? Solar energy generally refers to the radiant energy of sunlight. The main utilization forms of solar energy are photothermal conversion, photoelectric conversion and photochemical conversion. Br> In a broad sense, solar energy is the source of a lot of energy on the earth, such as wind energy, chemical energy, water potential energy and other forms of energy caused or transformed by solar energy. The methods of using solar energy mainly include: solar pool, which converts the energy contained in sunlight into electric energy through photoelectric conversion; Solar water heaters use the heat of sunlight to heat water and use hot water to generate electricity. Solar energy can be divided into two types: 1. Solar photovoltaic panel module is a kind of power generation device that generates direct current under sunlight, and it is composed of thin solid photovoltaic cells made almost entirely of semiconductor materials (such as silicon). Because there are no moving parts, it can run for a long time without any loss. Simple photovoltaic cells can provide energy for watches and computers, while more complex photovoltaic systems can illuminate houses and supply power to the power grid. Photovoltaic panel modules can be made into different shapes, and the modules can generate more electricity when connected. In recent years, photovoltaic panels have been used on roofs and building surfaces, and even as a part of windows, skylights or shielding devices. These photovoltaic facilities are usually called photovoltaic systems attached to buildings. 2. Solar Thermal Energy Modern solar thermal energy technology gathers sunlight and uses its energy to generate hot water, steam and electricity. In addition to using appropriate technology to collect solar energy, buildings can also use the light and heat of the sun by adding appropriate equipment in the design, such as giant south-facing windows or building materials that can absorb and slowly release solar heat. Nuclear energy nuclear energy is the energy released by the nucleus by transforming its mass, which conforms to Albert? Einstein equation e = MC 2; Where E= energy, m= mass and c= constant of light speed. There are three main forms of nuclear energy release: A. Nuclear fission energy The so-called nuclear fission energy is the energy released by fission of some heavy nuclei (such as uranium -235, uranium -238, plutonium -239, etc.). B. Nuclear fusion can combine two or more hydrogen nuclei (such as hydrogen isotopes-deuterium and tritium) into a heavier nucleus, and the reaction in which mass defects release huge energy at the same time is called nuclear fusion reaction. C. nuclear decay nuclear decay is a natural and much slower form of fission, with slow energy release and difficult use. The main problems existing in the utilization of nuclear energy are: (1) low resource utilization rate; (2) The nuclear waste produced after the reaction has become a potential factor endangering the biosphere, and its final treatment technology has not been completely solved; (3) Reactor ... >>
Question 7: What are the new energy stocks? Tianwei (600550) forms the whole industrial layout of solar energy raw materials and battery components.
The major shareholder of Little Swan (0004 18) shares in Wuxi Suntech Solar.
Minjiang Hydropower (600 13 1) shares * * * Huaguan Technology set foot in the solar energy industry.
Donghai Silica Micro Powder Company, which is controlled by Yi Sheng Science and Technology (600 183), is the largest silica micro powder manufacturer in China.
Ningbo Vico Energy Company was established by Vico Essence (600 152), specializing in the production of various power supplies and solar cells.
Aetna Technology (000969) cooperates with Germany Odson Company in the thin film solar cell industry.
Great Wall Electrician (600 192) invested in Great Wall Lvyang Solar Energy Company to set foot in the solar energy field.
Leshan Electric Power (600644) shares in Sichuan Guangxin Silicon Industry, and the owner wants to produce polycrystalline silicon solar wafers.
East China Science and Technology (000727) is the largest manufacturer of solar vacuum collector tubes in China.
The major shareholder of chunlan shares (600854) plans to invest 3 billion yuan to develop new energy.
Xinao Group, the actual controlling shareholder of Weiyuan Biochemical (600803), is engaged in the production of new energy products such as solar energy.
The raw material supplier of Linuo Sun (600885) solar water heater * * Pharmaceutical 8.1811%(600211) is * * Keguang Solar Engineering Technology Company.
Xinhuaguang (600 184) Solar Special Optical Glass Substrate
Xinjiang New Energy, controlled by TBEA (600089), is engaged in the manufacture of solar photovoltaic modules.
The production capacity of Shanghai solar technology battery module controlled by Aerospace Electromechanical (600 15 1) has increased rapidly.
CSG A (000012)10 In June 2005, it is planned to build a solar photovoltaic cell production line with an annual output of 30 MW in the first phase of 200 million yuan.
Jiaotong University Sun, which is controlled by Jiaotong University Nanyang (60066 1), is engaged in the production of solar cell modules.
Shanshan shares (600884) Eureka Solar, mastering the core technology of monocrystalline silicon solar silicon wafer.
Shenzhen Wangfujing, a wholly-owned subsidiary of Wangfujing (600859), joined forces with Beijing Solar Research Institute, the largest professional research and development institution of solar energy in China, to establish Beijing Pu Sang Photoelectric Technology Company.
Feng Fan (600482) invested heavily in solar ponds, lithium batteries and solar cells.
(2) Wind energy
Jinshan shares (600396) wind power generation, wind power generation equipment installation and technical services.
The controlling shareholder of Xiangdian Co., Ltd. (6004 16) signed an agreement with German Lai Ci Blower Co., Ltd. to jointly produce centrifugal fans. At present, wind power assets are mainly in the controlling shareholder.
Guangdong Electric Power (000539)
(3) Wind power generation
TBEA (600089) and Shenyang University of Technology set up TBEA Shenyang Compensation Wind Energy Co., Ltd.
Jingneng Thermal Power (600578) is the second largest shareholder of Guohua Energy and indirectly participates in wind energy construction.
Dongfang Electric Machinery (600875)
(4) Manufacture of wind power generation equipment
The major shareholder of nuclear energy nuclear technology (000777) is China National Nuclear Corporation.
Zhongcheng Co., Ltd. (000 15 1) and Tsinghua University * * * research and develop nuclear energy, with high technology content.
G Shenneng (600642) invested 336,065,438+00,000 yuan to acquire 65,438+02% equity of Qinshan Associated Company and 65,438+005, and 590 yuan acquired 65,438+00% equity of Qinshan No.3 Nuclear Power Company.
(5) Geothermal energy
Jingneng Thermal Power (600578) is the main power supply unit in Beijing, with geothermal power generation, wind power generation and other themes.
(6) Ethanol gasoline
Fengyuan Biochemical (000930) is the only fuel ethanol supplier in Anhui Province.
China Resources Group, the controlling shareholder of China Resources Biochemical (600893), holds two designated enterprises, Jilin Fuel Ethanol and Heilongjiang China Resources Ethanol.
Guangdong Ganhua (000576) uses renewable sugar resources such as sugarcane and corn to produce fuel essence, which has become a substitute for gasoline.
Huazi Industry (600 19 1) uses renewable sugar resources to produce fuel essence, which is replaced by pure automobile gasoline.
Ronghua Industry (6003 1 1) lysine (soybean meal substitute) is one of the enterprises with the largest new production capacity.
Huaguan Technology (60037 1) is the first in China to own the ownership or right to use a number of the latest corn deep processing technologies (7) Hydrogen energy.
Tongji Science and Technology (600846) Co., Ltd., Shanghai Institute of Organic Chemistry of Chinese Academy of Sciences and Shanghai Li Shen Science and Technology jointly established Zhongke Tongli Chemical Materials Co., Ltd. to develop fuel cell electric vehicles.
Production of Zhongju Senlai, a subsidiary of Zhongju High-tech (600872) >>
Question 8: What are the types of new energy generation compared with the widely used conventional energy sources (such as coal, oil, natural gas, hydropower, etc.)? )? New energy refers to unconventional energy resources developed and utilized on the basis of new technologies, including wind energy, solar energy, ocean energy, geothermal energy, biomass energy, hydrogen energy, nuclear fusion energy and natural gas hydrate energy. New energy power generation refers to the process of converting new energy into electric energy. Wind power generation and solar power generation, as new energy generation modes with mature technology, large-scale development and commercial application, are at the forefront of new energy, and their main characteristics are: renewable, widely distributed and less pollution; Low energy density and small single machine capacity; Intermittence, periodicity, randomness and volatility; A large number of power electronics technologies are adopted; There are two typical ways to access the power grid: decentralized development and centralized development. Explanation of terms: renewable energy: energy that can be continuously regenerated in nature and regularly replenished or reused. Such as solar energy, wind energy, hydro energy, biomass energy, tidal energy and other non-fossil energy sources. Clean energy: renewable energy that produces little or no pollutants after consumption, low-pollution fossil energy (such as natural gas), and fossil energy that has been treated by clean energy technology (such as clean coal and clean oil). Information source: Smart Grid Knowledge Q&A
Question 9: What new energy sources are being developed, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy? New energy (NE): also known as unconventional energy. Generally speaking, it refers to the renewable energy resources developed and utilized on the basis of new technologies, including solar energy, biomass energy, wind energy, geothermal energy, wave energy, ocean current energy, tidal energy and so on.
Question 10: What new energy are we using now? Compared with conventional energy sources (such as coal, oil, natural gas, water energy, etc.). ) Energy that has been widely used for a long time and has mature technology and is systematically developed and utilized on the basis of new technologies, that is, energy newly developed and utilized by human beings, including solar energy, tidal energy, wave energy, ocean current energy, wind energy, geothermal energy, biological energy, hydrogen energy and geothermal energy. Scientists believe that in 2 1 century, wave energy, combustible ice, coal-formed gas, microorganisms and green algae will become new energy sources widely used by human beings. Wave energy: namely ocean wave energy. This is an inexhaustible pollution-free renewable energy. According to scientists' speculation, the ocean waves on the earth contain as much as 90 trillion kilowatts of electric energy. Combustible ice: this is a solid compound that combines with water, and its appearance is similar to that of ice, so it is called "combustible ice". According to scientists' calculations, the reserves of combustible ice are more than the sum of coal, oil and natural gas on the earth. Coal to gas: In the process of coal formation, due to the increase of temperature and pressure, metamorphism occurs, and combustible gas is also released. Scientists estimate that the coal-formed gas on the earth can reach 2000 trillion cubic meters. Microbes: Many countries in the world are rich in sugarcane, beet and cassava. Scientists can make it into alcohol by microbial fermentation, and the "ethanol gasoline" made by diluting gasoline with it can improve the drug effect by about 15%, and the raw materials for making alcohol are rich and the cost is low. Scientists have also successfully studied the use of microorganisms to produce hydrogen, opening up a new way of energy. Green algae: When oil and natural gas are exhausted, hydrogen may be an ideal fuel. The problem is to find a cheap way to produce hydrogen fuel. Scientists say that the answer to this question may be a common pond green algae. At present, one liter of green algae culture solution can produce 3 ml of hydrogen per hour. Researchers believe that the hydrogen production efficiency of green algae can be improved by at least 100 times, which requires further improvement of technology.