Generally speaking, conventional energy is technically more mature and has been large-scale use of energy, and new energy is not usually large-scale use of energy is being actively developed.
Therefore, coal, oil, gas and hydropower are considered medium-sized conventional energy, and the solar energy, wind energy, modern biomass, geothermal, ocean energy and nuclear energy, hydrogen energy, etc., as new energy sources.
With advances in technology and establish the concept of sustainable development, in the past has been regarded as industrial and domestic waste is organic waste re-understanding, as an energy resource by using the material and depth of research and development and utilization, therefore, Utilization of waste can also be seen as a form of new energy technologies.
Recently was only human development and utilization of the energy needs further research and development of new energy resources as compared to conventional energy is concerned, in different historical periods and level of technology, new energy sources have different content. Today's society, new energy usually refers to nuclear, solar, wind, geothermal, hydrogen and so on.
By category can be divided into: solar wind biomass ethanol, bio-diesel fuel hydrogen fuel cell vehicles of new energy power generation building energy waste geothermal tidal energy dimethyl ether and other flammable ice.
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