New energy generally refers to renewable energy 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 thermal cycle between the ocean surface and the deep layer. In addition, there are hydrogen energy, biogas, alcohol, methanol and so on. The widely used energy sources such as coal, oil, natural gas and water are called conventional energy sources. With the limitation of conventional energy and the increasingly prominent environmental problems, more and more countries pay attention to new energy sources with environmental protection and renewable characteristics.

Because the traditional fuel is decreasing day by day, it is gradually replaced by new energy. Therefore, the emergence and development of new energy is inevitable. In a word, new energy is very reliable and has a very good market prospect.