Various forms of new energy come directly or indirectly from thermal energy generated by the sun or the interior of the earth. Including energy produced from solar energy, wind energy, biomass energy, geothermal energy, nuclear fusion energy, hydropower and ocean energy, as well as biofuels and hydrogen derived from renewable energy sources. New energy can also be said to include various renewable energy and nuclear energy. Compared with traditional energy, new energy generally has the characteristics of lower pollution and large reserves, which is of great importance in solving the serious problems of environmental pollution and resource depletion (in particularly fossil fuels) in today's world. At the same time, given that many newhe sources of energy are distributed equally, this is also of great importance in resolving wars caused by energy.
According to the world's claims, resources such as oil and coal mines will decline at an accelerating rate. Nuclear power and solar power will soon become the main sources of energy.
The United Nations Development Program (UNDP) divides new energy into the following three categories: large and medium hydropower; new renewable energies, including small hydropower, solar energy, wind energy, modern biomass energy and geothermal energy. energy and ocean energy Energy (tidal energy);
Generally speaking, conventional energy refers to energy whose technology is relatively mature and has been used on a large scale, while new energy generally refers tot refers to energy that has not yet been used on a large scale and is in use. actively researched and developed. Therefore, coal, oil, natural gas and large and medium hydropower plants are considered conventional energy sources, while solar energy, wind energy, modern biomass energy, l geothermal energy, marine energy, nuclear energy, hydrogen energy, etc. are considered conventional energy sources. new sources of energy. With the advancement of technology and the establishment of the concept of sustainable development, industrial and domestic organic waste, which was once considered waste, has been recognized again as a material for the use of energy resources and has made the object of particular attention. extensive research and development. Therefore, the use of rWaste sources can also be considered a form of new energy technology.
Energy resources that have only recently been developed and used by humans and await further research and development are called new energy. Compared with conventional energy, new energy has different characteristics depending on historical periods and technological levels. In today's society, new energy generally refers to nuclear energy, solar energy, wind energy, geothermal energy, hydrogen, etc.