Many people think that new energy has a history of one hundred years. According to its age and its self-predicted life cycle, it seems to be an "ancient" energy source. However, do you know the "era" of conventional energy?
Noun explanation: New energy _NE is defined as new energy. This is different from the definition of conventional energy, which refers to chemical fuels such as coal, oil and natural gas. To put it bluntly, energy generates heat energy through "combustion", which is used for lighting, cooking or converting it into mechanical energy.
These energy sources all started from the quasi-era of "slash and burn". Although there is no accurate definition in archaeology at present, it is generally believed that human beings began to use fire 6.5438+0 million years ago, which is the starting point of conventional energy. Conventional energy has a history of 6.5438+0 million years, while new energy has a history of only a few hundred years. Is "electric energy" much younger by comparison? The definition of "new person" should not be controversial.
However, the definition of new energy is not really based on "age". The essential difference is actually whether it can be manufactured artificially, which is "renewable" in professional terms! Conventional energy sources such as coal, oil and natural gas are non-renewable, and the popular description is to use less until it is used up. Among them, the energy storage of oil is less than 200 billion tons, and the average annual consumption of automobiles in the world has exceeded 5.7 billion tons. Let's calculate how many years oil can burn.
Second, the renewability of new energy.
Wind energy will not be exhausted.
The water will never dry up.
Photovoltaic _ will not disappear
Geothermal _ will not cool down.
Ocean energy has unlimited potential.
All this energy comes from the universe, and as long as the universe does not return to the singularity, it can be used forever. However, compared with the life of the universe, it is not an exaggeration to evaluate the cycle of civilization as a flash in the pan. Time has different concepts in different dimensions, and the long human civilization may be just a flick of a finger in a higher dimension, so there is still potential to effectively use these energy sources through technological upgrading, and these energy sources generally have one thing in common.
All this energy comes from the universe, and as long as the universe does not return to the singularity, it can be used forever. However, compared with the life of the universe, it is not an exaggeration to evaluate the cycle of civilization as a flash in the pan. Time has different concepts in different dimensions, and the long human civilization may be just a flick of a finger in a higher dimension, so there is still potential to effectively use these energy sources through technological upgrading, and these energy sources generally have one thing in common.
It seems that wind, water, light and heat can't be directly converted into "kinetic energy" of cars, because without efficient "wind engine" or "photovoltaic engine", water and geothermal energy can't be directly converted into power of cars. Therefore, it is necessary to convert this energy into a kind of energy that can be used by cars, and comprehensively analyze various engines-only motors can be used as an alternative option, then these natural energies will be converted into electric energy.
Wind, water and heat can be converted into electrical energy through mechanical energy, and photovoltaic power generation is no problem. Then, under the premise that these energy forms are called new energy, and the final form of new energy is electricity, why are electric vehicles not new energy vehicles?
Knowledge point: the power battery equipped with electric vehicles can be used step by step. The concept is that after the car is used as a power battery for about ten years, the eliminated batteries can be sorted and tested, and most of them can be sent to the field of new energy power generation to expand the energy storage power station. At present, the proportion of new energy power generation is only over 30%, and the reason for the slow promotion is that the construction cost of energy storage power stations is too high, that is, batteries are too expensive.
However, the cost can be greatly reduced by using the batteries eliminated by these cars, and the service life is still 30/50 years. The popularity of electric vehicles can promote the growth of new energy generation, so it seems appropriate to define such vehicles as new energy vehicles. Think about it. By the way: high-speed trains are all driven by motors, and submarines and many ships are also driven by motors, which is very powerful.