Renewable energy includes solar energy, hydropower, wind energy, biomass energy, wave energy, tidal energy, energy of ocean temperature difference, geothermal energy, etc.
Energy can be divided into two types: renewable energy and non-renewable energy. Renewable energy includes solar energy, hydropower, wind energy, biomass energy, wave energy, tidal energy, ocean temperature difference energy, geothermal energy, etc. They can be recycled in nature. It is an inexhaustible source of energy that will automatically regenerate without human intervention. It is a kind of energy source compared to non-renewable energy sources which can be exhausted.
Before the development of coal in the mid-19th century, all energy used was renewable. Besides energyie nuclear, tidal energy and geothermal energy, the basic energy of human activities comes mainly from solar light. Fossil fuels such as bioenergy and coal, oil and natural gas primarily absorb and store solar energy through plant photosynthesis. Others, like wind, water, ocean currents, etc., are also the result of the Earth's air and water being heated by sunlight.
The main reasons why humans use renewable energy
1. Advances in science and technology are making this type of energy more “easy to use.”
2. Fossil energy is limited. Not only will its price increase day by day, but it will eventually run out.
3. Some renewable energy sources (such as wind power, hydropower, solar power) do not emit greenhouse gasesgreenhouse gases (such as carbon dioxide) and therefore do not increase the risk of the greenhouse effect.
4. In order to improve the security of energy supply, reduce dependence on imported fossil fuels and meet the demand for sustainable energy.
The above content refers to Baidu-Renewable Energy Encyclopedia