Water and wind energy are renewable energy sources.
Renewable Energy
1. Solar energy: Directly from solar radiation. The main purpose is to provide heat and electrical energy.
2. Bioenergy: Green plants convert solar energy into chemical energy through photosynthesis, which is stored in the body, can flow in one direction along the food chain, and is eventually converted into heat energy and lost. Biogas is obtained through combustion and anaerobic fermentation to obtain energy.
3. Wind energy: Energy is provided by solar radiation. Due to uneven cold and heat, air pressure differences occur, resulting in horizontal movement of air - the formation of wind. Energy is mainly obtained from wind turbines.
4. Water energy: Energy is provided by solar radiation, creating a water cycle. The warm and humid air from the ocean rises when heated, and the solar energy is converted into potential energy. When precipitation forms on the high mountains, the water flows downwards. Potential energy is converted into kinetic energy, which is water energy. Energy is obtained mainly from hydroelectric generators.
5. Ocean energy: The energy contained in seawater movements such as tides, waves, and ocean currents is also inexhaustible. Tidal energy mainly comes from the gravity of celestial bodies such as the moon and the sun, while the energy of waves and ocean currents is mainly affected by wind. It mainly generates electricity through the kinetic energy of tides.
6. Geothermal energy: comes from the decay of radioactive elements inside the earth. Can be used for geothermal power generation and heating.
7. Hydrogen energy: Obtain energy through combustion or fuel cells.
8. Nuclear energy: Obtain energy through nuclear power plants.
Extended information:
Characteristics of renewable energy:
Under the specific time and space conditions of nature at this stage, renewable natural resources can continue to regenerate, multiply and grow, maintain or expand their reserves, and rely on source sources for regeneration.
Once the source of the species disappears, the resource cannot be regenerated. This requires scientific and rational utilization and protection of the source of the species before regeneration is possible and "inexhaustible" is possible. Soil is a renewable resource because soil fertility can be continuously renewed through artificial measures and natural processes.
Renewable energy generally refers to a variety of inexhaustible energy sources. Strictly speaking, it is an energy source that will not be exhausted in human lifetimes. Renewable energy does not include currently limited energy sources such as fossil fuels and nuclear energy.
Most renewable energy is actually the storage of solar energy. Renewable does not mean providing energy for ten years, but for hundreds or even thousands of years.