What is green electricity?

We really live in an era of high energy consumption. Cars, color TVs, refrigerators, microwave ovens, etc. Everything we can think of that can use electricity and oil has become our daily necessities. However, with the realization of the "ideal", the demand for energy is increasing day by day, but the living environment has been destroyed as never before. ...

The concept of "green electricity" was born under this background. The so-called "green power" means using specific power generation equipment, such as fans and solar photovoltaic cells, to convert wind energy and solar energy into electric energy. This method does not produce or rarely produces emissions harmful to the environment during power generation, does not consume fossil fuels, and saves limited resource reserves. Compared with traditional thermal power generation, renewable energy power generation is more conducive to environmental protection and sustainable development, so people give it the reputation of green power.

Green power includes wind power generation, solar photovoltaic power generation, geothermal power generation, wave tidal power generation, small hydropower and so on. As an important part of sustainable energy, green electricity just provides us with an opportunity to choose green energy consumption.

Wind power has always been the fastest growing energy source in the world. By the beginning of 2003, the installed capacity of global wind power generation reached 32 million kilowatts, equivalent to 32 standard nuclear power plants. The development speed of wind power generation is a great surprise. In Europe, wind power generation has been able to meet the needs of 40 million people. In some Asian countries, wind power generation has also achieved rapid development in recent years. Wind power generation in China needs to be improved. At present, the main cost of wind power generation lies in the maintenance of power generation equipment. If the maintenance cost can be further reduced, wind power generation will play a greater potential.

It is a new trend to use waves to generate electricity in recent years. When the waves in the ocean hit the coast, they will stir up a lot of spray, which has great impact and contains a lot of energy. According to scientists' estimation, the energy generated on the sea surface of 1 square kilometer can reach as much as 200,000 kilowatts. From this calculation, the global wave energy reserves may reach 2.5 billion kilowatts. Now, coastal countries attach great importance to using this energy to generate electricity. China's wave power generation technology is at the advanced level in the world.

Solar power generation is to generate electricity through solar cells, which are semiconductor devices that directly convert light energy into electric energy. Solar power generation will not pollute the air and destroy the ecology. At the same time, it has the characteristics of rich sources and regular replenishment, and is a renewable clean and green energy. Solar power generation has long been attached great importance by countries all over the world, and its development and application have made great progress. China's solar power generation industry is also developing rapidly. At present, the main problem of solar cells is the low photoelectric conversion rate. If it can be greatly improved, many of our daily appliances can be powered by solar energy, such as digital cameras, mobile phones and notebook computers, which can all work in the sun.

Geothermal power generation is the most important way of geothermal utilization. The principle of geothermal power generation and thermal power generation is the same, which uses the thermal energy of steam to convert into mechanical energy in the steam turbine, and then drives the generator to generate electricity. The difference is that geothermal power generation does not need a huge boiler like thermal power generation, nor does it need to consume fuel. The energy it uses is geothermal energy. Energy experts believe that environmentally friendly geothermal power generation will have a strong development prospect in the future. Some experts even estimate that geothermal power generation will account for 10% of the world's total power generation in 20 years. China is rich in geothermal resources and has broad prospects for geothermal power generation.

Green power also includes biomass gasification power generation and small hydropower. With the change of modern lifestyle, choosing green life has become a fashion and a necessity. When green electricity and traditional electricity give you a choice, what kind of lifestyle will attract your attention more?