Electricity
Electricity is an energy source that uses electrical energy as power. Invented in the 1870s, the invention and application of electricity set off the second climax of industrialization. It has become one of the three scientific and technological revolutions that have occurred in the world since the 18th century in human history. Since then, technology has changed people's lives. Even in today's Internet age, we still have a growing demand for electricity, because we have invented more products that use electricity, such as computers and home appliances. It is undeniable that the continuous emergence of new technologies has made electricity a necessity for people. The large-scale power system that appeared in the 20th century is one of the most important achievements in the history of human engineering science. It is an electric power production and consumption system composed of power generation, transmission, transformation, distribution and consumption.