This is how electricity is generated. If you spin a wire around to form a coil and move a magnet near the coil, more electricity will be generated. The more times the wire is coiled, the more electricity is generated, and the stronger the magnet, the stronger the electricity, and the faster the magnet is moved, the stronger the electricity. The electricity we use is generated using these principles.
To put it simply, the mechanism of electricity generation is similar to that of motors used in models and toys. When a battery is connected to a motor, the motor turns. In the opposite direction, if you connect a miniature light bulb to the motor cord and turn the motor shaft quickly, the bulb will light up. In other words, electricity is created.
Electricity sent to the home is produced by a large generator at a power plant. This generator is very large, but its mechanism is similar to that of a motor used in a toy.
It takes a lot of power to turn the large coils of the generator in a power plant. In a hydroelectric power plant, the power of water falling from a high place is used to turn a water wheel to drive the generator. In thermal and nuclear power plants, steam is generated by burning heavy oil or by the heat generated from nuclear fuel, and this steam power is used to drive the generators.

Other types of power generation include geothermal power, which uses geothermal energy as steam; tidal power, which uses the difference between the ebb and flow of tides; wind power, which uses wind; and solar power, which uses solar energy.