how electricity is transmitted to your home
Water has a potential energy, as water falls down the penstock, the potential energy is converted into kinetic energy, which is used to rotate the blade in turbine. When the turbine starts to work, the kinetic energy becomes mechanical energy as the blades are rotating, and also activates the generator, thus the mechanical energy finally is converted into electrical energy.
The electric energy pass grid high voltage transmission line to terminal station, some for electric energy pass subtransmission lines. These energy can be sold transmission voltage to users of large amounts who own and operate their own substation. The other part of electric energy are through distribution substation to our home.
how this transmission process work
The hydroelectricity dam mad water fall down, and the potential energy change to kinetic energy.
When the turbine starts work, the kinetic energy becomes mechanical energy as the blades are rotating, and also activates the generator, thus the mechanical energy finally is converted into electrical energy.
Generators usually produced electricity with a low voltage, the low generator voltage is increased to a higher transmission voltage by a step-up transformer. When the electric energy arrive the terminal station, it would divide in two ways, one way is to customers, another way is to commercial, and small and medium industrial customers.