Law of physics states, that energy can be neither created nor destroyed and it can only be converted, from one form to another form. Right now, a majority of the energy we use in our daily life is generated from fossil fuel only. For example, the electricity we obtain from the grid is produced with the help of fossil fuel called coal. There is a huge amount of coal that is used by the electricity grids to produce electricity. During the process of generating electricity from coal, there is also a higher amount of combustion gas that is released into the atmosphere.
The fuels like petrol, diesel, and gasoline are some of the fossil fuels that are used as energy sources for automobiles and machinery. The kind of energy, which have been mentioned so far are referred are non-renewable energy as they are not finite and may go depleted or exhausted in future. The non-renewable energy is very expensive because there is a huge amount of labour involved in processing this energy for practical use. For example, a lot of machines and labourers are involved in extracting the fossil fuels and other non-renewable energy.
The reason green or renewable energies are very cheap is there is not much labour or physical efforts involved in generating this energy. For example, solar energy can be used for generating electricity by installing solar panels and other hardware in your home. Once your have installed the solar energy panels, you can use them for many years without any additional labour and other related costs.
Therefore, you can save much money by using the renewable energy. So, just explore the ways for using renewable energy for your home or property.