What is the difference between ‘green’ and ‘grey’ energy?
Grey energy is another word for polluting energy or non-renewable energy. In generating gray energy, fossil fuels are used such as coal or gas.
Green Energy is electricity generated from sources that, cannot be exhausted. The sources are inexhaustible; it is also called sustainable energy. In the production of renewable electricity CO2 emissions are lower than for gray energy, or there are no CO2 emissions and there are less or no harmful substances that can have a negative effect on the environment and the climate.