Green energy is the general term for electricity that has been generated in a sustainable way.
At present, it concerns electricity generated in a sustainable way, but in the future it might be possible to buy sustainably produced gas or heat. Green energy can be produced by various renewable energy sources, such as wind energy, solar energy and hydropower. In some countries, government does not impose energy tax on green energy. In those cases, the customer eventually pays less than the true additional costs. The money paid by consumers of green energy is used for new sustainable energy projects.