Energibærere

Energycarriers are a convenient form of stored energy. Electrical energy is an example of an energy carrier. We cannot find any usable electrical energy in nature, and it is therefore an energi carrier and not an energy source. Hydrogen gas does not exist in large amounts on Earth either and we cannot use it is an energy source, but we use it as an energy carrier.

Most of the electrical energy produced in Norway comes from hydroelectric power plants. The energy source is hydroelectricity, but we convert it into electrical energy so that it is easier to transport and use later.

Electrical energy itself is not harmful for the environment. Whether it is sustainable or not depends on the energy source. The electrical energy produced in Norway usually comes from hydroelectricity. However, most of the electrical energy produced worldwide comes from burning fossil fuels, and is therefore not sustainable.