Sekundärenergie
Sekundärenergie refers to energy that has been converted from a primary energy source into a more usable or transportable form. Primary energy sources are those found naturally in the environment, such as coal, oil, natural gas, solar radiation, wind, and hydropower. These primary sources must undergo a transformation process to become secondary energy.
Common examples of secondary energy include electricity, hydrogen, and biofuels. Electricity is generated from various primary
The concept of secondary energy is important in energy economics and policy. It highlights the efficiency losses