The term 'consumption of energy' can be summarized as the USAGE of energy. This refers to the amount of energy that is used by individuals, businesses, and governments. It is important to understand the consumption of energy in order to develop strategies for reducing energy use and improving efficiency. Consumption of energy can be measured in terms of energy sources, such as electricity, natural gas, and oil. Additionally, it can also be measured in terms of energy efficiency, which is the ratio of energy output to energy input.