Energy consumption¹refers to the amount of energy or power used. In the body, energy consumption is part of energy homeostasis and is derived from food energy. Energy consumption in the body is a product of the basal metabolic rate and the physical activity level.World energy supply and consumption²refers to the global primary energy production, energy conversion and trade, and final consumption of energy. Energy can be used in various different forms, as processed fuels or electricity, or for various different purposes, like for transportation or electricity generation.