Energy consumption is the amount of energy used.^[1]

Biology

In the body, energy consumption is part of energy homeostasis. It derived from food energy. Energy consumption in the body is a product of the basal metabolic rate and the physical activity level. The physical activity level are defined for a non-pregnant, non-lactating adult as that person's total energy expenditure (TEE) in a 24-hour period, divided by his or her basal metabolic rate (BMR):^[2]

${\displaystyle {\text{PAL))={\frac {\text{TEE/24h)){\text{BMR))))$

Demographics

Topics related to energy consumption in a demographic sense are:

• World energy supply and consumption
• Domestic energy consumption
• Electric energy consumption

Effects of energy consumption

• Environmental impact of the energy industry
  • Climate change
• White's law

Reduction of energy consumption

• Energy conservation, the practice of decreasing the quantity of energy used
• Efficient energy use