A quadrillion BTU, also called a “quad,” is a unit of energy equal to one quadrillion (10¹⁵) British Thermal Units or 36 million tons of coal. In international terms, this equals about 1.055 exajoules (EJ).
In simple terms, quadrillion BTU is the globally accepted unit to measure national and global energy consumption.
Quadrillion BTU is mainly used by governments, researchers, and international organizations use it to compare energy production, consumption, and trade across fuels and regions. It provides a standard unit for analyzing long-term energy trends.
Quadrillion BTU is important because it simplifies the measurement of massive energy quantities. By standardizing data across countries and fuels, it helps policymakers, scientists, and businesses understand global energy demand.