Total energy production describes all of the energy a country produces and is expressed in quadrillion BTUs. BTU is a unit of energy, the British thermal unit, approximately equal to 1055 joules.
Source: EIATotal energy production describes all of the energy a country produces and is expressed in quadrillion BTUs. BTU is a unit of energy, the British thermal unit, approximately equal to 1055 joules.
Source: EIA