exajouler

Exajouler is a nonstandard term that has been used to denote a unit of energy equal to one exajoule (10^18 joules). It is not part of the International System of Units; the official SI unit for this magnitude is the exajoule (symbol EJ).

The term combines the SI prefix exa- with the noun joule; however, exajouler is rarely used in formal publications, and many editors prefer exajoule. When exajouler appears, it is typically defined to be equivalent to 1 EJ and should be clarified to avoid ambiguity.

Conversions and scale: 1 exajouler equals 10^18 joules, roughly 277.8 terawatt-hours (TWh). In energy statistics, EJ is the standard unit; exajouler would carry the same numeric value but is uncommon and could lead to confusion in cross-disciplinary communication.

Context and usage: Global energy use is measured in exajoules per year, and many national statistics report in EJ. The hypothetical term exajouler may appear in informal discussions or in multilingual texts as a direct translation, but it remains nonstandard in technical writing.

See also: Exajoule, energy units, prefix exa-.