Selv om der er visse lighedspunkter, er de to markeders respektive karakter, herunder navnlig den ringe substitueringsmulighed, alligevel så forskellig, at det er passende at tale om to forskellige produktmarkeder, ét for gas og ét for elektricitet, frem for ét produktmarked for »energi«.
Although there may be some similarities, the respective characteristics, in particular the very limited degree of substitutability, nevertheless render it appropriate to consider that there are two different product markets, one for gas and one for electricity, rather than one product market for ‘energy’.