However, such a positive result now makes it difficult for consumers to distinguish the best performing products: they might think that in buying an A+ class product they are buying one of the most efficient on the market, while in fact they are sometimes buying one of the least efficient ones.
Ent selline positiivne areng teeb nüüd parimate näitajatega toodete eristamise tarbijale keeruliseks: tarbijad võivad arvata, et A+ klassi toote näol ostavad nad ühe kõige energiatõhusama toote turul, kuigi tegelikult ostavad nad sel juhul mõnikord kõige ebatõhusama.