The current labelling scheme makes a clear distinction between conventional fossil fuel technologies that are at best class A, and technologies that use renewable energy, which are often significantly more expensive, for which classes A+, A++ and A+++ are reserved.
Déantar idirdhealú soiléir sa scéim reatha lipéadaithe idir gnáththeicneolaíochtaí breosla iontaise atá in aicme A ar a mhéad agus na teicneolaíochtaí a úsáideann fuinneamh in-athnuaite, ach atá i bhfad níos costasaí, lena gcoimeádtar aicme A+, aicme A++ agus aicme A+++.