If you had two identical looking houses for identical rent, one could cost $100/mo to heat/cool and the other could cost $300. This isn't really something that renters are realistically able to discriminate on.
The status quo is the energy costs are hidden and only revealed one month after you move in.
https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=LEG...
Surely they can ask for what the expected utilities are? Failing that, asking for what the trailing 12 month's bills were.