Good evening!  Hopeful someone can

Good evening!  Hopeful someone can help me.  I currently live in the U.S.  and own a home near Lucca.  I will not be able to get back to Italy for a while but need to have some work done.  Specifically I am going to need a new contract for my electric-have a two year contract that will be expiring-and also need to get some work approved by the council.  I have a friend that lives there and would be able to handle all the paperwork needed.  Is there a way to give my friend permission to handle these things for me?  Perhaps a power of attorney?  And if so, how would I go about getting it?  Thanks so much for any help you can provide.