Question about first electricity bill

Bit the bullet and am now a holiday homeowner (apartment) in the Valle d'Aosta. Thanks for everyone's help on the forum.

Just got my first electricity bill and I have a couple of questions (see image below).

The 'Contributo in quota fissa' - Is that a fixed amount in euros every month?
The 'Onere ammiistrativo' - Is that a one time administrative fee to switch the service to my name? I certainly hope so!
The 'Imposta di Bollo su contratto' - Does this vary as a % of the overall bill?

Thanks again

Think you will find that these are just the initial fees for setting up the new account, plus the famous bollo!!

Should not show on your next bill.

Yes, as Geo points out, the bill covers the initial connection fees and is different from the ones you will receive in the future.

Thanks again everyone