GRID will cover the cost of setting up the account on your behalf.
 
The ongoing cost will depend on the amount of activity in the account. Each transaction in or out costs 49 cents so if there was 1 lodgement received and 1 payment back to your current account then this would cost 98 cents for that day. For a typical customer with 1 terminal settling 5 days a week, this would cost €4.90 each week. It does not vary based on the value of the transactions simply the amount of activity. 

For a larger loan that had 3 terminals settling, if they were all from the same provider and lodgement received at the same time of the day this would cost €1.96 (3 lodgements in and 1 withdrawal out).