Our house has an electricity potencia of 3.30 and the annexe which we rent out and is billed separately has one of 5.50. I believe we need to increase our house supply and decrease the annexe, as we will be using more electrical equipment than the previous owner, but the annexe is now only low usage. Am I right in thinking this, and if so how do I do it?!! Any help gratefully received - Confused of La Orotava!