I'm currently in process of an unusual project in So. CA. The customer's wife is sensitive to the frequency produced by the POCO's "smart meter" so we are installing a meter pedestal approx 150' away from the home. We are intersecting the 3" undergound conduit and will use his existing all in one panel as a subpanel. I have another contractor assisting since this is at least a 2-man wire pull and we are having a discussion on wire size. Anyone have an opinion? It's a 200A pedestal and a 200A all in one that we're converting. I think the house load is about 120 - 130 max. So, 2/0 or 3/0? The customer, of course would like to save the money by using 2/0 and it would be slightly easier to pull. The POCO is currently using a 3/0 triplex AL if I'm not mistaken.