Originally Posted by Stubbie
What I'm saying is the power companies do not upgrade to 150 amp services or 175 amp services to dwellings they upgrade to 200 amps or 400 or more. What you hang as a builder or electrician is another story. You can find 150 amp panels but its been awhile since I have seen one anywhere but the supply house. I did see one at the hardware the other day.
Thanks Stubbie for the information. It may be a little different out here in California. I disagree with you on what the power company wants to upgrade. My power company (PG&E) will pull any conductor I request within reason. It of course needs to match the panel I install. I have a 100amp service at present, feed by 1/0 Alu. The PoCo said that I could use the existing feed for a 125amp upgrage and they will pull any size conductor thru a 4" conduit that I need to provide if I want something higher.
The latest on my upgrade is as follows: I wish to have a 200amp service but I don't want to tear-up the whole driveway to trench 55' at 27" deep to install a new 4" conduit. I wanted to have them pull 2/0 copper thru my existing 2" conduit, but my power company doesn't work with copper. So the rep said that I could install a new vault next to the existing and divert the existing conduit to the new vault and pull my own copper to my new vault. I would provide a 4" conduit from the old vault to the new vault and they would pull 3' of 4/0 Alu conductors and connect to my 2/0 copper. I then would be responsible for the 55' run to my meter.
I think this is the least disruptive and the least expensive too.