I was going with what Tesla said in the third post.
If he recalls correctly,the PG&E Green Book stipulates 200A 240VAC as the minimum service, and 100A 240VAC for a condo/ apartment/ or temporary power poles or pedestals.
The OP lives in PG&E territory.
Edit: By George, both Murray and Square D offer center meter 200 amp all in ones after all.
Last edited by electure; 04/07/14 06:14 PM. Reason: see above