I had (Fred Kawamoto) Creative Lighting Solutions came out to my home a few years back to upgrade my home electrical system.
Work entailed upgrading my Electrical panel from 100 amp to 200 Amp. Passed City inspection and PG&E first time.
I guess having 5 PC's in the house, with AC can really be a drain on a 100 amp home electrical system. So Fred suggested the 200 Amp upgrade and spread out the electrical systems and balance out the circuit breaker. Fred and his crew are great, they are extremely courteous and great to work with.