@christineandmo - I doubt this is pg&e - probably some telemarketer for some solar sales co. Sadly, I've been getting calls from this number (but no message left and I never answer the phone with numbers/people I don't recognize). I have gotten calls recently from another solar company SPOOFING pg&e's phone number (800-743-5000). Hate to block a valid number....
Received a Call from this number saying they were calling "on behalf of PG&E" the guy said he was with the "national renewable energy center" and wanted to send someone by to talk to me about solar options for my home. The company website states "We are a referral company like 1-800-DENTIST. We help you find the most cost effective deal in your area for solar." their website is seriously weak if its even the correct website "http://nationalrenewableenergycenter.com/" I would recommend if you are interested in solar that you call around and do the work yourself. these guys seem shady.
3 rings, no message. I blocked my caller ID and called it back - it was a disconnected number. This number is spoofed, so good guess, it is SCAM or Telemarketer.