We were told today that it may be 5 to 7 days without power on the peninsula coast (unincorporated san mateo county). I have a 4.5KW dual fuel invertor gen and 6 full bottles of propane for day time use (too noisy for night - 54dB my a$$). But I also have 175Ah of battery back-up power (simple to set up - just get a battery tender, a marine deep cycle SLA battery as big as you like, and as many tunze safety connectors as you need, and it will switch over automatically when the power goes out - love my tunzes -should last about 4 days). They even work from 12V solar panels. Bad news is I have a second reef that I have all the power back-up parts in place, except the Tunze safety connectors. Ironically, I ordered the parts last week just in case, and they were due for delivery tomorrow, but CHP is shutting Highway 1 as a precaution, so UPS won't be able to deliver anymore...
Sadly, although I have a huge number of solar panels, I haven't been able to find somebody to install and isolator switch and dedicated power outlet, so they are useless for the power outage
Good luck folks - we'll need it!