People don't understand the size of the battery banks needed to sustain , say, a 100 amp source at 120 volts, plus the controllers and inverters. And for conventional batteries you must have proper storage facilities with safety systems like fire suppression,venting, containment, stuff. Expensive and requires space somewhere. We have used solar panels for years, in cloudy conditions they still produce a lesser but usable amount of electricity, lower voltage and current but maybe 50% of rating at the worst if it isn't plumb dark. Not sure about under smoke conditions, and if the panels get dirty they don't put out well either. Heavy rain bothers them, leaves or obstructions of any kind. Takes a lot to make a house run well off solar, we use them on powered equipment trailers and the likes with our business tho, with battery compartments rated about 150% of load on each unit. The survivors in California need to beg POTUS to help them. Beg him to declare whatever he needs to declare in order to be able to help them...HintHintHint. NodWinkNodWinkNodWink...