There is a huge power failure tonight affecting far southwest Arizona, southern California (not the city of L.A.), and Baja California. Details here.
About an hour ago, I was answering a journalist's question about disaster preparedness. I reiterated my advice to keep your car's gas tank at least half full, have a long extension cord, and purchase an inexpensive power inverter that can be used to charge a cell phone, run small appliances (or your 'fridge for intervals to keep things cool if the door is closed), etc. It is not as good as a generator, but it is a lot less expensive and less trouble.
I have two of them (one for my wife's car and one for mine).