None. It would knock out the power supply. That alone would kill our culture within 24 hours. Our homes would turn to ice (right now, my outdoors temperature is 12.4 Celsius below freezing, 10 F). We couldn't charge our cars. Our smartphones would go dead within a day or two. We couldn't charge our portables, and even with a diesel generator to power our desktop PC, the concentrator for our fiber internet connection, or maybe the local ISP itself, is dead from lack of power. The food in your freezer and fridge would rot - sooner in summertime than in winter, so what would you prefer: Freeze to death, or starve to death? What about your 'social' contacts, the socalled 'social' media?` What kind of entertainment would you have available? Could you read a book in the winter evening? (And: Do you have a book? :-)) Your local plant for filtering your drinking water probably depends on a huge amount of electricity. Expect it to close down. Same with your waste water / sour processing plant. Expect it to close down. If you want to look at your own electricity dependencies alone, disregarding things such as water supply and wastewater processing: Why don't you tonight, this Friday night, abruptly turn OFF your main electric switch (maybe you don't have a switch but you can unscrew the main fuses) without making any preparations at all. Leave the main switch off (or main fuses unscrewed) until Sunday night 8 days from now, and then tell how well you and your family fared. And how you did it, in which ways you compensated for the lack of electricity. I don't think very many families would dare to take up this challenge. And I believe that at least half of those who dared to, would ask for at least one day to prepare for it - have all their batteries charged, their gas tanks filled up etc. Very few of us are anywhere close to prepared for such an event.
