Power outages are commonplace today. It could be a summer thunderstorm, a limited brownout, rolling blackouts, or even the effect of a tornado or hurricane. When the power’s out, life feels like it comes to a standstill – no TV, no radio, no Internet except on battery-powered, wireless devices. It’s inconvenient, to say the least. It also has consequences that go far beyond mere boredom. For instance, if the power’s out, you’ll find it challenging to get your car out of the garage if you need to go to the store or experience an emergency.