In a few years the currently used AC power (110 or 230 Volt) will be replaced by intelligent DC power systems, based on USB connectors. This means that each and every building has to be rewired, outlets needs to be replaced and all the electronic equipment needs to be equiped with direct DC circuits. But the advantage is that every device can now take current when its needed, and as much as needed. And an intelligent micro-grid system is created. Levering available current to those devices that it need at moments its needed. No more wasting power by transformers, and overbooking the used Amperes, blowing up fusions.
This would be great!