really cool idea i had, you could make electric fences by making normal fence designs with metal, and thoes could be electrified, or you could generate powered minecart tracks that the carts will move faster than normal, but these couldn't be powered by redstone torches, you'd have to build a new type of block that generates energy and puts it into redstone circuts, causing them to glow white, and you could make rooms of these to produce more power, coincidentally, how do you get those smileys to work at the right of the posting box?
electric fences, powered mine tracks and generator stations