I've done many things to dry brass. Usually, I set the brass in front of a fan in my reloading room. I made a wooden frame with screen stretched across it, and rigged up a cardboard plenum to force the air through the screen. Only power used is the fan.
I've set the same framed screen on top of the outside AC unit, in the summer this works great, and is probably the quickest way to dry brass (as long as the AC is running). I've used the shoe rack in the clothes dryer, but I have to imagine this uses a lot of power. I've used a toaster oven. I've used a food dehydrator (with dedicated trays just for brass). I've set the brass out in the sun on a hot dry day (this, of course, is the least expensive). Recently, the cold spell has caused me to dry brass in front of the fireplace insert. This killed 3 birds with one stone - heated the house, dried the brass, and put humidity into the air.
Give me time, and I may think of other ways to dry brass.