Had a massive 2hr workshop/lecture today with two blokes from a company called Simms (the worlds biggest scrap metal recycling company) and they were going though a few figures with us which I thought may be of some interest to you guys.
Their biggest crusher is the same size as 4 average houses and will crush a double decker bus dropped in whole.
Their car crushers that do 3 cars at a time cost £800 in electricity just to turn on with nothing in.
The same machine costs £70,000 per month in electric bills when crushing cars on a daily basis!