Can't Power Pulverizer? (Feed the Beast Horizons)
The Pulverizer uses between 2400 (for most gemstone ores) and 4000 (for most metals) RF per Operation. And Charcoal is worth 24K RF, so that's 6 Per for most metals. Steel Crusher vs Pulverizer is about equal in efficiency then for Ore usage, with the Pulverizer pulling ahead if you are crushing gems/wool/other stuff.