Btw it is hard to call EBF efficient in terms of Coal if you making Steel Dust. For example 4 Small pile of steel dust requires 120000 EU. It is 360000 steam. The most efficient in terms of coal - High Pressure Coal Boiler produces 48000 litres of steam per coal.
360000 / 48000 = 7.5 Coal. Ofcourse you can make Steel Ingot twice cheaper from Iron+Oxygen (that is if you have Oxygen). Bronze blast furnace requires only 4 Coal. More than that High Pressure Coal Boiler will generate those 360000 steam exactly 20 minutes. Plus add all those losses when converting and transporting. So the only reasonable use for EBF at this stage will be Aluminium. And for Steel Ingot you will be stuck with BBF for long.
It is more efficient to use wrought iron(made in arc furnace) for steel in EBF. that way it needs only ~18kEU per ingot.