I know this has been suggested before but I just wanted to suggest it again but make it a bit different. Aluminum ore would be found higher than tin and lower than copper. It would be used to replace refined iron in the production of wind mills. It could also be used to make wires that can handle medium voltage and lose about .5 EU per block. It can also replace replace refined iron when making electronic circuits. So do you think Aluminum could work in IC2?