Transport pipe can be combined with redstone dust to create conductive pipes. These pipes are the only type of pipes that can carry the energy produced by engines to machines that can normally be powered by engines (See: Automatic Building and Automatic Mining).

The behaviour of conductive pipes has changed drastically in version 3.70. Pipes can no longer explode, and have no loss. Instead various pipes can handle different power levels, e.g. cobblestone can only handle 8MJ/t, while diamond can handle 1024MJ/t, enough to carry power from 178 Combustion engines.