Dont have your MFE where your (im assuming) geothermal generator is. Either use waterproof pipes and pump the lava to your house, or wherever your energy storage is. Or try using teleport pipes, to teleport the lava directly from the pipe to your geothermal generator that is right beside the mfsu. This is a far more efficient set and forget method. But once you have taken the investment of the teleport pipes it will be simple to move the pump to where the lava is regardless of how far away it is.
I know this doesnt answer your transferring EU question, but it does offer a solution to the problem.
