On Infinity.
I just upgraded my wiring to support my larger energy needs. I used to have RedNet Energy Cables, which can accept EU and RF, and output EU, RF, and MJ, without needing any kind of conversion thing - the cable does it. Really awesome and all, but it only supports 1000 RF/t or 250 EU/t, which is simply not enough for me - it makes my IC2 machines painfully slow. So I did some research, and the wiki says that MFR machines such as the Harvester and the Planter (on which my entire power generation runs), run on RF, but also accept EU. To me, this implies that they will convert EU to RF as necessary. But for me, they don't.
I just upgraded to HV cables, and now my tree farm is not working anymore. The cable doesn't connect. It's dissappointing, but apparently I need a machine or something like that to convert EU to RF.
How do I do that?