I might add, that you can't currently get them to STOP dropping the generator every 30 sec or so. (I even tried right-clicking on the ability next to their name. Had no effect.)

The goofy AI behaviour, combined with the relatively low healing from the ability, meant I retrained that Officer after a few away missions. It's an interesting idea, to give Engineers a bit of AE healing. However, as the skill currently works, it is not at all usefull.