Are there situations where you would want to use eneporter instead of enhanced hammer? I don't see it getting much play at all.
Well, depending on the meta and techs being used, it might be a good option.
Not the best example, but for Buzzwole running Regirock-EX / Diancie ♦ plus carbink break for recovery. If you hammer the strong energy, they're most likely recovering it with carbink eventually. but if using Eneporter into any of those (probably the regi?), they're stuck with only regular fighting being discarded.
Another good one, moving a counter energy into a GX on bench, making it less effective. Again, if discarded they could use special charge; but if on something not being targeted (yet?), it's almost as good as in the Lost Zone (although they can have ways around it, like doing Guzma/Switch and retreating)
I don't see it making a much better job than Enhanced as of right now, but it could get some good use eventually!