Duck and Cover

This has probably already been posted, but how do I destroy the power nodes in Canyon City? I tried shooting them and using a remote detonator to blow it up, but they just repair themselves after a few minutes.

That sucks. Thanks for the help.

I have a super mutant with a plasma rifle, but when I put it in his hands, it says 'cannot use.' Am I doing something wrong?

I have a super mutant with a plasma rifle, but when I put it in his hands, it says 'cannot use.' Help?