Q: I can't put the Transformer in X vehicle, why?
A: I can check for ya, just gimme the name of the X vehicle and the mod used to add the equipment grid, if it exists.

Q: I've put the Transformer in the X vehicle, the Transformer Energy charged but it's not working ( filling the red fuel bar ), why?
A: First check if you don't have any fuel in the slot ( coal, etc ) if that's true then, well, your only hope is to ask the mod dev of X vehicle to add, raise_built and optionally raise_destroy and it should work.