Yes. Mekanism and Immersive Engineering both use FE, they just change the name. This means you can use their energy interchangeably. That said, the Mekanism generators have a lot higher energy output than anything Immersive Engineering has, but that might not necessarily be a problem.
Create, by default, has no way of generating FE power. You need an addon for that. There's a couple different ones out there, depending on the version.