Not exactly. The main energy source here is grafted together with electricity, but starships and stations in my world run off of warp cores. The cores annihilate matter and antimatter, mainly types of hydrogen, through fusion. It's a kind of nuclear energy, but ... not really.

[ Yes. ]

That energy can be run through all kinds of hardware, be stored in auxiliary power, and so on. We have emergency hydrogen reserves in the event something happens to the core, and redundant circuits and grids, but it's safest when it's one type.