User blog comment:Brendenp123/What can I do with a nuclear reactor? i.e. powering things like a TV or some object./@comment-99.238.154.184-20121116011719

I'm going to assume you are relating to IC2. To answer your question, power is used to power every single piece of IC2 machinery. These machines can help you with everything and can make your life a lot easier. Such as, the macerator can grind stuff into dust which effectively doubles your amount of metals.

However, I would highly recommend NOT using a Nuclear Reactor this early in the game because they're quite expensive to make and to control. Also, it's incredibly dangerous for new players, a single mistake could end up leaving your house in a smoking crater. Use Solar Panels for now, they'll be enough to power everything you need and is insanely safe to use.