Nuclear power plants generate electricity by using nuclear reactions, primarily through a process called nuclear fission. In this process, the nucleus of an atom, usually uranium, is split into smaller parts, releasing a significant amount of energy. This energy heats water to produce steam, which drives turbines connected to generators. The main components of a nuclear power plant include the reactor, where fission occurs, and the cooling system, which helps manage the heat produced. While nuclear power is a low-carbon energy source, it also raises concerns about radioactive waste and the potential for nuclear accidents.