<human>:  How does a nuclear power plant works?
<bot>: A nuclear power plant works by using nuclear fission to create heat to generate steam, which in turn is used to power a turbine and generate electricity. Nuclear fission occurs when an atom’s nucleus splits, releasing energy and additional particles. The process is controlled and monitored by a series of safety systems to ensure that the nuclear reaction does not become too unstable, and ultimately, cause a nuclear meltdown. The heat generated from the fission is used to create steam, which is passed through a turbine to produce electricity. The nuclear fuel is re-supplied periodically, or when necessary, to sustain the fission process.