Boiling Water Reactors (BWRs) are a type of nuclear reactor that generates electricity by using nuclear fission to heat water. In a BWR, water is both the coolant and the moderator, meaning it slows down neutrons to sustain the fission reaction. The heated water turns into steam, which drives a turbine connected to a generator, producing electricity. BWRs operate at lower pressure compared to other reactor types, such as Pressurized Water Reactors (PWRs). This design allows the water to boil directly in the reactor core, simplifying the system. BWRs are widely used in various countries, contributing significantly to the global energy supply.