Boiling Water Reactors (BWR) are a type of nuclear reactor that generates electricity by using water as both a coolant and a moderator. In a BWR, water is heated in the reactor core, where it boils and turns into steam. This steam then drives a turbine connected to a generator, producing electricity. BWRs operate at lower pressure compared to other reactor types, which simplifies their design. The steam produced in the reactor is directly used to turn the turbine, and after passing through the turbine, it is cooled and condensed back into water to be reused in the system.