BWR Mark I

The BWR Mark I is a type of nuclear reactor design developed by General Electric, primarily used in boiling water reactors. It features a containment structure called a drywell and a wetwell (or suppression pool) that help manage steam and pressure during operation or potential accidents. The design allows water to boil inside the reactor core to generate steam that drives turbines for electricity. The Mark I is known for its simplicity and compactness but has faced safety concerns, especially after the Fukushima Daiichi incident, leading to ongoing reviews and improvements in nuclear safety.