The four engineers bring to life the ship's electrical gadgetry, including one of her massive ovens, and use it to host a first-class dinner, based on the Titanic's menus, for descendants of those who were aboard her maiden voyage. They reveal that although most Britons' homes in 1912 used gas lamps and coal-fuelled cooking and heating facilities, four huge electric generators pumped out more energy than most land-based power stations of the day to provide passengers with a luxurious environment.