Electricity generation is the process of generating electric power from sources of primary energy. For electric utilities, it is the first process in the delivery of electricity to consumers.
There are currently three living retired justices of the Supreme Court of the United States: John Paul Stevens, Sandra Day O'Connor and David Souter. As retired justices, they no longer participate in the work of the Supreme Court, but may be designated for temporary assignments to sit on lower federal courts, usually the United States Courts of Appeals.
Before settling at nine in 1869, the number of Supreme Court Justices changed six times. In its entire history, the Supreme Court has had only 16 Chief Justices, and over 100 Associate Justices.