POWER MANAGEMENT METHOD, POWER MANAGEMENT SERVER, LOCAL CONTROL APPARATUS, AND POWER MANAGEMENT SYSTEM

A power management method according is provided with a step A of sending a control message from a power management server to a local control apparatus and a step B of performing, on the basis of source identification information that identifies a source of the control message, by the local control apparatus, control based on the control message. The source identification information is associated with a use type that identifies use of the control message.