The purpose of this interactive online course is to teach participants how transmission and distribution (T&D) systems generally deliver to customers the power produced by power plants. The course describes how the major components of a T&D system function and how electricity flows through these components on its journey from the power plant to customers.

At the conclusion of this course, participants should have a basic understanding of how transmission and distribution systems operate. They should be able to identify the basic components of a transmission and distribution system and explain their functions. They should also be able to describe the flow path from a power plant, through a typical T&D system, to the customer.