To understand the basic theory and principles of power generation, AC vs DC generation, rectification and the types of generators in use in industry. The Synchronous alternator is discussed together with three phase supply and voltage regulation. Real and reactive power is defined and the basic theory of AC circuits discussed together with power factor, the power triangle and apparent power. Finally, the participant will understand speed, voltage and frequency control, series and parallel operation and load sharing. The course is divided into three sections. Section 1 describes the theory of generators with a brief history of power generation and the types of generators. Section 2 focusses on the asynchronous alternator, three phase connections, excitation of motor windings and a summary of voltage regulation. Section 3 discusses real and reactive power, the theory of AC electric circuits, reactive power, apparent power, power factor and the power triangle.