In this course, we will look at methods of grounding at new facilities and at existing buildings. We will look at the sheath theory of grounding and how this impacts the design for deep driven, horizontal and multiple electrodes. We will look at methods for testing and measuring soil resistivity and ground resistance. We will learn how to calculate resistance of single and multiple vertical ground electrodes using manual calculations and nomograms. An Introduction to materials commonly used in data center grounding design.