During the last two decades it is observed that the increase in electricity demand and environmental concerns resulted in a rapid growth of power production from renewable energy sources. Among all renewable sources, wind energy is one of the most costs effective forms to generate electrical power. In Canada, government initiatives to advance the expansion of wind energy were implemented moderately later than many other countries around the world. However, since 2001, Canadian wind energy has grown to become one of the world’s largest and fastest growing markets, driven largely by national production incentives and provincial renewable energy targets. In this book, two case studies are presented based on the eastern part of Canada. The book gives a detail analysis of wind energy based isolated power systems, as well as wind farms for remote grid systems. Review of the existing literature is discussed in the second chapter of this book. In the third chapter, the mathematical models of different components in wind-diesel hybrid power systems are developed.