Are you looking for solar off-grid solution for your house, boat, RV, treehouse, tiny house, or to supply your critical loads in your house? Then this book is for you. It provides a basic understanding of the working of a solar photo-voltaic system. It also guides you on how you can size an off-grid system using the energy demand. From the energy demand, the book guides you to different resources such as photovoltaic geographic information and how to integrate the information into designing an off-grid system that will meet the energy demanded throughout the year. You will size the PV generator, the charge controller, inverter, and battery bank. There is detailed and simplified explanation of the individual components and how to size them appropriately to meet the energy demanded by the loads. There are also illustrations that help you better understand the needed design steps.For those that are hands-on, but with little electrical knowledge, you will learn the basics of electricity, the characteristics of a solar panel, the different types and operation of charge controllers, the different types of inverters as well as energy storage systems.