You want to a solar off-grid solution for your house, boat, RV, treehouse, tiny house, or to supply your critical loads in your house? You can do it yourself with the help of this book. The book provides basic understanding and guide on the working of a solar photo-voltaic system. For those that are hands-on, but with little electrical knowledge, you will learn the basics of electricity, which will help you develop a system of your own. The illustrations elaborate on the solar PV components and their significance in designing a PV system that will meet your needs. 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.