This comprehensive training manual discusses various aspects of solar PV technologies and systems in a student-friendly manner. The text deals with topics such as solar radiation, various types of batteries, their measurements and applications in SPV systems, emphasizing the importance of solar PV technology in renewable energy. It also discusses methods of estimating energy requirement, SPV modules, their formations and connection to arrays, grid-connected SPV captive power systems, tips over troubleshooting of components used in solar PV system, and system design. The text is supported by solved and unsolved examples, practical information using numerous diagrams and a worksheet that helps with understanding. The text is intended for technicians, trainers and engineers who are working on solar PV systems.