ArtificialMachine learning IntelligenceTechnology (AI) and Machine LearningMachine learning (ML) have become an essential tool across numerous fields, enabling the development of systems capable of autonomous learning and decision-making. This chapter introduces key concepts and terminology related to AI and ML, explores the main machine learningMachine learning paradigms, and outlines common categories of machine learningMachine learning techniques. By providing a comprehensive overview, the reader is able to gain a solid foundation to understand and apply AI and ML in renewableRenewable energyEnergy applicationsRenewable energy.