Fundamentals: Solar PV

Before diving into the world of solar photovoltaic systems, it's essential to establish a solid understanding of the electrical principles that underpin how these systems work. In this module, Electricity Basics and PV Module Technical Information, we'll start from the ground up — covering foundational concepts like voltage, current, resistance, and power — and then connect those principles directly to how solar PV modules generate, carry, and deliver electricity. You'll also explore the key technical specifications found on a PV module's datasheet, giving you the knowledge to evaluate and compare modules with confidence. Whether you're brand new to electricity or just need a refresher, this module sets the stage for everything that follows in the course.

A solar PV system is made up of much more than just the panels — it's a carefully coordinated collection of components that work together to safely capture, convert, and deliver solar energy. In this module, Solar PV System Components, we'll take a look at the key parts that make up a PV system, including modules, inverters, racking and mounting hardware, and more. You'll learn what each component does, how it fits into the overall system, and why proper selection and installation matters. By the end of this module, you'll be able to identify the major components of a solar PV system and understand the role each one plays in keeping the system running safely and efficiently.

Not all solar PV systems are built the same — from grid-tied rooftop installations to off-grid systems in remote locations, each configuration comes with its own design considerations and unique set of hazards. In this module, Types of PV Systems and Safety, we'll explore the most common types of PV systems, including grid-direct, battery-based, and hybrid systems, and discuss where and why each type is used. We'll discuss the safety practices and precautions that anyone working with or around PV systems must understand. Solar systems involve serious electrical hazards, and a strong safety foundation isn't just good practice — it's essential.

Installing a solar PV system the right way means more than just getting the panels on the roof — it means following the codes, standards, and best practices that ensure every installation is safe, reliable, and built to last. In this module, Installation Standards and Best Practices, we'll walk through the key regulations and guidelines that govern PV installations, including relevant sections of the National Electrical Code (NEC) and industry standards that installers are expected to know and follow. We'll also cover practical best practices for workmanship, system layout, and documentation that separate a quality installation from one that creates problems down the road.