Introduction to basics of solar panels or photovoltaics

This resource introduces the fundamentals of solar photovoltaic technology, explaining how semiconductor materials convert light into electricity and comparing major cell types: crystalline silicon, thin-film (CdTe, CIGS), perovskite, organic, quantum dot, multijunction, and CPV. It includes reading comprehension, vocabulary with pronunciations, sentence completion, speaking prompts, videos with quizzes, grammar practice on conditionals, and a Kahoot review to reinforce understanding and application.