This document is an introduction to electrical engineering module submitted to Mrs. Preethi S. It provides information on the largest power plants in the world by type including the world's largest solar, nuclear, thermal, wind, tidal, ocean thermal, and biomass power plants. It also lists examples of common AC appliances like refrigerators, electric kettles, and air conditioners and DC appliances like laptops, wireless mice, and smartphones. Finally, it provides some specifications for laptop chargers, electric kettles, and electric irons.