This document provides an overview of different types of energy including mechanical, electrical, electromagnetic, sound, chemical, nuclear, and thermal energy. It discusses renewable energy sources like solar, wind, hydroelectric, and marine energy as well as non-renewable sources such as coal, petroleum, and natural gas. The document also addresses environmental impacts of energy production and consumption including increased greenhouse effect, acid rain, oil spills, nuclear waste, and atmospheric pollution. Finally, it describes how energy power stations and wind turbines work to generate electricity.