This document discusses different types of electric power plants. It describes conventional power plants like nuclear, fossil fuel, combined cycle, hydroelectric plants. It also covers non-conventional renewable power plants such as wind, solar, geothermal, biomass. Wind power plants use the movement of wind to turn blades and generate electricity. Solar power plants use heat from the sun to create steam to turn turbines or convert sunlight directly to electricity via photovoltaic panels. The document also notes the environmental impacts of different power sources and discusses an emerging technology that uses wind turbines to extract water from air.