Lesson 2: Energy Transfers and Transformations – We learned that wind turbines are built in places where wind blows most of the time. A generator is turned by the turbine changing kinetic energy of wind to electric energy. Then we learned that in hydroelectric plants the mechanical energy of falling water being channeled through a turbine is transformed to electric energy. Next we learned that in a geothermal plant thermal energy from within Earth is transferred to water creating steam which is used to turn turbines in electric generators.