sentence: Geothermal energy uses the heat from deep underground to make electricity.
sentences_after: It can be used to produce steam which goes up a pipe, which then pushes a turbine. It is best used in places where the Earth's crust is not real thick. In the United States, most of the western states have areas where this works. California makes the most geothermal energy.
concept_name: geothermal energy
headings: Renewable resource Types of renewable resources Geothermal
categories: Energy Materials Economics