work coal purposes

  • Generating Electricity from Coal - Duke Energy

    We work diligently to ensure our coal-fired plants comply with all state and federal environmental permits and we regularly monitor our facility operations with robust samplings of water and aquatic life. We also carefully manage coal combustion residuals and potential impacts to air, water and land.

  • Coal | How it Works

    Coal. The Department of the Interior is responsible for 570 million acres of federal land with coal resources. This responsibility comes from the Mineral Leasing Act of 1920 and the Mineral Leasing Act for Acquired Lands of 1947, as amended. In 2013, the United States was the world's second largest coal producer after China.

  • What is coal used for? - usgs.gov

    Coal is primarily used as fuel to generate electric power in the United States. The coal is burned and the heat given off is used to convert water into steam, which drives a turbine. In 2012, about 39 percent of all electricity in the United States was generated by coal-fired power plants, according to the U.S. Energy Information Administration.

  • Coal Excise Tax | How It Works

    Coal Excise Tax. In the United States, one of the taxes coal producers must pay is a federal excise tax when they mine coal. Producers pay the tax when the coal is first sold or used. 1 The tax does not apply to lignite or to coal mined in the U.S. for export. Learn more about how coal revenues work.

  • What is coal gasification? | HowStuffWorks

    Coal gasification is said to have greater efficiency than conventional coal-burning because it can effectively use the gases twice: the coal gases are first cleansed of impurities and fired in a turbine to generate electricity. Then, the exhaust heat from the gas turbine can be captured and used to generate steam for a steam turbine-generator.