Exploring Biomass

Exploring Biomass

Exploring Geothermal Heat within the earth What is Geothermal Geothermal energy comes from the heat within the Earth. The word geothermal comes from the Greek words geo, meaning earth, and therme, meaning heat. Geothermal energy is generated in the Earths core, almost 4,000 miles (6,400 km) beneath the Earths surface.

We can dig wells and pump the heated, underground water to the surface. People around the world use geothermal energy to produce electricity, to heat homes and buildings, and to provide hot water for a variety of uses. Exploring Geothermal 2018 The NEED Project History of Geothermal Geothermal energy was used by ancient people for heating and bathing. Even today, hot springs are used worldwide for bathing.

The first successful American geothermal plant began operating in 1960 at The Geysers in northern California. There are now geothermal power plants in seven states, with more in development. Emerald Spring, Norris Geyser Basin, Yellowstone National Park, Wyoming Image Wikimedia Commons Exploring Geothermal 2018 The NEED Project Where is Geothermal Energy Found? The hottest geothermal regions are found along major plate boundaries where earthquakes and volcanoes are concentrated. Most of the worlds geothermal activity occurs

in an area known as the Ring of Fire, which rims the Pacific Ocean and is bounded by Indonesia, the Philippines, Japan, the Aleutian Islands, North America, Central America, and South America. Most of the geothermal activity in the world occurs around the Pacific Ocean in an area called the Ring of Fire. Exploring Geothermal 2018 The NEED Project Hydrothermal Resources There is more than one type of geothermal energy, but only one kind is widely used to make electricity. It is called hydrothermal energy. Hydrothermal resources have two common ingredients: water (hydro) and heat (thermal).

Depending on the temperature of the hydrothermal resource, the heat energy can either be used for making electricity or for heating. Exploring Geothermal 2018 The NEED Project Low Temperature Resources: Heating (50-300F, 10150C) This low temperature geothermal energy is used for heating homes and buildings, growing crops, and drying lumber, fruits, and vegetables. In the U.S., geothermal heat pumps are used to heat and cool homes and public buildings. Each year about 50,000 geoexchange systems are installed in the U.S. Almost 90 percent of the homes and businesses in Iceland use geothermal energy for space heating.

Exploring Geothermal 2018 The NEED Project High Temperature Resources: Electricity (250-700F, 150-370C) Hydrothermal resources at high temperatures can be used to make electricity. These high-temperature resources may come from either dry steam wells or hot water wells. Geothermal wells are one to two miles deep. Dry steam plant: the steam from the geothermal reservoir is piped directly from a well to a turbine generator to make electricity. Hot water plant: some of the hot water is turned into steam. The steam powers a turbine generator just like a dry steam plant. When the steam cools, it condenses to water and is

injected back into the ground to be used over and over again. Exploring Geothermal 2018 The NEED Project Geothermal Electricity Generation The United States leads the world in the amount of electricity generated with geothermal energy. Today, geothermal produces almost 16 billion kilowatt-hours, or less than one percent of the electricity produced in the United States.

In 2015, 22 countries (including the U.S.), generated a total of about 76 billion kWh of electricity from geothermal energy. Geothermal energy is cheaponce a new power plant is built, it can make electricity for less cost than a coal or natural gas plant Exploring Geothermal 2018 The NEED Project Geothermal and the Environment Geothermal energy does little damage to the environment. Geothermal power plants are clean. They produce

almost no emissions because they do not burn a fossil fuel like coal, gas, or oil to generate electricity and they dont have to transport fuel, like most power plants. Geothermal power plants are compatible with many environments. They have been built in deserts, in the middle of crops, and in mountain forests. Geothermal features in national parks are protected by law. Exploring Geothermal 2018 The NEED Project Geothermal power plant emitting steam. The steam is turned into water and put back into the Earth. Image source EIA: Stock photography (copyrighted)

For More Information The NEED Project www.need.org [email protected] 1-800-875-5029 Energy Information Administration U.S. Department of Energy www.eia.gov Exploring Geothermal 2018 The NEED Project NEED IS SOCIAL! Stay up-to-date with NEED. Like us on Facebook! Search for The NEED Project, and check out all weve got going on! Follow us on Twitter. We share the latest energy

news from around the country, @NEED_Project. Follow us on Instagram and check out the photos taken at NEED events, instagram.com/theneedproject. Follow us on Pinterest and pin ideas to use in your classroom, Pinterest.com/NeedProject. Exploring Geothermal 2018 The NEED Project

Recently Viewed Presentations

  • Canadian Supply Chain Food Safety Coalition

    Canadian Supply Chain Food Safety Coalition

    Canadian Supply Chain Food Safety Coalition Annual Report for 2007 Presented at the Annual Meeting 30 January 2008 Via Conference Call & Webcast Canadian Supply Chain Food Safety Coalition Our Vision: Canada's agriculture, fisheries and food industry will have a...
  • Chapter 2

    Chapter 2

    Roman Numerals. A smaller number in front of a larger number means subtraction, all else means addition. For example, IV means 4, VI means 6. You would not put more than one smaller number in front of a larger number...
  • The National Lottery Heritage Fund Strategic Funding Framework

    The National Lottery Heritage Fund Strategic Funding Framework

    Introduction to The National Lottery Heritage Fund. Highlights of the National Lottery Grants for Heritage. Available support and how to apply. What we are going to cover?
  • Social Psychology and the Law

    Social Psychology and the Law

    CLASS 25 * * * * JURY PSYCHOLOGY Example of Applied Psychology Applying principles of personality and social psychology to an important real-world issue Issues: Obedience & conformity Also group dynamics Obedience as a trait The Authoritarian personality Doesn't mean...
  • MESOAMERICA - Lago Vista ISD

    MESOAMERICA - Lago Vista ISD

    MESOAMERICA MOST LIKELY THEORY First Americans originated in Gobi Desert Some migrated to Siberia around 15,000 years ago Crossed Bering Strait in Alaska Land bridge probably existed at the time Gradually dispersed throughout North and South America NEW THEORY Ancestors...
  • PRF for DIR-600 A1

    PRF for DIR-600 A1

    Product Position. DHP-W306AV is a new D-Link Powerline solution features 802.11n wireless speeds of up to 300 megabits per second and HomePlug AV data transmission speeds of up to 200Mbps.
  • EchoLink: A Summary - Rice University

    EchoLink: A Summary - Rice University

    EchoLink: A Summary PHYS 401: Physics of a Ham Radio Eastman Landry Goals of Presentation Introduce terminology Show use of the Interface Show how to customize Echolink to your own preferences Discuss general Operation practices Answer Questions EchoLink The Basics...
  • Climate Change and Water Resources: Global and Local Impacts

    Climate Change and Water Resources: Global and Local Impacts

    CLIMATE CHANGE AND WATER RESOURCES: GLOBAL AND LOCAL IMPACTS Groundwater systems generally respond more slowly to climate change than surface water systems. Groundwater levels correlate more strongly with precipitation than with temperature, but temperature becomes more important for shallow aquifers...