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Contents contributed and discussions participated by dpurdy

dpurdy

Biofuels: Ethanol and Biodiesel - Energy Explained, Your Guide To Understanding Energy ... - 0 views

  • U.S. Production 13.95 billion gallons 332.11 million barrels
  • U.S. Production 0.97 billion gallons 23.03 million barrels
dpurdy

Geothermal Energy and the Environment - Energy Explained, Your Guide To Understanding E... - 1 views

  • eothermal power plants do not burn fuel to generate electricity, so their emission levels are very low. They release less than 1% of the carbon dioxide emissions of a fossil fuel plant. Geothermal plants use scrubber systems to clean the air of hydrogen sulfide that is naturally found in the steam and hot water.
  • Geothermal plants emit 97% less acid rain-causing sulfur compounds than are emitted by fossil fuel plants. After the steam and water from a geothermal reservoir have been used, they are injected back into the Earth.
dpurdy

Use of Geothermal Energy - Energy Explained, Your Guide To Understanding Energy - Energ... - 0 views

  • In 2011, U.S. geothermal power plants produced about 17 billion kilowatt-hours (kWh), or 0.4% of total U.S. electricity generation.
dpurdy

Where Geothermal Energy Is Found - Energy Explained, Your Guide To Understanding Energy... - 0 views

  • Most Geothermal Resources Are Near Plate Boundaries The most active geothermal resources are usually found along major plate boundaries where earthquakes and volcanoes are concentrated. Most of the geothermal activity in the world occurs in an area called the Ring of Fire. This area encircles the Pacific Ocean.
  • The ring of fire goes around the edges of the Pacific. The map shows that volcanic activity occurs around the Pacific rim.Source: National Energy Education Development Project (Public Domain) Naturally occurring large areas of hydrothermal resources are called
dpurdy

How many Gigawatts sp of Electricity does the United States use each day? | ChaCha - 0 views

  • 3,816,000 Gigawatts of Electricity is used in the United states each year
  •  
    "3,816,000 "
dpurdy

Geothermal Energy Construction: Resource Requirements and Impact Sources - 0 views

  • The construction phase involves the construction of the geothermal field(s), infrastructure, power plants, and transmission lines.
dpurdy

Infrastructure Requirements for Geothermal Energy ?!? - Yahoo! Answers - 0 views

  • Transmission lines, Electric power transmission or "high voltage electric transmission" is the bulk transfer of electrical energy, from generating Geothermal plants. Source(s): http://en.wikipedia.org/wiki/Electric_po… 2 years ago
dpurdy

U.S. geothermal infrastructure could support 7.2 million people | SmartPlanet - 0 views

  • The geothermal energy process extracts heat from the Earth for the purpose of generating electricity to power homes. Most development in this area is concentrated at where tectonic plates meet, such as the western coasts of North and South America, the Mediterranean and east coast of Africa and East Asia.
  •  
    "The U.S. could have as much as 10 gigawatts of geothermal power at its disposal if current projects under development are completed, according to a new report. According to a new report from the Geothermal Energy Association, there are 144 new geothermal projects in 14 U.S. states currently under development. While the current U.S. geothermal infrastructure manages 3,100 megawatts, the new projects could add an additional 7,100 megawatts, or 7 gigawatts, of energy output."
dpurdy

Fuel Cell History - Fuel Cell Today - 0 views

  • William Grove, a chemist, physicist and lawyer, is generally credited with inventing the fuel cell in 1839
  • n the late 1950s and early 1960s NASA, in collaboration with industrial partners, began developing fuel cell generators for manned space missions.
    • dpurdy
       
      Great graphic showing history
dpurdy

Tidal stream generators - Brightside - 0 views

  • Tidal stream generators look and work like underwater wind turbines. As opposed to using the rising and falling movement of the tides, tidal stream generators take advantage of the fast moving sea currents (tidal streams), which flow when tides are moving in and out. These tidal streams cause the turbines to rotate, turning the generators which generate electricity. Tidal stream generators have the advantage of being much cheaper to build, and do not have as much of an environmental impact as a tidal barrage. The turbines turn relatively slowly, hence do not affect sea life. This is different to tidal barrages which can disrupt fish migrating up rivers from the sea.
dpurdy

How Does Tidal Power Work? - Energy Informative - 1 views

  • 450 TWh is the estimated yearly potential of electric power that can be produced from tidal energy. In addition to this comes a large and not yet estimated potential in river flows.
  • Tidal stream generators are very similar to wind turbines except their below the water surface instead of above or on land. The turbine and generator converts the movement of water coming from change in tide, the kinetic energy, into electricity. Water is 830 times denser than air and therefore can generate electricity at lower speeds than wind turbines.
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