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parkergar99

A Quiet Breakthrough in Geothermal Energy - Businessweek - 1 views

  • Geothermal power has massive potential in many areas of the U.S. but it has long remained a niche technology.
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    Talks about how much potential there is
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    "While traditional geothermal can be cheaper than coal power, enhanced geothermal systems are generally more expensive than traditional ones. But being able to create multiple geothermal zones from one well brings down the overall cost of enhanced geothermal by 50 percent, Petty said."
greenhan99

Biodiesel Fuel Car, Biofuels Car, Biodiesel Fuel | GreenStudentU.com - 0 views

  • using biodiesel fuel reduces carbon dioxide emissions by 78% when compared to regular petroleum fuel.
kennedyeri98

STEP - Heating houses by sunlight-How sustainable is solar power generally? - 0 views

  • Solar energy does little to harm the environment.
  • Even when the sun does not shine because of cloud or dust, its diffuse rays can still be used to produce electricity or heat.
greenhan99

The Biofuels FAQs: The Facts About Biofuels: Ethanol - 0 views

  • Biodiesel consumption was much lower, about 250 million gallons in 2006
  • which requires an annual increase in biofuels use to 7.5 billion gallons by 2012.
manzellaann99

Advantages and Disadvantages of Solar Energy - 0 views

  • Geographical location and climate of a place can be a source of advantage or disadvantage of solar energy.
greenhan99

how long has biofuels been around - Google Search - 0 views

  • Biofuels have been around as long as cars have. At the start of the 20th century
butlerlei98

tidal energy - National Geographic Education - 0 views

  • Tidal energy is produced by the surge of ocean waters during the rise and fall of tides.
  • During the 20th century, engineers developed ways to use tidal movement to generate electricity in areas where there is a significant tidal range—the difference in area between high tide and low tide. All methods use special generators to convert tidal energy into electricity.
  • For most tidal energy generators, turbines are placed in tidal streams. A tidal stream is a fast-flowing body of water created by tides. A turbine is a machine that takes energy from a flow of fluid.
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  • The world's first tidal power station was constructed in 2007 at Strangford Lough in Northern Ireland. The turbines are placed in a narrow strait between the Strangford Lough inlet and the Irish Sea. The tide can move at 4 meters (13 feet) per second across the strait.
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    ". The United States has no tidal plants and only a few sites where tidal energy could be produced at a reasonable price."
cottonetar98

BP Alternative Energy - wind power - how it works - 0 views

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    An interactive video about wind energy.
manzellaann99

Discover Solar Energy ADVANTAGES DISADVANTAGES | PROS and CONS of Solar Energy - 4 views

  • Solar Energy systems are virtually maintenance free and will last for decades.
greenhan99

Biofuels - climate hit or climate hype? - Climate Action Programme - 0 views

  • Biofuels are renewable liquid or gaseous transport fuels derived from biomass (bacterial, plant or animal material).
wellsann99

STELR :: wind ENERGY - 1 views

  • STEP 1: Moving air pushes against the blades of the turbine, which are tilted to the direction of the wind. This makes the blades spin. In the process, some of the kinetic energy of the moving air is transformed into the mechanical energy of the spinning blades. (The wind still has some kinetic energy as it flows away from the turbine.) STEP 2: The shafts and the gears inside the gear box transfer the mechanical energy of the turbine to the generator. (The gears make the drive shaft to the generator spin faster than the shaft connected to the blade hub.) STEP 3: The generator transforms mechanical energy into electrical energy.
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    steps to converting win power to electricty
kramerjac99

Lockheed Martin · Wave and Tidal Energy - 0 views

  • Tremendous potential exists for clean energy in waves and tides. Lockheed Martin Mission Systems and Sensors (MS2) is leveraging decades of experience in designing and developing maritime systems into wave and tidal power systems. To do that, we have strategic relationships with key wave and tidal power technology providers. They will provide the technology to convert waves and tides into energy, and MS2 will provide the expertise to help make the systems work in harsh ocean environments and scalable for large-scale production. Wave power generates electricity using special buoys that use the rising and falling of ocean waves to generate electricity. MS2 is partnering with Ocean Power Technologies, Inc. (OPT) and WaveBob LLC to develop their respective wave energy systems for use in future utility-scale power generation projects. MS2 provides its expertise in systems integration, lean manufacturing, and test and optimization analysis to enhance OPT's and Wavebob’s wave power generation technology to utility-scale. Tidal power generating systems use underwater turbines designed to capture the kinetic motion of ebbing and surging ocean tides to produce power. MS2 provides design and manufacturing support to Singapore-based Atlantic Resources Corporation (ARC), which is testing its tidal turbines at the European Marine Energy Centre in Orkney, Scotland. MS2 is also exploring related technologies that can be adapted to shallow and low-rate tidal flows.
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    what is used to make it work
freedenjoh99

Fuel Cell Vehicles - 0 views

  • Currently, most hydrogen is made from natural gas through a process known as reforming. Reforming separates hydrogen from hydrocarbons by adding heat. Hydrogen can also be produced from a variety of sources including water and biomass.
greenhan99

Spotlight: How Biofuel Is Made - 0 views

  • Alcohol-based biofuels are produced in much the same way as liquor, though, of course with different emphasis. In fact, ethyl alcohol, or ethanol, which is the most commonly used bio-alcohol, is the same type of alcohol that is found in whiskey, vodka, gin, etc.  All of these are based on the fermentation of starches and sugars. The ingredients are gathered, ground up, mixed with water and left to ferment with the help of yeast or other organisms for some period of time (three years for Scotch whiskey!) before it is finally distilled into the final product.
manzellaann99

Solar Power-Advantages and Disadvantages - 0 views

  • Advantage: Solar energy is a completely renewable resource
  • The Solar Cells and Solar Panels that are needed to harness solar energy tend to be very expensive when you first purchase them.
  • Solar powered panels and products are typically extremely easy to install
greenhan99

How is Biofuel Made - 0 views

  • Where does the first phase for biofuel production begin? The sun takes credit for the very first step in this process. The sun helps to grow crops and plants, which are then eventually used to produce biofuel. Biofuel is actually derived from biomass, which can come from gas, solid and liquid states.
  • These crops that are specifically grown to be used to produce biofuels are referred to as feedstocks. These feedstocks are the raw and unprocessed form that the bio fuel is derived from. Among the more common types of feedstocks and crops that are used for the production of biofuels are corn, sugar crops, and forests. In addition, even some of the byproducts of materials such as those that come from wood can be used in this process. These special byproducts are often converted to the liquid forms of biofuels, which include methanol and ethanol. With the ability to use these byproducts, production methods have gotten a lot less expensive since there is much less waste involved.
  • In addition, there are also certain natural oils that are also used to help produce this special type of fuel. For example, oil palm, soybean and algae are surprisingly capable of being burned directly in certain types of furnaces and engines and can also be blended with certain types of fuels or petroleum based fuels for a more powerful blended mixture.
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  • Where does the first phase for biofuel production begin? The sun takes credit for the very first step in this process. The sun helps to grow crops and plants, which are then eventually used to produce biofuel. Biofuel is actually derived from biomass, which can come from gas, solid and liquid states.
  • Another means of producing biofuel that has proven to be especially efficient and cost effective is the conversion of vegetable oil to a burnable fuel that can be used with most types of engines.
butlerlei98

tidal energy steps to electricity - Google Search - 1 views

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    "Mills using tidal power can be dated back to 12th century Europe, a technology that followed colonists to the Americas."
wellsann99

Wind Power History - 0 views

  • It development of technology have been well proven over the years of time. When the sun emit heat to warm of the Earth it would be unbearable without wind. Wind widely disperses the heat making it bearable for all living things to survive. Without wind nothing would exist, it would just like all the other planets uninhibited by human nature or any living things for that matter.
  • A wind turbine is a machine that transforms kinetic energy from the wind into mechanical energy.
  • Wind power was first used in ancient times with the sail boat.
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  • When windmills were first developed they were used to assist man with the chores of pumping and grinding.
  • Well wind power is the transformation of energy from wind to electricity or other forms of energy
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    what wind power is
behanjos99

Geothermal Energy | Energy and Global Climate Change in New England | US EP - 0 views

  • The constant temperature of the Earth creates underground sources of heat, hot water and steam which become fuel to produce geothermal energy. People have used various forms of geothermal energy for hundreds of years; modern technology accesses these underground reservoirs, steam deposits and hot air by drilling, and then using the heat or hot water directly or using it to create power. Geothermal energy represents an enormous, underused power source that provides clean, renewable energy in virtually unlimited supply.
wellsann99

Wind Turbines - How Long Have They Been Around? - 1 views

  • Essentially wind turbines were made first between 500-900 A.D. by the Persians and were used as a water pumping system
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    when it was first made 
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