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sopranodan99

Wave & Tidal Energy Technology | Renewable Northwest Project - 0 views

  • Potential
  • Wave energy resources are best between 30º and 60º latitude in both hemispheres, and the potential tends to be the greatest on western coasts
  • While no commercial wave or tidal projects have yet been developed in the United States, several projects are planned for the near future, including projects in the Northwest
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  • ‘Pelamis’ wave energy conversion devices and generates a combined 2.25 MW of electricity. OPD plans to expand the facility to produce 22.5 MW in 2007
  • The United States receives 2,100 terawatt-hours of incident wave energy along its coastlines each year, and tapping just one quarter of this potential could produce as much energy as the entire U.S. hydropower system.
  • Total Annual U.S. Incident Wave Energy 2,110 terrawatt-hours
  • The United States receives 2,100 terawatt-hours of incident wave energy along its coastlines each year, and tapping just one quarter of this potential could produce as much energy as the entire U.S. hydropower system
  • In addition to its abundant solar, wind and geothermal resources, the Pacific Northwest is also uniquely situated to capture the renewable energy of the ocean. Special buoys, turbines, and other technologies can capture the power of waves and tides and convert it into clean, pollution-free electricity. Like other renewable resources, both wave and tidal energy are variable in nature. Waves are produced by winds blowing across the surface of the ocean. However, because waves travel across the ocean, their arrival time at the wave power facility may be more predictable than wind. In contrast, tidal energy, which is driven by the gravitational pull of the moon and sun, is predictable centuries in advance.
  • The United States receives 2,100 terawatt-hours of incident wave energy along its coastlines each year, and tapping just one quarter of this potential could produce as much energy as the entire U.S. hydropower system
  • The Unit
  •  
    the amount of 1/4 of energy around the coasts could be equal to the amount energy produced by hydropower
rutaemi98

How Fuel Cells Work | ClearEdge Power - 1 views

  • About the size of a refrigerator, the ClearEdge Plus fuel system hooks up to your natural gas supply and through its fuel processor, draws the hydrogen molecules out. Then, through an electrochemical process that combines the hydrogen molecules with oxygen, the unit generates up to 5kW of electricity for use throughout your entire home and allows you the control to select specific critical circuits you want to remain "up" even when the grid is "down."
handste99

Revolution Green: A True Story of Biodiesel in America - 0 views

  • There are over 180,000 fueling stations nationwide. About 40% of those service petroleum diesel fuel, and less than 1% service biodiesel.
  • Biodiesel is simple to use and requires no costly engine conversions or infrastructure changes to the current delivery system of diesel fuel.
jurektho99

Group items matching "history geothermal" in title, tags, annotations or url - qmstech2 | Diigo Groups - 0 views

  • The word geothermal comes from the Greek words geo (earth) and therme (heat). So, geothermal energy is heat from within the Earth. We can recover this heat as steam or hot water and use it to heat buildings or generate electricity. Geothermal energy is a renewable energy source because the heat is continuously produced inside the Earth. ... Cancel
ackleysam99

Pros & Cons of Solar Energy - 0 views

  • Solar panels give off no pollution, the only pollution produced as a result of solar panels is the manufacturing of these devices in factories, transportation of the goods, and installation.
  • he production of energy from the use of fossil and some renewable fuels (e.g. wind turbines) can be noisy, yet solar energy produces electricity very
  • quietly
sokolkyl00

Sustainable energy - Wikipedia, the free encyclopedia - 1 views

  • Sustainable energy is the sustainable provision of energy that meets the needs of the present without compromising the ability of future generations to meet their needs.
  • Sustainable energy is the sustainable provision of energy that meets the needs of the present without compromising the ability of future generations to meet their needs.
  • Sustainable energy is the sustainable provision of energy that meets the needs of the present without compromising the ability of future generations to meet their needs. Technologies that promote sustainable energy include renewable energy sources, such as hydroelectricity, solar energy, wind energy, wave power, geothermal energy, and tidal power, and also technologies designed to improve energy efficiency.
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  • At this rate, many experts believe that solar energy is not efficient enough to be economically sustainable given the cost to produce the panels themselves.
bannonmel99

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

  • Winds are caused by the interaction of the uneven heating of the atmosphere with the uneven surface of the earth, and the earth’s rotation
rodriguezjos99

Tidal power - Wikipedia, the free encyclopedia - 0 views

  • The world's first large-scale tidal power plant (the Rance Tidal Power Station) became operational in 1966.
    • dpurdy
       
      This is a barrage system. Old tech.
  • Tidal power, also called tidal energy, is a form of hydropower that converts the energy of tides into useful forms of power - mainly electricity.
  • Tidal power is extracted from the Earth's oceanic tides; tidal forces are periodic variations in gravitational attraction exerted by celestial bodies
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  • Tidal power is the only technology that draws on energy inherent in the orbital characteristics of the Earth–Moon system, and to a lesser extent in the Earth–Sun system.
  • A tidal generator converts the energy of tidal flows into electricity. Greater tidal variation and higher tidal current velocities can dramatically increase the potential of a site for tidal electricity generation
  •  
    "tidal power has potential for future electricity generation. Tides are more predictable than wind energy and solar power."
giumarraant99

Hydrogen Fuel Cell | Yale Office of Sustainability - 1 views

  • At 250 kilowatts, the fuel cell produces 40-50% of the electricity for the Environmental Science Center. Its electricity production alone is 47% effective, and the addition of heat recovery allows for up to 60% efficiency
  • While designed to run on pure hydrogen, Yale’s fuel cell is actually powered by natural gas, 80% of which is usable hydrogen. The fuel cell takes in natural gas and water and produces water, electricity, and hot air.
  •  
    Explains what this energy source is best suited for and how this energy source reduces other forms of pollution
rosskyl99

The Disadvantages of Wave Energy | eHow.com - 0 views

  • Because waves are erratic, the amount of energy a wave generator can produce is unpredictable and, therefore, cannot be used as a sole reliable energy source.
  • accidental hydraulic fluid leaks can cause a major environmental problem.
  • A collision could cause a hydraulic spill or leak and become an environmental hazard.
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  • Boats not able to see the generators could cause a potential collision hazard and pose problems for the safety of both those on board and to the wave energy generator.
  • Wave energy boasts many advantages such as its low cost, zero to no pollution, and a large energy output.
  • Wave energy generators can cause noise pollution and be a nuisance to those living close to them, according to the UK Department for Business Innovation & Skills. The noise emanating from a generator, though, is often covered up by the noise of the waves.
  • Wave energy generators can cause noise pollution and be a nuisance to those living close to them, according to the UK Department for Business Innovation & Skills. The noise emanating from a generator, though, is often covered up by the noise of the waves. Wave power generators can also be unsightly to some.
  • Wave energy generators can cause noise pollution and be a nuisance to those living close to them, according to the UK Department for Business Innovation & Skills. The noise emanating from a generator, though, is often covered up by the noise of the waves. Wave power generators can also be unsightly to some.
  • Wave energy generators can cause noise pollution and be a nuisance to those living close to them, according to the UK Department for Business Innovation & Skills. The noise emanating from a generator, though, is often covered up by the noise of the waves. Wave power generators can also be unsightly to some. Floating devices are large snake-like machines floating parallel to one another throughout an area close to the seashore. Some may find them offensive or unpleasant.
  •  
    wave cost is low
morehousejam98

Tidal Wave Energy - Quick Guide to Costs,Investment and How Tidal Generators Produce Tidal Power | Green World Investor - 1 views

  • .In this form of Tidal Power,a Barrage is built near the coast where water is collected during the periods of high tides.During low tide the barrage allows the water from the reservoir to move towards the ocean or sea.The potential energy of the water at a higher level is converted to electricity using Turbines.
hughesacam99

Wave Energy Pros and Cons - Tidal and Ocean Wave Power Still Niche Technologies | Green World Investor - 2 views

  • Wave Power is quite immature,costly and unproven in large scale. While some companies have made good progress, the technology remains largely unproven and has only been put to actual test in pilot cases.
  • While Wave Energy has been known since the 1700s the progress has been extremely slow.
  • One of the biggest problems of Renewable Power is that it is intermittent in nature as it generates energy only when there are waves. This problem can be solved with energy storage however this leads to additional costs.
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  • Severe Weather like Storms and Typhoons can be quite devastating on the Wave Power Equipment especially those place on the Sea Floor.
  • This is a disadvantage which is common to all  the 3 types of Water based Energy that is Tidal, Hydro and Waver Energy. Some forms of Energy are just better suited to some places.
  • Wave Power generate power quite far away from the consumption of electricity. Transportation of Wave Energy can be quite cumbersome and expensive. Some Wave Energy Generators are converting power at the bottom of the ocean or far away from the shoreline. Moving that power towards where it is used can be difficult.
  • The sight of wave generators around the shoreline can look quite ugly and cause loss of tourism potential around shorelines. Also local residents can have problems even with wave power equipment which is not far offshore. The Cape Wind Energy project off the shore of Massachusetts has been delayed by over 10 years as it has drawn serious objections from the owners of coastal homes about loss in their property values.
  • A Wave Power Plant can cost around$6-10 million million to be spent in building 1 Megawatt.
  • Waver Energy does not require any fuel like most other sources of energy
  • Wave Energy is powered by the waves of the ocean which are totally free just like Wind and Sunlight.
  • Wave Energy Generators can be installed in various sizes with as little as 1 MW. This is not possible for other energy forms which require a minimum large size such as Coal, Nuclear etc.
troisichr99

Research Report: does solor powers pollution than CO2 when compared to fossil fuels? - 0 views

  • But as much as it poses a health risk, a group of researchers from the National Renewable Energy Laboratory point out that the relative risks are still light when compared to the use of fossil fuels
bannonmel99

Energy from Wind Power - 0 views

  • Wind energy is a pollution-free, infinitely sustainable form of energy. It doesn’t use fuel; it doesn’t produce greenhouse gasses and it doesn’t produce toxic or radioactive waste.
phinneycha99

The Energy of Light - Lesson - www.TeachEngineering.org - 0 views

  • Visible light is only one type of EM wave. We use different kinds of electromagnetic waves for many different purposes.
  •  
    light is electromagnetic radiation.
efana1

http://www.hydrogen.energy.gov/pdfs/doe_h2_fuelcell_factsheet.pdf - 3 views

    • efana1
       
      Good overview of the potential uses
  •  
    Facts about Hydrogen Fuel Cells
bureaumar98

Biofuels | Biofuel Guide - 0 views

  • There have been studies that prove the many benefits of substituting fossil fuels (petroleum, etc) with biofuels such as biodiesel and ethanol. In its simplest sense, such biofuels are biodegradable which means they are derived from organic materials. They are naturally renewable. It can create numerous jobs since our own farmers can practically make them domestically. Consequently, our reliance on foreign sources of fossil fuels will be significantly reduced. Moreover, these biofuels emit nontoxic and cleaner emissions in comparison to traditional fuels. These alternative fuels also do not promote global warming, since the carbon they emit is taken back to the environment.
  • biofuel is far more simple and easy to use
potterzac97

Solar vehicle - Wikipedia, the free encyclopedia - 0 views

  • Power density: Power from a solar array is limited by the size of the vehicle and area that can be exposed to sunlight. While energy can be accumulated in batteries to lower peak demand on the array and provide operation in sunless conditions, the battery adds weight and cost to the vehicle. The power limit can be mitigated by use of conventional electric cars supplied by solar (or other) power, recharging from the electrical grid.
smithcol98

Discover the true FACTS about Solar Energy | INTERESTING Solar Energy FACTS - 0 views

  • Solar Energy is better for the environment than traditional forms of energy.
  • Solar energy can also be used to heat swimming pools, power cars, for attic fans, calculators and other small appliances. It produces lighting for indoors or outdoors.
  • Accounting for only 5 percent of the world's population, Americans consume 26 percent of the world's energy.
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