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sconzomic99

Tidal energy extraction: renewabl... preview & related info | Mendeley - 0 views

www.mendeley.com/...ewable-sustainable-predictable

cost tide sustainable

shared by sconzomic99 on 12 Mar 13 - No Cached
  • The tidal flow of sea water induced by planetary motion is a potential source of energy if suitable systems can be designed and operated in a cost-effective manner
murphymat98

Tidal Energy | Renewable Energy Development - 0 views

renewableenergydev.com/tidal-energy

cost tide

shared by murphymat98 on 12 Mar 13 - No Cached
  • The cost of setting up a tidal power station can be very high, although once in place the operating costs are low. As an example of the cost of setting up, a proposed 8000 MW tidal power plant and barrage system on the Severn Estuary in the UK has been estimated to cost US$15 billion, while another in the San Bernadino strait which would produce 2,200 MW as a tidal fence in the Philippines will cost an estimated US$3 billion.
coreyemi99

What is Solar Energy? - 0 views

www.technologystudent.com/...solar1.htm

form

shared by coreyemi99 on 12 Mar 13 - No Cached
  • Solar power is energy from the sun and without its presence all life on earth would end. Solar energy has been looked upon as a serious source of energy for many years because of the vas
  • amounts of energy that are made freely available, if harnessed by modern technology.
  • coreyemi99 on 12 Mar 13
     
    What solar power is
jack wells

Environmental impact of wind power - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...ronmental_impact_of_wind_power

cost pollution

shared by jack wells on 12 Mar 13 - No Cached
  • Compared to the environmental impact of traditional energy sources, the environmental impact of wind power is relatively minor, slightly higher than the environmental impact of hydro power on a life-cycle basis. Unlike electricity derived from fossil fuel-powered generating plants, wind power consumes no fuel and emits no air pollution in operation. As well, wind power consumes no fuel in operation, unlike nuclear power plants which do.
wellsann99

How does wind generate electricity? - Curiosity - 1 views

curiosity.discovery.com/...-turbines-generate-electricity

wind convert

shared by wellsann99 on 12 Mar 13 - No Cached
  • the wind turbine collects kinetic energy from the wind and transfers it to the generator. The blades on the turbine turn as the wind blows. As these blades move, they rotate a shaft connected to the rotor of a generator. The spinning magnets of the generator convert that rotational energy into electricity.
  • wellsann99 on 12 Mar 13
     
    how wind becomes electricty
cheniermab99

Wind Energy: Facts - 0 views

www.mass.gov/...wind-energy-facts.html

wind co2

shared by cheniermab99 on 12 Mar 13 - No Cached
  • 1 MW of wind energy can offset approximately 2,600 tons Waste heat recovery  file size 4MB of carbon dioxide annually.
  • 29,440 Megawatts (MW) of wind energy are currently installed in the United States, and an additional 5,866 MW are under construction.Over 8,500 MW were installed in the US in 2008 (just beating out China with 6,300 MW). This represents: 50 percent increase from 200742 percent of all new generating capacity installed in 2008$17 billion investment44 million tons of carbon emissions avoided (equivalent of 7 million cars)35,000 new jobs
kenyonlau99

Where Does Solar Energy Come From - PV Gap - 0 views

www.pvgap.org/...es-solar-energy-come-from.html

solar form

shared by kenyonlau99 on 08 Mar 13 - No Cached
  • Solar energy is energy from the sun, it is a renewable source of energy and does not cause pollution.
  • kenyonlau99 on 08 Mar 13
     
    where does solar/photovoltaic energy come from? answer above!
rascoekat00

Tidal Power - How Tidal Power Plants Work - 0 views

inventors.about.com/...tidal_power.htm

tidal energy

shared by rascoekat00 on 11 Mar 13 - Cached
  • Tidal power traditionally involves erecting a dam across the opening to a tidal basin. The dam includes a sluice that is opened to allow the tide to flow into the basin; the sluice is then closed, and as the sea level drops, traditional hydropower technologies can be used to generate electricity from the elevated water in the basin. Some researchers are also trying to extract energy directly from tidal flow streams.
  • Another form of ocean energy is called tidal energy. When tides comes into the shore, they can be trapped in reservoirs behind dams. Then when the tide drops, the water behind the dam can be let out just like in a regular hydroelectric power plant.
  • kramerjac99 on 11 Mar 13
     
    How it works
freedenjoh99

Fuel Cell Vehicles - 0 views

www.consumerenergycenter.org/...index.html

fuel cell form

shared by freedenjoh99 on 11 Mar 13 - Cached
  • 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.
wellsann99

STELR :: wind ENERGY - 1 views

stelr.org.au/wind-energy

wind convert

shared by wellsann99 on 11 Mar 13 - No Cached
  • 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.
  • wellsann99 on 11 Mar 13
     
    steps to converting win power to electricty
wellsann99

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

www.articlesbase.com/...-they-been-around-1479922.html

wind history

shared by wellsann99 on 11 Mar 13 - No Cached
  • Essentially wind turbines were made first between 500-900 A.D. by the Persians and were used as a water pumping system
  • wellsann99 on 11 Mar 13
     
    when it was first made 
kramerjac99

Tidal Energy Ltd » The Technology - 0 views

www.tidalenergyltd.com/?page_id=640

tidal energy

shared by kramerjac99 on 11 Mar 13 - No Cached
  • Tidal energy is a form of hydropower that converts the energy of the tides into electricity or other useful forms of power. The tide is created by the gravitational effect of the sun and the moon on the earth. Tidal energy is therefore a predictable form of renewable energy, which can be harnessed in two forms:
  • kramerjac99 on 11 Mar 13
     
    what it is.
mchughkon99

World's fist commercial scale tidal energy generator nears completion - 0 views

www.gizmag.com/...9110

tide scale

shared by mchughkon99 on 11 Mar 13 - No Cached
  • April 4, 2008 Bristol based renewable energy company Marine Current Turbines has completed the first installation phase of the 1.2MW SeaGen Tidal System at Northern Ireland’s Strangford Lough - a site chosen for its combination of fast tidal current and ability to provide shelter from bad weather which may hinder the construction process.
vanierfel98

How Green is Geothermal Energy?: Clean Energy, Renewable Energy, Sustainable Energy: Gr... - 1 views

www.greatgreenidea.com/reen-is-Geothermal-Energy.html

geothermal sustainable

shared by vanierfel98 on 11 Mar 13 - No Cached
  • It is an energy source that is considered renewable because both rain and heat in the earth replenish themselves naturally.
  • vanierfel98 on 11 Mar 13
     
    Geothermal energy is renewable
millingtoneli99

Aquamarine Power - Why wave power? The potential to capture clean sustainable energy fr... - 2 views

www.aquamarinepower.com/...why-wave-power

wave sustainable

shared by millingtoneli99 on 11 Mar 13 - No Cached
  • Ocean waves are generated by wind passing over the surface of the sea - a process which often begins many hundreds or thousands of miles from shore.
  • rodriguezjos99 on 11 Mar 13
     
    "Ocean waves represent our planet's last untapped natural renewable energy resource.  Over 70 per cent of the earth's surface is covered with water.  The energy contained within waves has the potential to produce up to 80,000TWh of electricity per year - sufficient to meet our global energy demand five times over. The potential to capture energy from the sea offers a vast and endless source of clean sustainable electricity."
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