Skip to main content

Home/ Groups/ qmstech2
troisichr99

Research Report: what are the best uses for solar power - 1 views

  • A quick search on TreeHugger shows that ' solar power ' most often occurs in connection with producing electricity and only secondarily in connection with solar water heaters
  • Compared to electrically heated Water , Solar Water Heating is 57% of the internal rate of return, the scientists found
ballardeth99

Infrastructure Battle: Renewable Tidal Energy vs. Telecommunications - 1 views

  • first tidal energy turbines
  • Both technologies require room for periodic ship-borne maintenance and repair access, with subsurface equipment which could impinge on the other facility if they're too close. And if one of the turbines breaks, as happened in 2010 with an earlier tidal turbine in the Bay of Fundy, PC Landing worries it could damage the nearby cable.
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
  • ...2 more annotations...
  • 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."
morehousejam98

Tidal Wave Energy - Quick Guide to Costs,Investment and How Tidal Generators Produce Ti... - 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.
dpurdy

Renewable Energy, Other sources of Renewable Energy - 0 views

  • "Worldwide, approximately 3000 gigawatts (1 gigawatt = 1 GW = 1 billion watts) of energy is continuously available from the action of tides.
  • The best areas are on the eastern sides of the oceans (western side of the continents) between the 40 and 60 latitudes in both the northern and southern hemispheres.
  • While the "wave power at deep ocean sites is three to eight times the wave power at adjacent coastal sites," constructing and mooring the site and transmitting the electricity to shore would be prohibitively costly.
  • ...1 more annotation...
  • There is a handful of wave energy demonstration plants operating worldwide, but none produces a significant amount of electricity.
  •  
    While the "wave power at deep ocean sites is three to eight times the wave power at adjacent coastal sites," constructing and mooring the site and transmitting the electricity to shore would be prohibitively costly.
stewartlia99

Wind Energy - 0 views

  • Cons:
  • The purchase and set-up of wind turbines can be expensive
  • Wind turbines require certain constant speeds to be productive (13 mph for large turbines, 9 mph for small turbines)
  • ...1 more annotation...
  • Wind farms can't sustain constant power due to daily and seasonal variance in wind
ballardeth99

Research Report: Is there pollution from tidal energy - 0 views

  • it offers almost unlimited potential at low costs and with no pollution.
baileyamb99

Ocean Energy - 0 views

  • Wave energy conversion takes advantage of the ocean waves caused primarily by interaction of winds with the ocean surface
buherjac99

qmstech's Websites on BonzoBox - 0 views

shared by buherjac99 on 22 Oct 12 - No Cached
    • buherjac99
       
      hols
logansar99

Ocean Energy - 0 views

  • The visual impact of a wave energy conversion facility depends on the type of device as well as its distance from shore
troisichr99

Research Report: does solar power contribute to global warming - 1 views

  • But only about 12 percent gets turned into electricity, and the rest is reradiated as heat--which contributed to Global Warming
  • solar panels trap a greater amount of energy from the sun than the natural terrain (since it is black) and consequently retains that energy on earth contributing to the rising temperatures on the planet.
rutalil00

Wind Power - Converting wind energy into electricity - 0 views

  • Wind power is produced by using wind generators to harness the kinetic energy of wind. It is gaining worldwide popularity as a large scale energy source, although it still only provides less than one percent of global energy consumption. The articles listed below explore wind power and its usage around the world.
  • Wind power is produced by using wind generators to harness the kinetic energy of wind. It is gaining worldwide popularity as a large scale energy source, although it still only provides less than one percent of global energy consumption. The articles listed below explore wind power and its usage around the world.
  •  
    Wind Power News | Wind Power Forum | Wind Power Directory | Videos Wind power is produced by using wind generators to harness the kinetic energy of wind. It is gaining worldwide popularity as a large scale energy source, although it still only provides less than one percent of global energy consumption.
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.
  • ...6 more annotations...
  • 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
janosjus99

Biofuels: Journey to Forever - how to make your own clean-burning biofuel - 0 views

    • janosjus99
       
      history on bio fuels
  • but if everyone had cars like ours, there'd be no need for roads."
morehousejam98

Tidal Power - 0 views

  • A dam-like structure is constructed across an estuary to trap a high tide of water and then let it pass through turbines to generate electricity. The water flow can generate electricity on the falling tide only, or on the falling and rising tide.
dpurdy

Visual Health Effects and Wind Turbines - The Society for Wind Vigilance - 0 views

  • In addition to noise pollution wind turbines also have visual burdens.
  • The health impact of visual burdens cannot be underestimated. An epidemiology study conducted by World Health Organization determined a “bad view out of window” increased the risk for depression by 40%. The same study also demonstrated disturbance by noise and sleep disturbance by noise increased the risk of depression 40%, and 100% respectively.
  • Wind turbines produce noise and visual burdens.
  • ...3 more annotations...
  • Scientific research confirms visuals impacts can adversely affect human health.
  • Wind turbine shadow flicker has the potential to induce photosensitive epilepsy seizures however the risk is low with large modern models and if proper planning is adhered to.
  • Wind turbine shadow flicker induced adverse human health effects include annoyance and/or stress.
pettitmat99

Soymet to distribute biofuels for engines - 0 views

  • All Soymet biofuel products have zero petroleum toxins and lower emissions. Primary byproducts are carbon dioxide and water vapor. These biodiesel fuels burn cleanly and produce the same amount of energy as conventional diesel fuels.
  •  
    Supposedly cleaner but still gives off emissions
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.
  • ...1 more annotation...
  • 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.
« First ‹ Previous 621 - 640 Next › Last »
Showing 20 items per page