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Solar energy - Wikipedia, the free encyclopedia - 3 views

en.wikipedia.org/...Solar_energy
shared by mattianic99 on 09 Mar 12 - Cached
  • Solar energy, radiant light and heat from the sun
  • radiant light and heat from the sun,
  • Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar energy technologies include solar heating, solar photovoltaics, solar thermal electricity, solar architecture and artificial photosynthesis, which can make considerable contributions to solving some of the most urgent energy problems the world now faces.[1] [2]
  • ...2 more annotations...
  • "the development of affordable, inexhaustible and clean solar energy technologies will have huge longer-term benefits. It will increase countries’ energy security through reliance on an indigenous, inexhaustible and mostly import-independent resource, enhance sustainability, reduce pollution, lower the costs of mitigating climate change, and keep fossil fuel prices lower than otherwise. These advantages are global.
  • Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
  • butlerlex99 on 11 Mar 13
     
    The technologies of solar energy.
  • dextereli99 on 11 Mar 13
     
    the advantages of solar energy for the world 
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Coal Burning, Fossil Fuels, Pollution - National Geographic - 0 views

environment.nationalgeographic.com/...high-cost-coal pollution fossil fuels
shared by dpurdy on 17 Sep 13 - No Cached
  • dpurdy on 17 Sep 13
     
    We have more coal than other countries.
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Solar power - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/Solar_power solar pollution cost co2 sustainable convert history form current
shared by bondycal00 on 20 Sep 13 - Cached
  • The Life-cycle greenhouse-gas emissions of solar power are in the range of 22 to 46  g/kWh depending on if solar thermal or solar PV is being analyzed, respectively. With this potentially being decreased to 15 g/kWh in the future.[71] For comparison (of weighted averages), a combined cycle gas-fired power plant emits some 400-599 g/kWh,
  • bondycal00 on 26 Sep 13
     
    Solar power is the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP). Concentrated solar power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. Photovoltaics convert light into electric current using the photoelectric effect.
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Geothermal Could be Cheaper than Fossil Fuels with $3 Billion DOE Investment Says NYU S... - 0 views

cleantechnica.com/...-doe-investment-says-nyu-study geothermal cost
shared by wooddan99 on 26 Sep 13 - No Cached
  • Geothermal could be cheaper than fossil fuels, according to a study just published at NYU Stern. Yet, strangely, geothermal received the fewest Federal DOE dollars invested in R&D over the last 8 years
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http://www.howstuffworks.com/fuel-efficiency/biofuels/10-advantages-of-biofuels.htm - 0 views

www.howstuffworks.com/...10-advantages-of-biofuels.htm cost biofuel
shared by schmettererdav00 on 27 Sep 13 - No Cached
  • As gas prices rise and global warming becomes more pervasive, more people are using biofuels as a way to save money and decrease their consumption of fossil fuels.
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Tidal Energy Advancing in USA >> Offshore Wind - 1 views

www.offshorewind.biz/...tidal-energy-advancing-in-usa usa tide current
shared by mannixjul00 on 23 Sep 13 - No Cached
  • Verdant Power founders are planning to install up to 30 turbines with the total capacity of 1MW in the East Channel of the East River, writes The Day news portal.
  • Verdant Power is among the first companies that are exploring the potential of the tidal energy. Unlike the wind and solar power, tidal power is predictable as the tides move in correlation with the movement of the moon
  • The initial costs for the development of this technology are high. The company has raised USD 35 million so far and needs USD 25 million more.
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Biofuels Cause Global Warming - 0 views

www.outsidethebeltway.com/biofuels_cause_global_warming_ biofuel co2
shared by bakereli00 on 23 Sep 13 - No Cached
  • Almost all biofuels used today cause more greenhouse gas emissions than conventional fuels if the full emissions costs of producing these “green” fuels are taken into account,
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Why Is a Solar Panel in New Jersey 15 Times More Valuable Than One in Arizona? - 0 views

www.resilience.org/...e-valuable-than-one-in-arizona solar cost new jersey
shared by kirkpatrickcon99 on 23 Sep 13 - No Cached
  • The combined health, environmental, and climate benefits of a solar panel in New Jersey are fifteen times greater than those associated with one in Arizona, and a wind turbine in West Virginia displaces twice as much carbon dioxide as the same turbine would in California.
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Articles about Solar Energy - Los Angeles Times - 0 views

articles.latimes.com/...solar-energy cost sustainable current solar
shared by kirkpatrickcon99 on 23 Sep 13 - No Cached
  • with $25 million set aside for low-income customers. An additional $100.8 million will be used to swap out water heaters powered by electricity.
  • NATIONALHawaii sets 'breakthrough' framework for new solar power
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Wind Power: A Lucrative Renewable Energy Source - 0 views

sites.duke.edu/...comparison solar wind
shared by olsentri00 on 24 Sep 13 - No Cached
  • olsentri00 on 24 Sep 13
     
    There are many renewable energy sources out there right now, continuing to develop in their technology and production. All of these resources have very high capital cost inputs that are hard to compete with cheap natural gas. However, these new resources are abundant, some even limitless, and unlike natural gas, fuels and oil, they will be around for a long time.
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Wind Energy - 2 views

www.nrdc.org/...wind.asp history wind convert form
shared by olsentri00 on 24 Sep 13 - No Cached
  • olsentri00 on 24 Sep 13
     
    Locations of the 400+ U.S. Wind-Related Manufacturing Facilities and Number of Wind Industry Jobs per State Source: (AWEA 2011) U.S. Wind Industry Annual Market Report, Year Ending 2010 Wind power is an affordable, efficient and abundant source of domestic electricity. It's pollution-free and cost-competitive with energy from new coal- and gas-fired power plants in many regions.
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SolarEnergy.com - Solar Power & Renewable Energy - 1 views

solarenergy.com solar cost co2 sustainable
shared by bondycal00 on 24 Sep 13 - No Cached
  • bondycal00 on 24 Sep 13
     
    Learn more about solar electric power on SolarEnergy.com. Resources on renewable energy, solar panels for home & commercial properties.
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Why Solar Powered Energy Is Better Than Fossil Fuels - 2 views

www.thesolarco.com/gy-is-better-than-fossil-fuels powered fossil fuels energy solar fuel cell cost pollution current form convert
shared by kilburnzac00 on 24 Sep 13 - No Cached
  • kilburnzac00 on 24 Sep 13
     
    In only one hour, the amount of energy that shines on the Earth equates to the amount used by the world's population in an entire year. Mankind has developed a way to utilize the sun's vast energy by converting its sunlight into electricity via photovoltaics and other solar power methods.
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