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Self-Powered Programmable Streetlights - The Autonoma - 0 views

www.trendhunter.com/...streetlights-autonoma lighting
shared by Colin Bennett on 18 Feb 08 - Cached
  • This solar public lighting pole is totally autonomous and can be placed in any isolated area where electricity is not available.
  • Colin Bennett on 18 Feb 08
     
    Thankfully, designers continue to explore solar powered public lighting. This version includes more intelligent functions.
  • Hans De Keulenaer on 18 Feb 08
     
    Compared to electrified lighting, this is quite a negative impact for copper, but if we set the baseline as no lighting, it becomes quite positive. Referring to my recent post on the impact blog, the impact of this technology is probably positive in the short run, but long-term negative.
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Future Scenarios - Introduction - 0 views

www.futurescenarios.org climate future peak oil roadmap scenarios
shared by Hans De Keulenaer on 02 Jun 08 - Cached
  • The simultaneous onset of climate change and the peaking of global oil supply represent unprecedented challenges for human civilisation. Global oil peak has the potential to shake if not destroy the foundations of global industrial economy and culture. Climate change has the potential to rearrange the biosphere more radically than the last ice age. Each limits the effective options for responses to the other. The strategies for mitigating the adverse effects and/or adapting to the consequences of Climate Change have mostly been considered and discussed in isolation from those relevant to Peak Oil. While awareness of Peak Oil, or at least energy crisis, is increasing, understanding of how these two problems might interact to generate quite different futures, is still at an early state.
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Start-up says it can make solar panels out of dirty silicon | Tech news blog - CNET New... - 0 views

www.news.com/8301-10784_3-9803094-7.html photovoltaics silicon
shared by davidchapman on 29 Oct 07 - Cached
  • davidchapman on 29 Oct 07
     
    You can make solar panels with impure silicon, claims Roy Johnson. You just have to know how to isolate the undesirables. CaliSolar has come up with a way to make solar cells out of upgraded metallurgical silicon, according to Johnson, the company's CEO. Electrical grade silicon is 99.99999 plus percent pure, but it costs $150 to $250 a kilogram. Only around 70,000 tons are manufactured worldwide. By contrast, upgraded metallurgical silicon is only 99 percent or so and goes for $20 to $50 a kilo. Approximately 1.2 million tons get made a year. re. If CaliSolar can mass manufacture solar cells with a 14 percent efficiency these solar cells will cost far less than the 16 percent efficiency cells that are common on the market today.
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Green House Rotates To Face The Sun | Got2BeGreen - 0 views

got2begreen.com/-house-rotates-to-face-the-sun isolation homes renewables
shared by Sergio Ferreira on 04 Oct 07 - Cached
  • Rolf Disch, designed the house that collects solar energy by following the sun all day. The entire house rotates on a central axle. Triple-glazed glass is used on one side of the house to maintain warm temperatures and uses super-insulation to do the opposite for the hot summer months.
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Isle of Eigg - Eigg Electric - 1 views

www.isleofeigg.net/...eigg_electric.htm renewables wind hydropower
shared by Phil Slade on 10 Jul 10 - Cached
  • Phil Slade on 10 Jul 10
     
    "On 1st February 2008, the Isle of Eigg entered a new era, with the switching on of our island electrification project, which makes 24 hour power available for the first time to all residents and businesses on the island. Until then we were entirely dependent upon making our own power and the clattering of generators was always to be heard. Now, the generators are silent and suddenly we have leapt to the forefront of electricity generation using renewable energy resources. Our project is a world leader in the integration of multiple renewable energy sources into a grid system to supply an isolated and scattered small community. "
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L'île d'El Hierro (11000 habitants) autonome en énergie grâce au couple hydro... - 0 views

www.electron-economy.org/ompage-turbinage-52919199.html wind renewables electricity hydropower
shared by Phil Slade on 05 Sep 10 - Cached
  • Phil Slade on 05 Sep 10
     
    ""Wind and water: the perfect synergy" - With great ascents and high wind energy potential (Trade Winds), El Hierro proves to be a very suitable place for the implementation of a Wind-Hydro power station; it is also the first Wind-Hydro power station that will be providing close to 80% of the electricity demand of a totally isolated area. The major advantage of such a combination is that the system can overcome the usual problems of discontinuity and power fluctuation caused by the intermittent characteristic of the wind resource. When the energy produced by the wind farm exceeds the demand, the surplus is used to pump desalinated water in a reservoir situated 700 m above sea level."
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