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Colin Bennett

LED Desk Lamps: A Review (2008 Update) : MetaEfficient - 0 views

  • LEDs desk lamps are also efficient, because they do not get hot, so there’s no risk of burns, or excess heat in the summer. Because LED light is so focused, a 100 lumen LED desk lamp will seem quite bright. Let’s take a survey of what’s currently available:
Colin Bennett

EU industry unites to promote energy-saving lamps | Environment | Reuters - 0 views

  • BRUSSELS (Reuters) - Europe's lamp and electricity producers joined forces with the retail sector on Monday to encourage consumers to buy more energy-efficient light bulbs and help the European Union in its fight against climate change. An agreement signed by three pan-European industry associations aims to promote and support the distribution of Compact Fluorescent Lamps (CFLs) as an alternative to conventional incandescent lamps -- so consuming far less energy.
Colin Bennett

Solar Lamps Transform an Indian Village - 2 views

  • Actually a modified solar lamp has changed their lives. This solar lamp has a tiny plug point at the base for recharging mobiles.
Jack Travis

DC Fluorescent Lamp Electronic Ballast - 1 views

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    Check out the compact, durable and low power DC electronic fluorescent lamp ballast....
Hans De Keulenaer

eceee: "B Class lamps could be introduced much sooner", eceee report shows - 0 views

  • There is no reason to wait until 2016 for the EuP eco-design requirements to phase out the modestly efficient C class halogen “look-alikes” that are expected to replace today’s clear incandescent lamps. These should be replaced by more efficient B Class lamps sooner than 2016, the European Council for an Energy Efficient Economy claims, based on a new report commissioned by the organisation.
Glycon Garcia

Taxa sobre Lâmpadas de Baixa Eficiência Energética - 0 views

  • Para compensar os custos ambientais decorrentes da utilização de lâmpadas de baixa eficiência energética, o Governo introduziu uma taxa através do Decreto-Lei n.º 108/2007, de 12 de Abril (abre uma nova janela).
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    Brazilian Government introduces new taxes for inefficient lamps.
Hans De Keulenaer

News Story | Virginia Tech News | Virginia Tech - 0 views

  • While many people want to know when the lamp will be available, many others point out that it won't actually work. The criticism is that a great deal of weight – about two tons -- would be required and current LEDs are not sufficiently efficient. Designer Clay Mouton acknowledges that the current state of the art isn't sufficient to actually build the lamp. The news release should have said: “based on future developments in LED technology."
davidchapman

Technology Review: Gadgets to Spur Energy Conservation - 0 views

  • Can glorified glow lamps stop blackouts and slash energy costs? Manhattan-based ConsumerPowerline thinks so. This winter, about a thousand participants in the company's energy-conservation program will receive small plug-in boxes that glow red when power demand peaks, urging them to turn off space heaters, defer dishwasher runs, or otherwise save electricity.
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    Can glorified glow lamps stop blackouts and slash energy costs? Manhattan-based ConsumerPowerline thinks so. This winter, about a thousand participants in the company's energy-conservation program will receive small plug-in boxes that glow red when power demand peaks, urging them to turn off space heaters, defer dishwasher runs, or otherwise save electricity.
Sergio Ferreira

Chinese light bulbs and sustainability « 3E Intelligence - 0 views

  • the European Commission decided to retain its duties on energy-efficient light bulbs imported from China for one more year
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    banning efficient lamps to save Europeans companies. but how efficient were the lamps anyway?
Hans De Keulenaer

BSRIA Press & Information > How many politicians does it take to change a lightbulb? - 0 views

  • The limited market penetration suggests that ignoring the differences and claiming universal compatibility will lead to consumer rejection. Politicians should develop the power of persuasion rather than the imposition of regulation.
  • In new dwellings domestic lighting suffers from inadequate installation. The formula is based upon the minimum number of lighting points arranged with the shortest cable runs. Consequently, lighting is often wrongly positioned and poorly controlled.
  • For some rooms, where there are fixed working positions such as kitchen and bathrooms, permanent lighting can be installed. For other rooms the lighting needs are determined by the layout of furnishings particular to a set of occupants. A more flexible arrangement is needed if the lighting is to both effective and efficient.
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  • Finally, by removing the GLS cash-cow from tungsten filament manufacturing may cause other lamps to cease production, as it would no longer be viable to manufacture materials such as glass bulbs, drawn tungsten wire and even bayonet lamp-caps.
Colin Bennett

Energy Efficient LED Streetlight Demonstration in San Jose To Use Intelligent Controls ... - 0 views

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    San Jose will convert 115 lights to energy-efficient, programmable LED lamps by June 2009, and is seeking funds from the stimulus package to install additional lights and control systems. The plan is to change all of the city's more than 62,000 streetlights to a new system by 2022.
Phil Slade

Mike Thompson - Latro Lamp - 2 views

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    "Latro (latin for thief) incorporates the natural energy potential of algae and the functionality of a hanging lamp into its design."
Colin Bennett

Incandescent lamps going out all over Europe - 0 views

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    But Peter Löscher, Siemens' chief executive, said he was upbeat about Osram's growth expectations in the light of Monday's news. "The decision from the European Union will accelerate growth in our green product line," he told the Financial Times.
Colin Bennett

Could sea power solve the energy crisis? - Telegraph - 0 views

  • The French inventor Georges Claude is largely forgotten today; if he is remembered at all, it is as the creator of the neon lamp. Yet one of his projects from the 1920s could resolve the global energy crisis - by harnessing the power of the oceans.
frank smith

Light-emitting diode - Wikipedia, the free encyclopedia - 0 views

  • The LED is based on the semiconductor diode. When a diode is forward biased (switched on), electrons are able to recombine with holes within the device, releasing energy in the form of photons.
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    A light-emitting diode (LED) (pronounced /ˌɛl.iːˈdiː/[1]) is a semiconductor light source. LEDs are used as indicator lamps in many devices, and are increasingly used for lighting. Introduced as a practical electronic component in 1962,[2] early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and infrared wavelengths, with very high brightness.
David Think

Projects for a better world: Eco Biolamp - 6 views

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    This Biolamp is designed in order to convert the CO2 into fuel that can generate the street lamp in entire city road
Ako Z°om

les panneaux solaire - Le 20 heures - Les journaux télévisés de France 2 - FO... - 0 views

  • Je ne sais pas si tu te rends compte mais un lingot permet de faire 4 panneaux solaires de 1m² qui produisent 4x130w et qui ont une durée de vie de 20ans. si tu n'utilises que les chutes de lingots, il faut 6 lingots pour faire 1 panneaux qui produira 130w avec une durée de vie de 20ans (pour faire un panneaux en poly silicium donc avec les chutes des lingots, il faut encore faire fondre les chutes 1400°C pendant quelques heures). Imagine maintenant l'énergie qu'il faut pour faire 4 panneaux solaire (9x24heures à 1200°C), l'énergie qu'il faut est beaucoup plus importante que ce que 4 panneaux de 130w pendant 20ans peuvent produire (et là je parle que de l'énergie). En gros un panneau solaire de 130w ne rembourse pas l'énergie qu'il a eu besoin pour être fabriqué  c'est bien le problème des média qui ne parlent que des bonnes choses de ces panneaux et qui arrive à faire croire à des personnes comme toi que c'est écologique.  
  • la plupart des panneaux solaires en silicium proviennent des déchets de l'industrie microélectronique
  • fabrique les panneaux solaires, les lampes à DEL, les processeurs,.... je vais parler du monde du silicium. La base de ces panneaux solaire est donc le cristal silicium pur, pour obtenir ce silicium on met du sable (SiO2) dans un creusé et on le fait fondre à 1400°C. Une fois le silicium  fondu et les molécules d'oxygène évacué, on plonge un germe de cristal de silicium dans le creusé que l'on tire tout doucement (1mm/15min) afin d'obtenir un cristal du silicium.   Il faut environs 24 heures pour obtenir un lingot de silicium et pendant ce temps le creusé doit resté à 1400°C. S’en suit une purification du lingot, on recuit le lingot 5 à 6 fois à 1000°C pendant à chaque fois 24 heures cela fait beaucoup beaucoup d'énergie et donc beaucoup beaucoup de CO2.   Une fois le lingot pur obtenu, il faut le découper et le polir (là on utilise beaucoup d'eau il ne faut pas que le silicium chauffe). S’en suit alors la réalisation du système, là il s’agit d'une répétition de dépôt de résine toxique, cuisson, attaque chimique (acide fluoridrique), dépôt chimique (silane SiH4 et Tétrafluorosilane SiF4 qui produit des gaz fluoré très toxique avec une duré de vie de 150ans) généralement l'opération est répété 40 fois environ. Après les systèmes obtenu il faut les découpés, mettre dans des boitiers,...  Bien sur, je ne parle pas du transport car la plupart des systèmes sont fabriqué en Asie, il y a aussi des à côté comme les salles blanches,.... les ordinateur qui tourne 24 heures sur 24 7jours /7.  Il faut 1 lingot pour fait 4 panneaux de 1 m²
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  • produire 1m² de panneaux solaire engendre plus de CO2 que se qu’il permet d’évité de rejeter et donc il n’a pas d’intérêt dans la lute contre le changement climatique. Par contre c’est une bonne alternative pour la fin du pétrole (si on n’a pas peur de la pollution)
  • la fabrication d'un panneau produit plus de CO2 que se qu'il évite de rejeter le temps de sa durée de vie
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    in fr ... but perhaps you know that photovoltaïc panels are polluting massively .. just to build them !!! and have not enough power to reimburse their fabrication back !!! and if there is no more oil to build them .. what's up ?
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    une vérité sur les panneaux solaires ... à suivre de près à moins que les panneaux photovoltaïques soient condamnés et obsolètes dès ce jour ...
Hans De Keulenaer

WorldChanging: Heat pumps: The Future has Hot Showers. - 0 views

  • Alex recently posted a charming video snippet that he described as "solutions porn" - the video shows a man in a dusty, un-named country installing a photovoltaic panel on his roof and enjoying a lengthy hot shower when the evening sets in. His family are in the next room boiling water and doing homework under a lamp. The 90 second spot took first place in the 2007 Commonwealth Vision Awards.
Colin Bennett

BSRIA looks into the impact of banning the traditional light bulb in favour of CFLs - 0 views

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    So far there are a lot of questions but few answers. It is worth recalling that the filament lamp went through about 50 years of development before reaching maturity. Although the perception is of more rapid progress today, we may have to wait until 2020 before CFLs reach their prime.
Jack Travis

Renewable Energy Resources - 6 views

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    There are many energy conservation tips taken to have the green power in your surrounding region. Also the charges for the fossil fuels are increasing a lot and creates harm for the environment too.
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