Une tour solaire de 750 mètres en Espagne - Xelopolis.
Une tour solaire de 750 mètres en Espagne - Xelopolis.
19/04/2009 dans Energie, Solaire, Tour | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
Viessmann a repris l’entreprise allemande ESS, spécialisée dans la cogénération (PCCE*), et élargit ainsi son assortiment de systèmes à grande puissance. Grâce aux précédentes reprises internationales dans le marché porteur de la biomasse et de la biométhanisation, la boucle est ainsi bouclée. Déjà fin 2006, début 2007, Viessmann étendait sa gamme dans le domaine de la biomasse et des systèmes de grande puissance par le biais de la reprise de Mawera et Köb, acteurs spécialisés dans le boispour les biomasses solides. Octobre 2007 vit l’acquisition de BIOFerm, active dans la transformation des déchets biologiques en biogaz via fermentation sèche. Récemment,Viessmann a aussi repris le producteur suisse de pompes à chaleur KWT.
Avec ESS, la boucle est bouclée et Viessmann dispose désormais d’un expert fiable en cogénération. Dès le 1er janvier 2009, Viessmann Belgium lancera le nouveau concept de service PCCE, intégré dans une business unit séparée. Avec sa gamme de produits – Vitobloc, jusque 400 kW (électricité) –, le spécialiste du chauffage s’adresse en premier lieu aux entreprises affichant une demande de chaleur suffisamment grande et constante.
Outre l’économie considérable de consommation d’énergie primaire (jusque 25% !) et une forte réduction des émissions de CO2, les installations PCCE de Viessmann présentent encore de nombreux autres atouts. Elles sont ainsi extrêmement compactes, flexibles (solution temporaire, mobile, etc.), modulables, les moteurs sont silencieux, etc.
02/03/2009 dans Energie | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
The European Renewable Energy Research Centres Agency was established as a European Economic Interest Grouping in 1991 to strengthen and rationalise the European research, demonstration and development efforts in all renewable energy technologies. As an independent member-based association, it incorporates 43 prominent research groups from all over Europe. EUREC members' research fields include solar buildings, wind, photovoltaics, biomass, small hydro, solar thermal power stations, ocean energy, solar chemistry and solar materials, hybrid systems, developing countries and integration of renewable energy in the energy infrastructure.
06/02/2009 dans Energie | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
The Building AdVent Project Mankind’s contribution to climate change through gross consumption of energy and the associated CO2 emissions that accompany this, is a well established phenomenon. Energy use by ventilation losses and fans accounts for almost 10% of energy use in the EU. About 1/3 of this could be saved through improved ventilation systems. The Building AdVent project will disseminate information to designers on 18 non-domestic buildings that are examples of successfully implemented low energy ventilation systems. The buildings are spread throughout the various climates of Europe. This project will greatly contribute to the use of low energy systems by disseminating information on actual buildings that incorporate low energy techniques, thereby helping to overcome a general lack of knowledge and confidence amongst engineers and architects. This project has been developed through discussions and a contractual agreement between the partners involved. It has been funded by the Intelligent Energy Executive Agency (IEEA), which was created by the European Commission to implement the Intelligent Energy Europe (IEE) programme.
06/02/2009 dans Energie | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
PROMOTION
OF COOL ROOFS IN THE EU
The aim of
the proposed action is to create and implement an Action Plan for the cool
roofs in EU. The specific objectives are: to support policy development by
transferring experience and improving understanding of the actual and potential
contributions by cool roofs to heating and cooling consumption in the EU; to remove market barriers and simplify the
procedures for cool roofs integration in construction and building’s stock; to
change the behaviour of decision-makers and stakeholders so to improve
acceptability of the cool roofs; to disseminate and promote the development of
innovative legislation, codes, permits and standards, including application
procedures, construction and planning permits concerning cool roofs. The work
will be developed in four axes, technical, market, policy and end-users.
06/02/2009 dans Energie | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
Royal Boon Edam - Boon Edam introduces the world’s first energy generating revolving door.
Boon Edam introduces the world’s first energy generating revolving door Royal Boon Edam Group Holding has proved, once again, to be the world leader in entrance technology with their latest feature in revolving doors. Boon Edam developed an energy generating revolving door for the Driebergen-Zeist railway station in The Netherlands, which not only saves energy but also generates energy with every person passing through the door.
27/01/2009 dans Energie | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
Solyndra - Produits - Systèmes PV optimisés
Solyndra conçoit, fabrique et vend des systèmes (PV) photovoltaïques solaires composés de panneaux et d'un matériel de fixation pour de grands toits commerciaux, à faible pente. Le système de Solyndra a été conçu pour optimiser la performance PV sur les toits commerciaux en convertissant une grande partie de la lumière du soleil qui frappe toute la surface du toit en électricité. Les panneaux de Solyndra utilisent des modules cylindriques qui capturent la lumière du soleil sur une surface photovoltaïque de 360 degrés capable de convertir la lumière du soleil directe, diffuse et réfléchie en électricité.
Comme montré dans les illustrations ci-dessus, les panneaux de Solyndra fonctionnent de manière optimale lorsqu’ils sont montés horizontalement et serrés les uns aux autres, couvrant de ce fait une plus grande surface de toit et produisant plus d’électricité par toit par an que l'installation d'un panneau conventionnel. Le résultat est plus d'électricité solaire par toit par an.
27/01/2009 dans Energie, Solaire | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
Technology Review: A Design for Cheaper Wind Power .
FloDesign Wind Turbine, a spin-off from the aerospace company FloDesign based in Wilbraham, MA, has developed a wind turbine that could generate electricity at half the cost of conventional turbines. The company recently raised $6 million in its first round of venture financing and has announced partnerships with wind-farm developers. The company's design, which draws on technology developed for jet engines, circumvents a fundamental limit to conventional wind turbines. Typically, as wind approaches a turbine, almost half of the air is forced around the blades rather than through them, and the energy in that deflected wind is lost. At best, traditional wind turbines capture only 59.3 percent of the energy in wind, a value called the Betz limit. FloDesign surrounds its wind-turbine blades with a shroud that directs air through the blades and speeds it up, which increases power production. The new design generates as much power as a conventional wind turbine with blades twice as big in diameter. The smaller blade size and other factors allow the new turbines to be packed closer together than conventional turbines, increasing the amount of power that can be generated per acre of land.
27/01/2009 dans Energie, Eolien | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
To make wind power useful when the wind isn’t blowing, power companies need utility-scale energy storage—but batteries that big aren’t yet practical. One option is to use wind power to compress air for storage in tanks or caverns underground, then use the air to run a generator. That’s the goal of the Iowa Stored Energy Park in Dallas Center, Iowa, where site testing of recently drilled wells will be completed next year. The technology is also part of the design for the world’s largest wind farm, a 3000-megawatt project planned for Briscoe County in Texas.
27/01/2009 dans Energie, Eolien | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |
Inhabitat » WORLD’S FIRST HYDROGEN CITY.
H2PIA really does look like an otherworldly utopia, but the designers make a point of having us know that this is not a fantasy. No, we can have a fully sustainable lifestyle, free of addiction to oil, coal and gas, well before the widely projected date of 2050. If all goes well, H2PIA will begin contruction in 2007.
Here’s how it works: “The renewable energy comes from solar or wind power and is used to split H2O ? ordinary water ? into H2 and O2 ? hydrogen and oxygen. The oxygen is vented into the atmosphere, which already contains about 20 percent O2. The hydrogen is used in fuel cells that can produce energy, for instance in the form of electricity and heat. In the fuel cell, the energy is created by silent electrochemical processes with no pollution. The only product left over when the hydrogen is used up, is pure water. During periods with low energy demand, we can store the hydrogene".
- Le site H2PIA
La présentation du projet : Téléchargement H2PIA <="<" li="li">
10/01/2009 dans Energie, Prostective, Urbanisme | Lien permanent | Commentaires (0) | TrackBack (0)
Reblog
(0)
|
| |