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Torresol Energy - Gemasolar thermosolar plant

Torresol Energy - Gemasolar thermosolar plant
Gemasolar is the first commercial-scale plant in the world to apply central tower receiver and molten salt heat storage technology. The relevance of this plant lies in its technological uniqueness, since it opens up the way for new thermosolar electrical generation technology. Characteristics of Gemasolar: Rated electrical power: 19.9 MWNet electrical production expected: 110 GWh/year Solar field: 2,650 heliostats on 185 hectaresHeat storage system: the molten salt storage tank permits independent electrical generation for up to 15 hours without any solar feed. The prolongation of the plant's operating time in the absence of solar radiation and the improvement in efficiency of the use of the heat from the sun makes Gemasolar's output much higher than that which is delivered by other technologies in a facility with the same power. The notable increase in the plant's power efficiency guarantees electrical production for 6,500 hours a year, 1.5 to 3 times more than other renewable energies. Related:  centrales électriquesFree Power

Tour solaire (cheminée) Un article de Wikipédia, l'encyclopédie libre. Une tour solaire est une centrale à énergie renouvelable, construite de manière à canaliser l'air chauffé par le soleil afin d'actionner des turbines pour produire de l'électricité. L'ingénieur français Edgard Nazare (1914-1998) l'a conçue dans les années 1950 sous le terme « centrale aérothermique » ou « tour à vortex », et sous la forme d'une tour métallique (brevet de 1956 et 1964) confinant un cyclone artificiel par différence thermique dont la puissance était captée par des éoliennes encastrées en périphérie de la tour[1]. La première centrale a été construite par l'ingénieur allemand Jörg Schlaich en 1981. Schéma de principe De l'air est chauffé par effet de serre dans un vaste collecteur situé au niveau d'une plaine, et conduit par une cheminée qui débouche en altitude, permettant ainsi de tirer profit de la différence de température et de l'énergie potentielle de convection disponible. Un conduit à flanc de montagne

BuildItSolar: Solar energy projects for Do It Yourselfers to save money and reduce pollution Schools of Fish Inspire New Wind Farms that Will Increase Energy 10X Every now and then you come across an article and concept that makes you really smile and feel good on the inside. Typically they are "feel-good" stories that you see online or on the news, but today I came across this story about how scientists have designed new wind farms based on how schools of fish swim. So not only are we creating technology to help the environment but we are looking at nature for help. The new vertical-axis wind turbines are designed by Caltech and are currently being tested in the California desert. Here is a little statement from a Caltech engineer: Additionally here is a statement from the author of the study: Read more about the new advance over on the BBC

The Solar Project Coordinates: Solar Two Power Tower Project The Solar Project consists of the Solar One, Solar Two and Solar Tres solar thermal power plants based in the Mojave Desert, USA and Andalucía, Spain. Solar Two was demolished in 2009.[1] Solar One[edit] Solar One was a pilot solar-thermal project built in the Mojave Desert just east of Barstow, CA, USA. Solar One's method of collecting energy was based on concentrating the sun's energy onto a common focal point to produce heat to run a steam turbine generator. In the late 1970s, a competition was held by DoE to obtain the best heliostat design for the project. The project produced 10 MW of electricity using 1,818 mirrors, each 40 m² (430 ft²) with a total area of 72,650 m² (782,000 ft²). WikiMiniAtlas During times of high winds, blowing dust is sometimes illuminated by the reflected sunbeams to create an unusual atmospheric phenomenon in the vicinity of the power tower. Solar Two[edit] Solar Tres[edit] Land use[edit] In popular culture[edit]

Energie éolienne : définition, fonctionnement, avantages, problèmes, Définition et catégories L’énergie éolienne est l’énergie cinétique des masses d’air en mouvement autour du globe. La racine étymologique du terme « éolien » provient du nom du personnage mythologique Éole, connu en Grèce antique comme le maître des Vents. L’énergie éolienne est une forme indirecte de l’énergie solaire : les rayons solaires absorbés dans l’atmosphère entraînent des différences de température et de pression. De ce fait les masses d’air se mettent en mouvement et accumulent de l’énergie cinétique. Celle-ci peut être transformée et utilisée à plusieurs fins : la transformation en énergie mécanique : le vent est utilisé pour faire avancer un véhicule (voilier ou char à voile), pour pomper de l’eau (éoliennes de pompage pour irriguer ou abreuver le bétail) ou pour faire tourner la meule d’un moulin ; la production d'énergie électrique : l’éolienne est couplée à un générateur électrique pour fabriquer du courant continu ou alternatif. Enjeux par rapport à l'énergie En France

Wind Turbine Output Boosted 30% by Breakthrough Design Clean Power Published on April 29th, 2009 | by Timothy B. Hurst Passive structure design of “Wind Energizer” by Leviathan Energy reportedly increases wind turbine efficiency 30% in field tests. Technological advancements in wind energy efficiency have generally come incrementally and usually made via a process of increasingly large wind turbine blades. But that pattern of incremental improvements may be a thing of the past if Leviathan Energy has anything to say about it. The principle theory at work is that by placing passive objects around a wind farm it will change the circulation around a large wind turbine. “This is a disruptive technology,” Leviathan Energy CEO Dr. Farb is a bit of a modern day renaissance man. The Wind Energizer is a donut-shaped structure made from steel and plastic, but the exact dimensions of it depend on site-specific data, like the tower height, length of the blades, prevailing wind direction and intensity, etc. Images courtesy of Leviathan Energy Timothy B.

Solar Energy Job Growth Outpaces Other Industries California is home to the largest advanced energy industry in the country, according to the first-ever industry-wide survey released today by the Advanced Energy Economy Institute. At 431,800 jobs today, advanced energy is bigger by employment in California than the motion picture, television, and radio industries; mining and quarrying; semiconductors; and aerospace. Advanced energy jobs grew 5% in the past year – more than double the overall state job growth rate – and is on track to grow 17% in the coming year, to more than 500,000 workers, based on employer hiring plans. While California is widely recognized as a national leader in energy policy, jobs directly related to the industry have not been quantified until now. The full California Advanced Energy Survey is available at . Findings of the California Advanced Energy Employment Survey include: California is home to 43,700 businesses serving advanced energy markets.

Solar Updraft Tower A solar updraft tower is a large-scale solar power plant (30-200 MW) for regions of the earth that are rich in sunlight. Solar updraft towers generate electricity from solar radiation: the sun heats the air under a large translucent collector roof. Because of the density differential created between the warm air in the collector and the cooler ambient air, air flows radially into an open-ended tube arranged vertically at the centre of the collector roof and rises within it. The airflow drives turbines installed at the base of the tube and generates electrical energy. The essential components of a solar updraft tower are the collector, the turbine and the chimney. The collector in a solar updraft tower resembles a greenhouse: a covering made of glass, synthetic material or foil admits a maximal amount of solar radiation that heats the air beneath the collector. The turbine is propelled by the tube’s rising air that was warmed in the collector.

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