Solar storm as desert plan to power Europe falters. Solar ETC. How to Use Solar Energy at Night. Near Granada, Spain, more than 28,000 metric tons of salt is now coursing through pipes at the Andasol 1 power plant. That salt will be used to solve a pressing if obvious problem for solar power: What do you do when the sun is not shining and at night? The answer: store sunlight as heat energy for such a rainy day. Part of a so-called parabolic trough solar-thermal power plant, the salts will soon help the facility light up the night—literally. Because most salts only melt at high temperatures (table salt, for example, melts at around 1472 degrees Fahrenheit, or 800 degrees Celsius) and do not turn to vapor until they get considerably hotter—they can be used to store a lot of the sun's energy as heat.
Simply use the sunlight to heat up the salts and put those molten salts in proximity to water via a heat exchanger. Hot steam can then be made to turn turbines without losing too much of the original absorbed solar energy. "There's a term called round-trip efficiency. CPV_Environmental Report_07-09-11.pdf (application/pdf Object) Photovoltaics. Photovoltaic SUDI shade is an autonomous and mobile station in France that provides energy for electric vehicles using solar energy. Photovoltaics (PV) is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels composed of a number of solar cells containing a photovoltaic material. Mainstream materials presently used for photovoltaics include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, and copper indium gallium selenide/sulfide.
Due to the increased demand for renewable energy sources, the manufacturing of solar cells and photovoltaic arrays has advanced considerably in recent years. Solar photovoltaics is a sustainable energy source.[1] In 2013, its fast-growing capacity increased by 36% to a running total of 136 GW, worldwide. Solar cells[edit] Current developments[edit] Economics[edit] Insolation. US annual average solar energy received by a latitude tilt photovoltaic cell (modeled) Absorption and reflection[edit] The object or surface that solar radiation strikes may be a planet, a terrestrial object inside the atmosphere of a planet, or an object exposed to solar rays outside of an atmosphere, such as spacecraft. Some of the radiation will be absorbed and the remainder reflected. Usually the absorbed solar radiation is converted to thermal energy, causing an increase in the object's temperature.
Manmade or natural systems, however, may convert a portion of the absorbed radiation into another form, as in the case of photovoltaic cells or plants. Projection effect[edit] The insolation into a surface is largest when the surface directly faces the Sun. Figure 2 One sunbeam one mile wide shines on the ground at a 90° angle, and another at a 30° angle. This 'projection effect' is the main reason why the polar regions are much colder than equatorial regions on Earth. And or See also[edit] EU PVSEC Proceedings - PV vs CPV and CSP: A Comparative Analysis of Technologies and Cost Roadmaps. Are Solar Thermal Power Plants Doomed? Solar thermal power plants--which produce power from the heat of the sun--remain one of our favorite renewable energy technologies, but it might be in serious trouble.
And this time the culprit is not cheap natural gas, the Koch Brothers, or the desert tortoise advocates. This time, the adversary is the other half of the solar family. Photovoltaic panels have plummeted in price over the last few years while companies such as First Solar and SunPower have devised strategies for building large-scale power plants with technology that in the past might have ended up on roofs or in small, ground-mounted projects. Companies with relatively new thermal concepts like power towers argue that they can undercut PV projects. The solar thermal, or concentrating solar power (CSP) industry began to flourish in the late 1980s and early '90s in California with the construction of 354 megawatts of parabolic trough plants in the Mojave Desert. Then the 2008 financial crisis hit. A bleak outlook? Conclusion. Solar based large scale power plants: what is the best option? - Bensebaa - 2010 - Progress in Photovoltaics: Research and Applications.
The Market for Concentrated Solar Power is Hot and Getting Hotter. BOSTON--(BUSINESS WIRE)--Despite competitive photovoltaic prices and lingering environmental and financing concerns, concentrating solar power (CSP) technologies are poised for gigawatt-scale adoption in 2011; and future growth will remain healthy as the generation stack increasingly incorporates CSP plants in excess of 100 MW. However, in order to land their share of this emerging market, utilities and developers alike will need a clear grasp of the economic and performance factors driving adoption of CSP’s four main technology contenders, according to a new report from Lux Research. “Though trough technologies have been dominant to date, we expect power tower solutions to gain increasing prominence as the technology is proven, because their integration with thermal storage technologies smashes through the fundamental constraint that has held solar back to date: intermittency.”
Among the report’s key findings: Dish Stirling offers the lowest capital expenditures. About Lux Research. PV_vs_CSP.pdf (application/pdf Object) The Rise of Concentrating Solar Thermal Power. Untitled. Portail Algérien des ÉNERGIES RENOUVELABLES. Electric power consumption (kWh per capita) in Algeria. Concentrated solar power. Concentrated solar power (also called concentrating solar power, concentrated solar thermal, and CSP) systems use mirrors or lenses to concentrate a large area of sunlight, or solar thermal energy, onto a small area. Electrical power is produced when the concentrated light is converted to heat, which drives a heat engine (usually a steam turbine) connected to an electrical power generator or powers a thermochemical reaction (experimental as of 2013).[1][2][3] CSP is being widely commercialized and the CSP market has seen about 740 MW of generating capacity added between 2007 and the end of 2010.
More than half of this (about 478 MW) was installed during 2010, bringing the global total to 1095 MW. CSP growth is expected to continue at a fast pace. As of January 2014, Spain had a total capacity of 2,204 MW making this country the world leader in CSP. Interest is also notable in North Africa and the Middle East, as well as India and China. History[edit] Current technology[edit] . With and. Algeria plans to invest in silicon. Silicon nanorods Youssef Yousfi, the Algerian Minister of Energy and Mines, has announced that the state-owned electricity and gas company Sonelgaz is preparing to invest €250 million in silicon exploration. The Algerian company hopes to start the production of silicon by 2013. Silicon is the main component of microchips and other semiconductors, but Yousfi says the quarter-billion € investment was intended to produce solar poles. The state-owned company is also planning to satisfy 40% of local electricity demands through 12 megawatts of solar energy by 2030.
Sonelgaz’s main goal is to reposition itself as oil and gas reserves decline, and to possibly start exporting electricity to Europe. Algeria has its own solar electricity project separate from Desertec, an ambitious project aiming to provide electricity to Europe through renewable sources such and wind and solar power stations in the Sahara Desert.
Worldwide production of silicon topped 6.3 million metric tons. Jahd Khalil. A brief history of the origin of Sahar@Green vision (1928) - DESERTEC. A brief History of the origin of Modern Optics, Solar Technology, and Sahar@Green vision : two Genius (Abu Ali Hasan Ibn Al-Haitham 965-1040, and Hassan Kamel Al-Sabbah 1895-1935) Abu Ali Hasan Ibn Al-Haitham is the Father of Modern Optics. Mr Hassan Kamel Al-Sabbah meets in 1928 the Prince Chakib Erslan in USA. They study together the possibility to enable his inventions (Solar Power) into the deserts of Arabian Countries. Then the Prince Chakib Erslan contacts all Arabian Kings and Princes to enable this project. 80 years later, the project of Mr Hassan Kamel Al-Sabbah is foreshadowing all today's concepts like DESERTEC, Mediterranean Solar Plan, and MedGrid ...
Hassan Kamel Al-Sabbah, invented and tested the original solar cell in 1930. By Discovery Channel Magazine.com Hundreds of years before Galileo, Newton and many other well- known western Scientists, an Iraqi theologian was working out exactly how light works. His contribution to mathematics and physics was extensive. Mr. Mr. SaharaGreenTV's Channel DESERTEC - Liste des derniers articles parus sur desertec-mediterranee.over-blog.com. Sustainability Intelligence - Sustainability Research The earlier goal of SaharaGreen, was to re-green the deserts by using solar energy. Since 1928 volunteers tries to make this dream possible : to use Solar Energy to transform the deserts into paradise. Today, this think tank became a worldwide organization in the fields of Sustainability Intelligence & Sustainability Research, and helps companies across the globe to identify and capitalize on green business opportunities. The objectives of SaharaGreen are to share Scientific & Technologic & Market informations in the fields of Sustainability (Sustainable Development, Green Economy, CleanTechs ...) and to promote Sustainable initiatives, like DESERTEC, MedGrid, Mediterranean Solar Plan, Sahara Green Vision.
SaharaGreen helps also companies to hire experts in Sustainability. To become a partner of Sahara Green : Click Here Become a member of GREENLY : the worldwide experts community in sustainability Click here => GREENLY. L'Algérie et DESERTEC - DESERTEC. Après une polémique qui a duré plusieurs mois sur l’adhésion ou non de l’Algérie au projet Desertec, une visite du président de la République,Abdelaziz Bouteflika, en Allemagne a donné lieu à des contacts entre les promoteurs de Desertec et des responsables algériens qui faisaient partie de la délégation officielle, notamment le ministre de l’Energie et des Mines, Youcef Yousfi.
Lors de la visite au mois de décembre 2010 en Allemagne, l’AFP avait rapporté que «le président algérien, Abdelaziz Bouteflika, et la chancelière allemande, Angela Merkel, ont convenu de la mise en place d’une commission économique mixte, notamment pour développer la coopération dans le domaine des énergies renouvelables». Il avait réitéré la position du gouvernement qui est de travailler avec tous ceux qui apportent quelque chose au programme national de développement des énergies renouvelables comme le solaire. M. -Des entretiens ont eu lieu récemment à Alger entre Sonelgaz et le PDG de Desertec. Projet Desertec. Un article de Wikipédia, l'encyclopédie libre. Logo de la fondation DESERTEC Logo de l'initiative industrielle Dii Desertec est le nom d'un concept éco-énergétique de grande envergure qui prévoit l'exploitation du potentiel énergétique des déserts afin d'approvisionner durablement toutes les régions du monde en électricité verte[1].
Le concept Desertec fut développé à l’origine par la « Coopération transméditerranéenne pour l'énergie renouvelable » (TREC pour Trans-Mediterranean Renewable Energy Cooperation). Desertec vise à la fois à répondre en grande partie aux besoins des pays producteurs d'Afrique du Nord et du Moyen-Orient, et à couvrir jusqu'à presque 20 % de la demande d'électricité en Europe[2]. Cartographie sommaire permettant de visualiser la structure et les nœuds du réseau électrique du projet Desertec. Le concept Desertec repose sur le fait que chaque km2 de désert reçoit annuellement « une énergie solaire équivalent à 1,5 million de barils de pétrole. Pour la production :