Solar storm as desert plan to power Europe falters
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.
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.
Insolation US annual average solar energy received by a latitude tilt photovoltaic cell (modeled) Absorption and reflection 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.
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.
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.”
PV_vs_CSP.pdf (application/pdf Object)
The Rise of Concentrating Solar Thermal Power
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). 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.
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.
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.
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.
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». L'Algérie et DESERTEC - DESERTEC
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