Extractions: Wind power is now competitive, on price, with many conventional energy technologies. Energy is concentrated into a single rotating shaft. The power of the shaft can be used in many ways: for example, large modern turbines convert it into electricity. Wind - a form of solar energy - is a low-density source of power. The quantity of energy developed is the product of the density of the air and the cube of the wind speed.
Solar Energy, Solar Power, Solar Heating, And Photovoltaics The trigger for the surge in demand in the German photovoltaic market is the new feedin regulation, which provides higher pay-back rates for solar energy. http://www.solarserver.de/index-e.html
Extractions: EuroSun2004: Top solar researchers meet in Freiburg, Germany They cool buildings with hot air from solar collectors. They generate electricity from silicon films that are thinner than a hair. They invent novel materials to store solar energy more efficiently. Solar researchers develop new products and procedures in their laboratories, test them in demonstration systems and co-operate with industry to make them ready for practical application. From the 20th to 23rd June, 2004, scientists and engineers from all over the world will present their most recent research results in more than 400 lectures and posters at the EuroSun2004 conference in Freiburg, Germany. The conference organisers especially aim to offer young researchers the opportunity to communicate the results of their work. "In addition to recognised experts, we are also expecting many young scientists from universities and research institutes", said Dr Volker Wittwer, Scientific President of EuroSun2004. A workshop on new types of concentrators and micro-structured optical surfaces for solar energy systems is directed specifically to recent graduates. Other workshops deal with optimised selection of materials for solar collectors and thermal storage units, and current developments in solar-thermal power station technology.
Extractions: Banner Advertising Bulletin Board Events Solar Magazine ... Home Photovoltaics: Solar Electricity and Solar Cells in Theory and Practice The word Photovoltaic is a combination of the Greek word for Light and the name of the physicist Allesandro Volta. It identifies the direct conversion of sunlight into energy by means of solar cells. The conversion process is based on the photoelectric effect discovered by Alexander Bequerel in 1839. The photoelectric effect describes the release of positive and negative charge carriers in a solid state when light strikes its surface. How Does a Solar Cell Work? Over 95% of all the solar cells produced worldwide are composed of the semiconductor material Silicon (Si). As the second most abundant element in earth`s crust, silicon has the advantage, of being available in sufficient quantities, and additionally processing the material does not burden the environment. To produce a solar cell, the semiconductor is contaminated or "doped". "Doping" is the intentional introduction of chemical elements, with which one can obtain a surplus of either positive charge carriers (p-conducting semiconductor layer) or negative charge carriers (n-conducting semiconductor layer) from the semiconductor material. If two differently contaminated semiconductor layers are combined, then a so-called p-n-junction results on the boundary of the layers.
Solar Cars - Photovoltics And Sun Energy solar cells or PV cells rely on the photovoltaic effect to absorb the energy of the sun and cause current to flow between two oppositely charge layers. http://inventors.about.com/library/inventors/blsolarcar.htm
Extractions: zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Homework Help Inventors Famous Inventions ... Industrial Revolution zau(256,152,145,'gob','http://z.about.com/5/ad/go.htm?gs='+gs,''); Famous Inventions Famous Inventors Black Inventors Women Inventors ... Help zau(256,138,125,'el','http://z.about.com/0/ip/417/0.htm','');w(xb+xb); Subscribe to the About Inventors newsletter. Search Inventors Solar Cars - Solar Energy and Photovoltics During the 1990s, regulations requiring an approach to "zero emissions" from vehicles increased interest in new battery technology. Battery systems that offer higher energy density became the subject of joint research by federal and auto industry scientists. Solar cars were first built by universities and manufacturers. The sun energy collector areas proved to be too large for consumer cars, however that is changing. Development continues on solar cell design and car power supply requirements such as heater or air-conditioning fans. Useful references related to building solar cars.
About Photovoltaics energy from the Sun Bulk electrical power generation using the available solar energy of a kilowatt per square meter will occur when photovoltaic cells decline http://www.montanagreenpower.com/solar/photovoltaic.html
Extractions: Most commonly known as "solar cells," PV systems are already an important part of our lives. The simplest systems power many of the small calculators and wrist watches we use every day. More complicated systems provide electricity for pumping water, powering communications equipment, and even lighting our homes and running our appliances. In a surprising number of cases, PV power is the cheapest form of electricity for performing these tasks. Links Montana Residential Solar Electric Demonstration Project Bulk electrical power generation using the available solar energy of a kilowatt per square meter will occur when photovoltaic cells decline in price below 10 cents per kilowatt-hour. The first practical solar cell was developed at Bell Laboratories [1] in 1954. With the advent of the space program, photovoltaic cells made from semiconductor-grade silicon quickly became the power source of choice for use on satellites. The system were very reliable, and cost was of little concern. In the early 1970s, the disruption of oil supplies to the industrialized world led to serious consideration of photovoltaics as a terrestrial power source. This application focused research attention on improving performance, lowering costs and increasing reliability. These three issues remain important today even though researchers have made extraordinary progress over the years. This article details that progress.
Pacific Energy Company's Photovoltaic Energy Page Pacific energy Companys photovoltaic energy Page Alter Your energy with solar energy Equipment and Wood stoves,Fireplaces From Pacific energy Company. http://www.alteryourenergy.com/solpv.html
Extractions: Welcome Home Power Designer We would like to introduce you to a sampling of our full line of Photovoltaic and remote power systems. From simple battery chargers to whole house power systems. Our staff is available to help you design a system that meets your needs for today and tomorrow. Recent changes in both technology and utility regulation is now providing pure sine wave inverters for every day use. Are you a California Pacific Gas and Electric Co. customer? Take advantage of the state of California programs to help you pay for your equipment! The Emerging Renewables Program from the California Energy Commission provides rebates to consumers who install qualifying renewable energy systems. Your financial incentive may vary according to the system size, technology and installation method. You can also apply for the Solar Energy System Tax Credit, it can be used by taxpayers against their net tax in an amount equal to the lesser of 15 percent of the cost paid for the purchase and installation of a solar. Click Here to learn how "
Photovoltaic: Using Photovoltaic Energy In Cottages And Lodges A photovoltaic solar module can cost about $10.00 CDN per watt peak. For example, a solar energy system requiring 100 peak watts costs between $1,500 and $2,500 http://www.canren.gc.ca/tech_appl/index.asp?CaID=5&PgID=264
Extractions: Other Photovoltaics Related Home Pages: ACRE - Australian Cooperative Research Centre For Renewable Energy Ltd AG-Solar NRW - North Rhine-Westphalian Solar activities Air Therm Solartechnik - photovoltaic components and systems Alternative Energy Products - Psi-Niax Ltd, New Zealand ANZSES Australian and New Zealand Solar Energy Society - Home Page Aurora - Educational Web Site on Renewables Bureau of Meteorology - Australian daily global solar exposure estimates Bomin Solar - Swiss/German company BP Solar - Australia's largest photovoltaic manufacturer (Also uses UNSW laser buried grid technology) CADDET - Centre for the Analysis and Dissemination of Demonstrated Energy Technologies (Australian Network) Canadian Renewable Energy and Sustainable Energy CANMET Energy Diversification Research Laboratory Centre for Alternative Technology Clean Energy - a worldwide directory Department of Energy and Semiconductor Research at the University of Oldenburg The Department of Energy's Energy Efficiency and Renewable Energy Network - EREN
Solar Energy Electricity can be produced directly from solar energy using photovoltaic devices or indirectly from steam generators using solar thermal collectors to heat a http://www.eia.doe.gov/kids/renewable/solar.html
Extractions: Solar Energy Energy from the Sun The sun has produced energy for billions of years. Solar energy is the solar radiation that reaches the earth. Solar energy can be converted directly or indirectly into other forms of energy, such as heat and electricity. The major drawbacks (problems, or issues to overcome) of solar energy are: (1) the intermittent and variable manner in which it arrives at the earth's surface and, (2) the large area required to collect it at a useful rate. Solar energy is used for heating water for domestic use, space heating of buildings, drying agricultural products, and generating electrical energy. In the 1830s, the British astronomer John Herschel used a solar collector box to cook food during an expedition to Africa. Now, people are trying to use the sun's energy for lots of things. Electric utilities are are trying photovoltaics, a process by which solar energy is converted directly to electricity. Electricity can be produced directly from solar energy using photovoltaic devices or indirectly from steam generators using solar thermal collectors to heat a working fluid. There were 15 solar electric generating units operating in the US at the end of 2002, with more on the way. Most of these are in California, though Nevada, Arizona, Texas, and Virginia have them, too.
Solar Energy solar energy can also be used to meet our electricity requirements. Through solar photovoltaic (SPV) cells, solar radiation gets converted into DC electricity http://edugreen.teri.res.in/explore/renew/solar.htm
Extractions: Explor e Play and learn Network Surf Go back S olar energy India receives solar energy equivalent to over 5000 trillion kWh/year, which is far more than the total energy consumption of the country. S olar energy is the most readily available source of energy. It does not belong to anybody and is, therefore, free. It is also the most important of the non-conventional sources of energy because it is non-polluting and, therefore, helps in lessening the greenhouse effect. Solar energy has been used since prehistoric times, but in a most primitive manner. Before 1970, some research and development was carried out in a few countries to exploit solar energy more efficiently, but most of this work remained mainly academic. After the dramatic rise in oil prices in the 1970s, several countries began to formulate extensive research and development programmes to exploit solar energy. When we hang out our clothes to dry in the sun, we use the energy of the sun. In the same way, solar panels absorb the energy of the sun to provide heat for cooking and for heating water. Such systems are available in the market and are being used in homes and factories. India is one of the few countries with long days and plenty of sunshine, especially in the Thar desert region. This zone, having abundant solar energy available, is suitable for harnessing solar energy for a number of applications. In areas with similar intensity of solar radiation, solar energy could be easily harnessed. Solar thermal energy is being used in India for heating water for both industrial and domestic purposes. A 140 MW integrated solar power plant is to be set up in Jodhpur but the initial expense incurred is still very high.
Extractions: The value of the award is easily demonstrated by the criteria used by the judges when making their decision. Assessments were made on the difficulty of the markets penetrated, the strategic approach that the company adopts towards exporting, and the skill levels of those involved in the export function. Dulas Ltd is a leading renewable energy company with 19 years experience in the industry at an international level. The company is based around a highly qualified and experienced multi-disciplinary team encompassing all aspects of renewable energy from policy, market stimulation and resource assessment right through to research, design, training, and the implementation of wind, solar, micro hydro and biomass projects. The flexible approach offered to customers is possible because of the separate departments within Dulas Ltd. For example the Environment department has over 10 years of experience in the assessment and impact prediction of renewable energy developments, the monitoring and evaluation of renewable energy resources and the formulation of energy policy at regional, national and international levels. The Environmental department is comprised of experienced energy policy specialists and environmental managers and has the support of Dulas Ltd multi-disciplinary engineering staff.
EUROPA - Energy - New And Renewable Energies - Photovoltaic Like wind power, photovoltaic energy can be proud of its national programs of gridconnected photovoltaic systems.The Led by its 100 000 solar Roofs Program http://europa.eu.int/comm/energy/res/sectors/photovoltaic_en.htm
Extractions: en document.write(''); document.write('English'); document.write(''); EUROPA European Commission Energy Contact ... Search on EUROPA Links Directorate-General for Energy and Transport Transport Trans-European Networks What's new? ... Links What's new ? Useful links Overview Renewable Energy Sectors ... Publications COMMISSION STAFF WORKING DOCUMENT The share of renewable energy in the EU - Country Profiles - Overview of Renewable Energy Sources in the Enlarged European Union (998 KB) COMMUNICATION FROM THE COMMISSION TO THE COUNCIL AND THE EUROPEAN PARLIAMENT The share of renewable energy in the EU
I D A E - LOW COST Photovoltaic Energy The current energy situation in Europe and in Italy reflects the growing attempts in Italy to create a reasonable market for solar photovoltaic technology have http://europa.eu.int/comm/energy/en/renewable/idae_site/deploy/prj078/prj078_1.h
Extractions: RE Partnership for Promotion LOW COST photovoltaic energy Background The current energy situation in Europe and in Italy reflects the growing dependence of the continent on oil and natural gas, with the resulting well-known environmental impacts, such as global warming, deteriorating air quality in medium/ large cities and the ever more frequent environmental disasters caused by oil tankers, etc. The results of recent attempts in Italy to create a reasonable market for solar photovoltaic technology have been disappointing, with only a slightly increase in the rate at which solar photovoltaic (SPV) panels and components (supplied by manufacturers in East Asia) have been installed. In Italy, the production of SPV panels has dropped by 20% in the past three years. The State aid granted both by the Central Administration and the European Commission in the form of support programmes has been distributed, in some cases, in a non-discriminatory way, and there has been no explicit focus on reducing the cost of manufacturing panels, although this is probably the most urgently needed measure. This is precisely the field of action of AISEF, a non-profit Italian association for the development of photovoltaic energy created in March 2003 with the aim of starting up a virtuous cycle of production and sale of SPV panels and plants at attractive prices through the creation of a leasing company. The most important part of the loan will be provided by voluntary funds with the stimulus of an effective advertising campaign. This fund will enhance research and development projects to obtain a more efficient production and therefore cheaper SPV cells and panels.
Extractions: Rural Energy Development Officer Solar photovoltaic (PV) systems have shown their potential in rural electrification projects around the world, especially concerning Solar Home Systems. With continuing price decreases of PV systems, other applications are becoming economically attractive and growing experience is gained with the use of PV in such areas as social and communal services, agriculture and other productive activities, which can have a significant impact on rural development. There is still a lack of information, however, on the potential and limitations of such PV applications. The main aim of this study is, therefore, to contribute to a better understanding of the potential impact and of the limitations of PV systems on sustainable agriculture and rural development (SARD), especially concerning income-generating activities. It is, in fact, of paramount importance to identify the potential contribution of PV to rural development in order to gain further financial and political commitment for PV projects and programmes and to design appropriate PV projects. One of the main lessons learnt through this study is that success of PV programmes is significantly enhanced when an integrated strategy is followed. Solar photovoltaic systems, through their flexibility in use, offer unique chances for the energy sector to provide "packages" of energy services to remote rural areas such as for rural health care, education, communication, agriculture, lighting and water supply. It is hoped that this document contributes to the generation of ideas and discussions among the different institutions involved in providing these services to rural areas and thereby to an "informed" decision on the PV technology option.
EAST INDIA VYAPAAR Renewable Energy-SolarPhotovolaticEnergy solar the photovoltaic energy is part of Rural Revolution in the rural areas where grid power is not yet reached. In India solar http://eastindiavyapaar.com/rene_energy/rene_solar-pv.htm
Extractions: East India Vyapaar Search Tips Product Company All States West Bengal Orissa Bihar Jharkhand Assam Home Economy IT Information Renewable Energy ... Renewable Energy Renewable Energy Energy and Scope Solar Energy Solar Photovoltaic System Bio-Gas Energy ... Energy Education Park (Kolkata) Solar Energy can be directly converted to electrical energy by means of Solar Photovoltaic System. Solar Photovoltaic (SPV) Technology enables the conversion of direct sunlight into electricity without involving any moving part such as turbine etc.The basic part Solar Photovoltaic is known as Solar Cell. Solar Cells are made of semi conducting materials- a thin wafers of Silicon which is exposed to sunlight, to produce D.C electric current. The Solar Photovoltaic system were developed for the space program satellites in 1950. Solar Photovoltaic system began to appear in commercial applications during 1970. Since 1980 the Photovoltaic systems have emerged as a useful power source in several applications.These includes Solar Centrums, Domestic lights, Street lights, Tele-communication, Hospitals and Electrification of rural areas and villages .