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Topic: Solar energy


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  Solar power - Wikipedia, the free encyclopedia
Energy obtained from methane (natural gas) may be derived from solar energy either as a biofuel or fossil fuel, but some methane derives from the primeval gas cloud which formed the Solar system and is therefore not solar in origin.
Solar design is the use of architectural features to replace the use of grid electricity and fossil fuels with the use of solar energy and decrease the energy needed in a home or building with insulation and efficient lighting and appliances.
Solar heating systems are generally composed of solar thermal collectors, a fluid system to move the heat from the collector to its point of usage, and usually a reservoir to stock the heat for subsequent use.
en.wikipedia.org /wiki/Solar_energy   (3804 words)

  
 AllRefer.com - solar energy (Technology: Terms And Concepts) - Encyclopedia
Solar energy is needed by green plants for the process of photosynthesis, which is the ultimate source of all food.
Solar batteries, which operate on the principle that light falling on photosensitive substances causes a flow of electricity, play an important part in space satellites and, as they become more efficient, are finding increasing use on the earth (see solar cell).
Solar heating systems can supply heat and hot water for domestic use; heat collected in special plates on the roof of a house is stored in rocks or water held in a large container.
reference.allrefer.com /encyclopedia/S/solarene.html   (429 words)

  
 Solar Energy
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 thermal power generation is essentially the same as conventional technologies except that in conventional technologies the energy source is from the stored energy in fossil fuels released by combustion.
Energy losses from thermal-energy transport are minimized as solar energy is being directly transferred by reflection from the heliostats to a single receiver, rather than being moved through a transfer medium to one central location, as with parabolic troughs.
www.eia.doe.gov /kids/energyfacts/sources/renewable/solar.html   (1949 words)

  
 Howstuffworks "How Solar Cells Work"
There are solar cell arrays on satellites, where they are used to power the electrical systems.
This is a seductive promise: On a bright, sunny day, the sun shines approximately 1,000 watts of energy per square meter of the planet's surface, and if we could collect all of that energy we could easily power our homes and offices for free.
Rollable solar panels exist that allow you to generate enough energy to power a laptop, cell phone or other digital camera while you're away from conventional sources of electricity.
science.howstuffworks.com /solar-cell.htm   (270 words)

  
 SOLAR ENERGY   (Site not responding. Last check: 2007-10-07)
Solar cell are also being used in developing countries.
The new Mazda 929, uses solar cells to activate a fan to ventilate the car when the car is idle and parked during a sunny hot day.
However, it has convinced analysts that solar cells will become a significant source of energy by the end of the century.
www.history.rochester.edu /class/solar/cells.htm   (357 words)

  
 The Energy Story - Chapter 15: Solar Energy
Even nuclear energy comes from a star because the uranium atoms used in nuclear energy were created in the fury of a nova - a star exploding.
Solar cells are also called photovoltaic cells - or PV cells for short - and can be found on many small appliances, like calculators, and even on spacecraft.
Solar energy can be stored in batteries to light a roadside billboard at night.
www.energyquest.ca.gov /story/chapter15.html   (1136 words)

  
 SOLAR ENERGY   (Site not responding. Last check: 2007-10-07)
Like nuclear energy, solar energy does not put CO2 into the atmosphere, and so needs to be considered if global warming has to be avoided.
My opinion is that except for special applications, solar energy is a resource and not a reserve, to use economic jargon.
However, solar energy would be expensive enough to put nations that decided to depend on it alone at a serious economic disadvantage compared to nations that were not constrained to rely on it.
www-formal.stanford.edu /jmc/progress/solar.html   (1137 words)

  
 Solar Energy network
The solar wings of the international space station are the largest power-generating solar arrays ever flown in orbit.
Solar water heating is a technology that every homeowner can use to save dollars on utility bills.
With the electrical and natural gas energy distribution in a state utter chaos, great attention have been brought to alternative energy sources such as solar Parabolic concentrators and receiver tube applications which has been a proven technology for power generation for several years in California and manyother regions.
www.solarenergy.net   (766 words)

  
 Solar energy   (Site not responding. Last check: 2007-10-07)
In India too, the Indian Renewable Energy Development Agency and the Ministry of Non-Conventional Energy Sources are formulating a programme to have solar energy in more than a million households in the next few years.
This zone, having abundant solar energy available, is suitable for harnessing solar energy for a number of applications.
Solar thermal energy is being used in India for heating water for both industrial and domestic purposes.
edugreen.teri.res.in /explore/renew/solar.htm   (511 words)

  
 Hawaii Solar Thermal Energy   (Site not responding. Last check: 2007-10-07)
Solar thermal energy is heat energy obtained by exposing a collecting device to the rays of the sun.
Solar thermal energy makes use of a renewable natural resource which is readily available in most parts of the world.
Solar thermal systems are not cost-effective in areas which have long periods of cloudy weather or short daylight hours.
www.hawaii.gov /dbedt/ert/sol_t_hi.html   (2472 words)

  
 SOLAR ENERGY
Solar is cost effective right now, especially when you considerthe cost to our health from air pollution, solar is just as competitive as any other energy source.
Solar photovoltaic cells, which are a wafer-thin chip of plastic or glass that converts sunlight directly into electricity, were first used in 1958 on the Vangard satellite and have been solar powering ourtelecommunication industry ever since.
Solar (hot water) thermal flat plate technology is a well-proven art that is viable throughout the U.S. for heating the water for showers/baths, dishwashing and other 120-180 F home/ commercial/ industrial application.
www.ecomall.com /solar.htm   (1459 words)

  
 Solar Energy Systems by Akeena Solar
In most states, installation costs of a solar energy systems do not affect the assessed value of your property -- and purchase is exempt from sales tax.
Solar energy systems are the most environmentally friendly way of generating electricity.
In order to maximize your savings from a solar energy system it is necessary to do an analysis of the solar exposure of your site, consider the applicable module mounting and electrical interconnection issues, and evaluate available electric rate plans.
www.akeena.net   (611 words)

  
 The educational encyclopedia, physics, hydro energy, solar energy, wind energy, power plants, Water wheels   (Site not responding. Last check: 2007-10-07)
Australian renewable energy website renewable energy is any source of energy that can be used without depleting its reserves.
Geothermal energy systems geothermal energy is heat energy originating deep in the earth’s molten interior.
Solar cell operation solar cells convert light energy into electrical energy either indirectly by first converting it into heat, or through a direct process known as the photovoltaic effect.
users.telenet.be /educypedia/education/physicsenergyren.htm   (461 words)

  
 Solar Panels and Solar Energy facts and info for Pool Heating, Cooking - Solar energy ,information
A solar panel is a device that converts the free energy from the sun into more readily usable forms, either absorbing its heat to directly heat water or air or converting its light into electricity.
Calculators with small solar cells on the front are commonplace and dual-powered electrical items such as radios and lanterns are increasingly more familiar sights for sale in our local appliance stores.
“Solar panel” is also a slightly misleading phrase; panels are comprised of modules that are in turn made up of interconnected solar cells.
www.siemenssolar.com   (333 words)

  
 solar energy on Encyclopedia.com   (Site not responding. Last check: 2007-10-07)
any form of energy radiated by the sun, including light, radio waves, and X rays, although the term usually refers to the visible light of the sun.
Gary Cole holds a meter measuring energy generated by the solar energy system he has added onto his home in Cleveland, Ohio.
Solar collectors can be seen on some of the roofs in The Village in Benicia, California, which was one of the first mass produced solar residence developments.
www.encyclopedia.com /html/s1/solarene.asp   (838 words)

  
 EERE: Solar Energy   (Site not responding. Last check: 2007-10-07)
Solar technologies use the sun's energy and light to provide heat, light, hot water, electricity, and even cooling, for homes, businesses, and industry.
Solar resource information provides data on how much solar energy is available to a collector and how it might vary from month to month, year to year, and location to location.
Consumer demand for clean renewable energy and the deregulation of the utilities industry have spurred growth in green power—solar, wind, geothermal steam, biomass, and small-scale hydroelectric sources of power.
www.eere.energy.gov /RE/solar.html   (346 words)

  
 NREL: Solar Research Home Page
Solar technologies use the sun's energy to provide heat, light, hot water, electricity, and even cooling, for homes, businesses, and industry.
Learn more about solar energy technologies such as photovoltaic (solar cell) systems, concentrating solar systems, passive solar heating and daylighting, solar hot water, and solar process heat and space cooling.
Solar radiation research and data collection is performed at NREL's Solar Radiation Research Laboratory.
www.nrel.gov /solar   (360 words)

  
 solar energy panels power electric and heating systems
GO Solar Company makes it easier for you to understand this technology by providing you with informative solar electric, and solar heating web pages and consumer guides.
GO Solar strives to provide you with the in depth component and system knowledge that is essential to maximize the potential of your solar investments.
Learn the difference between solar electric panels (modules), solar pool heating panels (collectors) and solar hot water panels, and learn how to use solar energy to offset utility bills by generating reliable and clean non polluting solar power.
www.solarexpert.com   (348 words)

  
 Direct solar energy-Key text
Alternative energy sources are far less polluting than traditional fuels, although they may have other drawbacks.
The great feature of solar energy is the fact that it is likely to continue to exist so far into the future that we can think of it as being unending.
The solution is to put the sun’s energy into a form which can be stored and moved around, so that we can collect it in those places where most of it falls and move it to where it is needed.
www.science.org.au /nova/005/005key.htm   (839 words)

  
 Solar Energy (Science Tracer Bullet - Science Reference Services, Library of Congress)
This update of TB 80-7 emphasizes the literature on solar heating and cooling, solar thermal energy, and photovoltaic power generation.
Vance, Mary A. Solar houses: a bibliography (A 1505 revised).
Solar water heaters now: with recent advances, they beat the cost of electric and oil-fired systems.
www.lcweb.loc.gov /rr/scitech/tracer-bullets/solartb.html   (1385 words)

  
 Nanoparticles Used In Solar Energy Conversion
DOE Outlines Research Needed To Improve Solar Energy Technologies (August 15, 2005) -- DOE's Office of Science has released a report describing the basic research needed to produce "revolutionary progress in bringing solar energy to its full potential in the energy...
The problem with solar energy is that it has not been inexpensive enough in the past.
Kelley is developing nanoparticles that are just the right size for solar cells -- they can absorb all visible light but nothing from the invisible light at the red end of the spectrum, which would reduce voltage.
www.sciencedaily.com /releases/2002/08/020809071535.htm   (664 words)

  
 Boston Area Solar Energy Association
Junior Solar Sprint - Model solar car competition for middle school science students, organized and sponsored by BASEA in Eastern Massachusetts.
The Boston Area Solar Energy Association is convinced that New England's primary dependence on non-renewable energy sources is costly to our environmental, social, economic and political systems.
Therefore, we foster the design and use of solar and sustainable energy technologies through education, advocacy and the demonstration of practical, cost effective techniques.
www.basea.org   (209 words)

  
 Solar Energy Systems at sharpusa.com
Sharp is the #1 manufacturer of solar cells worldwide with nearly as much generating capacity as the next three largest manufacturers combined.
Our residential solar systems give families the ability to generate their own electricity from the inexhaustible energy of the sun - with no harmful emissions.
Imagine solar electricity not only powering businesses, large-scale utilities and neighborhoods, but also billboards, streetlamps and portable electronics.
solar.sharpusa.com /solar/home/0,2462,,00.html   (120 words)

  
 The UK SOLAR ENERGY Society   (Site not responding. Last check: 2007-10-07)
A special issue of the journal Solar Energy Materials and Solar Cells of the best papers is planned to accompany the full proceedings.
The Solar Energy Society participates in a project that is partially funded by the European Commission ALTENER Programme, the Solar Schools Forum.
The SOLAR ENERGY Society has close links with other renewable energy organisations and government bodies, and is thus able to promote solar energy in all its aspects.
www.brookes.ac.uk /other/uk-ises/home.html   (640 words)

  
 Solar Energy Radiant Heating Systems
Solar energy, in the last analysis, has always been the basis not only of civilization, but of life: from the primeval sun-basking plankton to modern man harvesting his fields and burning coal and oil beneath his boilers, solar energy has provided the ultimate moving force.
YES, you can have a solar heating system that will use free solar energy to meet your needs for heat and domestic hot water in an economical way.
Solar energy doesn't pollute or produce greenhouse gasses; and it doesn't deplete our finite energy resources.
www.radiantsolar.com   (259 words)

  
 Search Tuna Report for wind and solar energy   (Site not responding. Last check: 2007-10-07)
The kinetic energy of the wind is harnessed, initially by conversion to a rotation; this rotation can be used in a generator, or directly for a mechanical task, such as pumping, or milling....
Solar energy is a renewable energy source, is free and does not pollute....
Currently, solar energy is used on offshore platforms and to operate remotely located equipment at sea....
www.searchtuna.com /ftlive2/970.html   (1697 words)

  
 Housing & buildings - Solar PV   (Site not responding. Last check: 2007-10-07)
Solar PV Run on behalf of the DTI the goal of the Energy Saving Trust's Solar PV programme is to create a long-term, sustained and viable market for
Small-scale grants are subject to capping according to whether they're for a bolt-on or integrated system.
Get free advice about Solar PV in your area by calling 0800 298 3978 or find out more detail about how PV works here.
www.est.org.uk /housingbuildings/funding/solarpv   (239 words)

  
 Florida Solar Energy installations: solar hot water heaters, solar pool heaters, solar electricity
We specialize in the installation and maintenance of solar hot water heaters, solar pool heaters and solar electric systems.
From solar back-up power systems, solar water heaters, solar electricity and grid-intertie systems to the affordable luxury of solar pool heating, you can rest assured that we will give you the highest quality, easiest to manage solar system for your budget.
If you do live in Georgia or Florida, and are thinking about a solar energy solution, please drop us a line and let us know about your project.
www.ecs-solar.com   (598 words)

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