how does solar panel works ? basic principle?
612469
Solar electric panels are made up of something called silicon, the same thing that makes up sand. There is more silicon on the planet than almost anything else. Even though you can find silicon almost everywhere, making a solar panel is difficult and expensive. The silicon has to be heated to super high temperatures in a big factory, and then formed into very thin wafers. \n\nWhen sunlight hits a solar panel, it makes electrons in the silicon move around. (Electrons are teeny tiny specks--they?re way too small for us to see, even under a microscope.) The electrons flow through wires that were built into the solar panel. And presto! We have electricity! We can do whatever we want with this electricity, run a calculator, a CD player, or, if we have big enough solar panels, a satellite! [Solar panels are also called photovoltaic panels. "Photo" means light and "voltaic" means electricity.]
720553
There are many ways to take advantage of the energy produced by the sun.  A good place to start is with a passive solar energy water heater.  They are inexpensive to install and easy to maintain.  The simplest ones use the radiant energy of the sun and convert that to thermal energy using a material that absorbs the light instead of reflecting it, in layman's terms, something black.  \n\nPhotovoltaic (solar cell) systems convert sunlight directly into electricity. A solar or Photovoltaic cell consists of semiconducting material that absorbs the sunlight. The solar energy knocks electrons loose from their atoms in a semiconductor, allowing the electrons to flow through the material to produce electricity.\n\nFor a more in-depth explanation of photovoltaic technology try this site.
1166742
solar cells produce electricity through a process known as photoelectricity.Photoelectricity means a process in which light is shone (fall on) photocells which bring about the release of electrons.i.e.production of electricity .
864430
Not really. If we were interested in ATP instead of electricity, it might work, but even then we'd have to supply this solar cell with a fresh supply of CO2 and H2O. In this case, Physics has a better answer than Biology (the photoelectric effect)
239071
get a solar panel and hook it up to your car.
659160
It absorbs light energy from the sun.
239404
This is suppose to be common sense by now well unless you're 6 yr old then that's different. So I guess you need read this:\n\nsolar energy, 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. Solar energy is needed by green plants for the process of photosynthesis, which is the ultimate source of all food. The energy in fossil fuels (e.g., coal and oil) and other organic fuels (e.g., wood) is derived from solar energy. Difficulties with these fuels have led to the invention of devices that directly convert solar energy into usable forms of energy, such as electricity. 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). Thermoelectric generators convert the heat generated by solar energy directly into electricity (see thermoelectricity). Several projects have produced electricity on a large scale by using the solar energy available in desert areas. In one system, large numbers of solar batteries generate electricity for Coconut Island, off the coast of Australia. In another, oil flows through pipes that are set in reflecting parabolic troughs that can trap the heat from sunlight falling on them. The heat from the oil is then converted into electricity (see power, electric). Heat from the sun is used in air-drying a variety of materials and in producing salt by the evaporation of seawater. 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. Such systems, however, usually require a conventional heater to supplement them. Solar stoves, which focus the sun's heat directly, are employed in regions where there is much perennial sunlight.\n\nAlso there are tons of info on this on the web just go to Yahoo search or Google and type in Solar Energy. It's not that hard.
611192
It depends on the type of solar panel. Those that merely work in temp differential naturally preform worse. However, for those that work on radiation wavelength, the colder the temp the greater the voltage produced. The hotter the panel, the less efficient it is.\n\nNow why is this? Because both resistance and resistivity increase with temperature, thereby making the panels less efficient. This is why ultrafast and ultramodern computers are often liquid cooled.\n\nSo, provided that you can get enough of the correct wavelength of light to hit the panel (the same as in the summer) you'll actually produce a higher voltage.
386110
Solar cells convert the solar energy into elctricity and this electrical energy can be used for cooling
33350
If you are into electrochemistry you could make your own solar cell or a flat panel solar cell. A solar cell is a device for converting energy from the sun into electricity. This project is fairly easy and there are plenty of pics to show you exactly how its done. \n\nAlso read the first source listed first because it tells you things you need to know for the second experiment.
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http://moskaluk.com/Mesh/solar_7.jpg\nMIKE
241716
A solar cell is usually a combination of materials, the photons in the sunlight strips electrons form one layer of materials to the other and moving electrons induces a current. Newer solar cells have multiple layers the work with the different wavelengths of the sunlight to increase the efficiency. Average power of sunlight on the earth is roughly 1000 watts per square meter. SO you can see a solar power station need a lot of room to generate enough power. The encapsulation of the cell to protect the cells also reduces the efficiency of the cells.
517654
Need to know the impedance of the solar panel to determine current.
607273
Honestly, it is because solar panels alone are too unreliable (cloudy days, etc.) and WAY too expensive to use and maintain. It would not be economically feasible.
790374
Not unless you can figure out a way to produce a semi-conductor at home.  Basically a solar cell (photovoltaic cell) is a couple of layers of silicon  P type and N type.  Electrons become excited when light quanta penetrates into the P layer. The excited electrons move to the N type and (very oversimplified) create electricity.\n\nI doubt you would have the facilities to create the materials at home.
875871
Photo-electric is the process that solar cell use to priduce electricity.  Given that you wrote about 150 words just to explain a simple question, I do not believe 5 pages is totally outside of your range.\nThe following link will be a good start, but DON'T COPY IT VERBATIM.  Teachers have access to the internet as well; try to put it in your own words, and even more important, try to understand; that is what education is for: understanding.
593275
Solar Power harnesses the energy of the sun to turn water into high pressure steam. The sun gives panels which heat the water kinetic energy to affect the interaction energy of the water (like how you get a sunburn). The steam rotates a turbine to generate power.