Solar Power Photovoltaic Cells
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Why are solar panels not that efficient?
- The latter link has a decent explanation, if not a bit technical: One of the most fundamental limitations on solar cell efficiency is the band gap of the semiconductor from which the cell is made. In a photovoltaic cell, negatively doped (n-type) material, with extra electrons in its otherwise empty conduction band, makes a junction with positively doped (p-type) material, with extra holes in the band otherwise filled with valence electrons.s
Solar Panels Have Faded?
- Unfortunately Eileen the panels are bound to fade as its par for the course. Over time much like everything else (from an AC condenser to your knees and hips) everything starts to go south. When did you purchase and install your panels? If this was done within the past few years then something is definitely wrong, and you should have the manufacturer and installer come back and replace the panels....on their dime of course. Is the warranty on your panels still in effect? If so then its definitely something that they have to come back and take care of. There is a company I know of called Sun Electronics that has a 20 year warranty on their products, so if its worth anything you might want to buy your new panels/system from them. The panels around today are more efficient than those of years past, and with the cost coming down due to economies of scale and the tax incentives you might want to consider getting a new system. Sorry to let you down though Eileen!s
Who will remove solar panels?
- Mr. Sun when he finds out what the **** exactly is going on.s
Do solar panels make electricity from light intensity or watts?
- DIY okorder.coms
how to build solar panels?
- At first, you will need about one square foot of thin copper plate, two alligator clips and short leads of wire, a wide mouth glass jar, tap water and salt. Cheers,s
Solar Energy Panels, a good idea?
- The panels are relatively easy to install. The batteries and the inverter tend to be heavy and you will need many people or mechanical assistance. You are talking about high current DC thus if you touch the wrong wires it's CC (Cancel Christmas - Rescue Squad Term). You also also dealing with lead acid batteries so they need to be well ventilated or we have another CC situation. Should you have a short, the batteries will overheat and explode projecting sulfuric acid... And the best part is when all is said and done, you are only paying twice to three times the cost for the electric over the life of the system as compared to buying the electric from the power company.s
Silicon, Polychristaline, or Solar Panel?
- Let me help you get an idea of what you are talking about as your notes seems a bit jumbled. Mostly when they refer to a silicon solar cell they mean that the silicon is one crystal of silicon. (very much like a diamond, but with atoms of silicon instead of carbon). A single perfect crystal of silicon can be grown that is very large at temperatures near the melting point of silicon or around 400C and then is sawed up to create electronics or solor cells. Polycrystalline :) solar cells are also made of silicon, but instead of a single crystal it is made of a jumble of small crystals that have different sizes and directions. So these types of solar cells can be made using a silicon gas (siline: SiH4) at much lower temperatures 600-700C. So these are less expensive to make, but because they are not perfect crystals a poly solar panel that is the same size as a crystalline solar panel will make less energy. I hope that helps.s
how to hook up solar panels to meter?
- Contact your power company. They will advise you of the proper configuration. If you try to attempt this without notifying the power company and something goes wrong, they can and most likely will hold you responsible for all damages.s
There are many kinds of solar power products
- There are many kinds of solar power products, below I will introduce some products in our common life.solar power products---Solar panels The sun shines on the semiconductor p-n ju...
introduce to you the disadvantages of biofuels
- Weigh the disadvantages of biofuels：The rising world food prices, which has made people began to re evaluate the development of disadvantages of biofuels. There may be multiple r...
Development of Chinese solar panels companies in the next few years
- China's solar panels companies battery industry is in a rapid growth phase, in the growing period. Improve the industry chain and enhance the ability of independent innovation ...
Solar Cells? What Use are they?
- Ok, so you are probably thinking, solar cells, what's all the fuss about, they are used to make soar panels mounted on houses to help save electricity right?Right, they are, th...
Classification and function of discount solar panels
- Classification: crystalline silicon cell board: polycrystalline silicon solar cells, single crystal silicon solar cells.Amorphous silicon cell plate: thin film solar cells, organic...