about 22 hours ago - 3 comments
Question by : how large must a solar panel be to power a train? If the schematics of a solar train were drawn, what would they look like? Would the train be large or small? Where would the panels be placed? And if so, how large must the panels be to fit the roof? Even
about 2 days ago - No comments
Question by Ashley J: How much solar energy (kJ) would have to be…? How much solar energy (kJ) would have to be transferred to a 145.0 foot length of asphalt highway that is 49.0 feet wide and 25.0 centimeters deep in order to raise the temperature 5.00 oC ?The average density of asphalt is 721
about 3 days ago - 6 comments
Question by PHIL: Is it true that one can save some cost of electricity by pulling the plug out of the receptacle? Is it worth the effort? —————————————— Answer by Chuck PThat would be on things that have pre warmers in them like TV sets, no it’s not worth the effort. Answer by William Bonly
about 3 days ago - 2 comments
Question by : How do I make my own solar panel? How do I make my own solar panels and generate my own power cheaply. The commercial one’s are just too expensive. —————————————— Answer by mugikuyuIts very easy but the entire process is quite lengthy. You will need to purchase some materials and then assemble
about 4 days ago - 2 comments
Question by elrodvoss: What Solar Panel Efficiency would replace Coal? A friend sent me an article that a company called Fraunhofer has produced solar panels that can achieve 41.1% efficiency. Now taking into account the fact that solar do sent work during storms or night and greatly reduced during winters, what % do you think
about 6 days ago - No comments
Question by Jake P: Are there any Universities that have programs about solar energy? I wanted to know if there are any Universities in North America that have programs that teach about solar energy and using it for electricity in a home (mainly installation). —————————————— Answer by Dr. Clandestine:)Many dude, they have a nice supply
about 1 week ago - 1 comment
Question by GorgeousLilThing: I want to conserve energy, Is there anyone out there who knows how to make solar panel the simple way? What are the key materials needed to create a solar panel and the simple steps to assemble it. What would be the desirable size of the panel enough to run a desk
about 1 week ago - 2 comments
Question by cb_greenhill: How much electricity does this really save? How much can you really lower your electric bill by hanging clothes to dry opposed to using the dryer? By washing dishes instead of using the dishwasher? By washing clothes with cold water only? —————————————— Answer by Bergiif you do it offen then it will
about 1 week ago - No comments
Question by ankita.iitm: how to generate electricity by wind up action(just like in toys)? THE DEVICE SHOULD STOP THE ELECTRICITY GENERATION WHENEVER WE LIKE AND WE WOULD BE ABLE TO USE THE REMAINING UNWINDING TO GENERATE ELECTRICITY SOME OTHER TIME not wind turbine but wind up action like in toys where u wind up and
about 1 week ago - 1 comment
Question by : why not people use solar energy for their daily need? I am observing that normally we need electricity for lighting purpose then why not people use solar energy for lighting in each room. —————————————— Answer by DifdiMost people are not millionaires. Solar energy systems equal to what you can get via normal
(out of 9 reviews)
about 1 year ago
Review by S. Ehring for Practical Photovoltaics: Electricity from Solar Cells
Rating:
Practical Photovoltaics is one of the finest, most comprehensive guides to the world of solar energy. The book starts with a beginer’s course in solid state physical devices (which taught even an Electrical Engineer such as myself new things) and leads into the history of solar cell materials and procedures over the years. Next comes an in-depth discussion of the various types of materials, and how they are suited for different applications. He makes logical predictions about the future of some of these materials, and hints around at what new techniques scientists are starting to look at today.
In the appendix, he even describes how to assemble your own array of solar cells for those who wish to try a hands-on approach to learning.
Oh, yeah, one more thing: he has a decent list of recomended readings at the end of each chapter, allowing you to select topics that interest you to continue your reading.
about 1 year ago
Review by G. Thomas for Practical Photovoltaics: Electricity from Solar Cells
Rating:
I won’t pick on the book too much because if you are interested in the chemical composition of photovoltaic systems you will find this interesting. I personally thought I was getting something which talked about practical applications, and not so much the transport of electrons in crystaline substances. If you are looking at the possibility of applying solar at home then looks somewhere else. If you need a history lesson on the start of solar electric then this isn’t a bad book at all. Although it appears a little dated and the pictures aren’t that inspiring, if your wondering how photovoltaic cells work on an atomic level you’ll love this.
about 1 year ago
Review by Dr. Carlos A. Malaga for Practical Photovoltaics: Electricity from Solar Cells
Rating:
I am becoming increasingly interested in photovoltaics. When purchasing this book I had already read two texts. It is an excellent immersion text that takes you beyond the elementals into the details of how it works, why, and how they are manufactured. After reading this text I feel a lot more comfortable discussing photovoltaic issues with professionals in the field, and I am actually able to contribute to the conversation. The only drawback is that the text is somewhat in need of updating.
about 1 year ago
Review by Gary L. Iverson, Sr. for Practical Photovoltaics: Electricity from Solar Cells
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I just received this book. I was expecting a “book / manual” that covered more than the most basic of information that almost all know. It is a good book, but……..
If you just want to know “about” photovoltaics from the standpoint of say, a high school student for a basic level science project….. this will do well. It gives the basic physics for the solar cell, the way they have been used in society now, and offer projected future uses of the same.
If however, you actually wanted serious practical info, possibly building your own system, possibly going into a home Grid-Tie system, or other ideas with a little bit more technical and useful data, this book isn’t it even though the name “Practical Photovoltaics” sound as if you would.
about 1 year ago
Review by Gilberto S. Naranjo for Practical Photovoltaics: Electricity from Solar Cells
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I had the oportunity of read this book. It is easy to understand and I had the book right on time.
Thanks.