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Does making solar panels cause more pollution than they take away when used?
- Long ago, say, in the 960's, it was true that solar cells did not return the energy of their manufacture. In those days, cells were 4% efficient, and made with more material and a less efficient process. Unfortunately, the myth persists that this is still the case today from unaccredited sources. Kudos to Michael for the nrel link. That study was actually done over 0 years ago, and since then, technology has advanced even further. Manufacturers have been able to reduce the thickness of cells in general in the last decade, to use less crystalline silicon. Also manufacturers such as Suntech with their pluto process are now able to use a lower grade of silicon, that takes less energy to refine. The result is that the energy payback time is even shorter today than estimated in the linked paper.s
How many Solar Panels for my Pool?
- You okorder.com/s
What are solar panels? what do they do?
- Solar panels are, well panels that take solar energy from the sun, and use it as heat or electricity. It is used for many things but depending on the power of the sun and the panel, they can be used for trains,houses to heat them but you need a lot of sun, and they don't work without sun obviously.s
Which solar panel should I choose?
- the two may well be extra effective. while it particularly is cloudy and little solar (wintry climate) you have got a breeze. while it particularly is nonetheless and sunny, you have the solar. while the batteries are charged, extra potential from the windmill would nicely be shunted right into a resistance heater in a water tank, preheating important different and infants water, reducing that cost. draw back of windmills: there is a few noise. you do choose a tower of a few variety to get above treeline. it particularly is mechanical, so it particularly is going to choose periodic upkeep and would injury, or will placed on out, or be broken in a windstorm. Panels will final for some years, in simple terms would desire to be wiped sparkling of snow interior the wintry climate, and washed off, in case you reside in a dusty section. they are hard, however the glass would nicely be broken.s
Solar Panel System at Harbor Freight?
- I would not buy Harbor Freights Chinese made Solar kits-I tried one and don't think it produces enough power to run a flashlites
how much does solar panels cost for you home?
- Although its costs have been going down a little, solar power is still pretty expensive. To power a home you are looking at at between $8000 to $20,000 dollars (it will eventually pay for itself). There are systems that tie into the existing local power supply so that you have the city's power for back up (note: most power companies will buy electricty from you if you make more than you use). Then, of course, there are stand alone systems that operate without anyother power source (these are best for use in a place where electric lines aren't available or practical).s
How many LED's can power a solar panel?
- Your question has a lot of science involved that I don't understand perhaps the link posted in my source for this answer could help you out? It a site containing only info on LED Lights. Good Lucks
Solar-Cell-panel help please?
- I hope this will help you choose your charge controller / battery charger more effectively. Good luck!s
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 ...
Material classification of chinese solar panels
- Chinese solar panels are a device for converting solar radiation into electrical energy by absorbing sunlight, or by direct or indirect effects of the photoelectric effect. The mai...
How much to spend on biogas plant cost
- Biogas utilization has many benefits such as economy, society, ecology and so on. Among them, some can be used to measure the value of money, some difficult to monetary; some can b...
the development of biogas engine
- At present, most of the energy used in the world is fossil fuel, experts believe that in the beginning of twenty-first Century, half of the fossil fuel is exhausted. The shortage o...
How do Solar Cells Work?
- If you are a science major then this is not the article for you but if, like most of us here, you have sometimes wondered if it is possible to understand how solar cells work in si...