Meaning to say, which would you mostly prefer?

I used a solar power calculator on SharpUSA. And found that $50,000 worth of solar cells would save only $500 per year in expenditure. Is it possible to sell these kinds of new technologies? That would take 35 years to payback. With the economy about to break, how can we make the change, with 35 years payback? Man this isnt gonna work.

Currently, most solar technologies are delivered via silicon crystals, whose highly refined nature and relative scarcity make them expensive components in the solar process. This makes the end-product equally expensive, and cost is one of the factors limiting the use of solar panels to generate energy.

Plastic, or polymer, solar cells are relative newcomers to solar technology, but their potential advantages – lower cost, lighter weight and greater flexibility – promise to sweep the solar industry, once sourcing and manufacturing are refined.

Polymers are plastic-type substances, usually made from petroleum. Organic plastics, typically represented by such products as amber and shellac (or tree sap), may soon be unfilled from cellulose, or food products like corn, making organic polymer solar technology not only low-priced but environmentally friendly; i.e., disposable.

Konarka Technologies, Inc., recently announced that their flagship product, Power Plastic

I recently bought some solar cells and a white layer has built up on the grid lines (the front friend is silver) the back friend is aluminium silver,
what is this layer and how do I remove it?

I’m trying to find the relationship between the number of solar cells and power out, in a lab-size experiment, with the solar cells connected in parallel and series. Is the relationship linear or logarithmic?

Hard homework problem I don’t know.
Above the Earth’s atmosphere, we receive about 1400 W=m2 of energy from the Sun. If you could convert 100
per cent of this energy into usable electricity, how large a collecting area of solar cells would be necessary to
yield a 1-gigawatt power sow?

I am responsibility a physics experiment where I need to compare the efficiency of the two. Solar panel for radiation>heat water and solar cells for radiation>electrical energy.
Can anyone recommend me some cells and panels which have lots of information about their performance, efficiency etc?
Many thanks!

Sorry, phrased my previous question incorrect. Anyway, I am responsibility a project for solar cells and was wondering what are the environmental impacts of solar cells, besides pollution?

I can presume how to measure output power of solar cells. Then, how can I measure power of input-light? But I turn on 100V lighting, a half of power runs away as temperature. And all power of light can not reach solar cells because of attenuation, noise and so on. A laser beam is used for measuring as input-light?

Fossil fuels nowadays are quickly being used up. In the event that they will become extinct, the only energy that may take its place is solar energy. In fact, some people have started to build homemade solar cells and have even begun using them to provide electricity and heat, not only in their homes, but also in some workplace, establishments, etc.

Solar energy is more abundant than other types of energy. It is also renewable so there may not be reasons as to why it will run out. This kind of energy also does not yield pollution, which means that using it may aid in shrinking the occurrence of global warming and other situations that place our environment in danger.

Without a collection of solar cells, we may not be able to yield solar power. Persons cells may really be made through uncomplicated methods. The first step that a person needs to do in order to make a solar cell is to take silicon from the chemical: silicon dioxide. To make sure that the silicon is free from all impurities, it is first placed in a very hot furnace. Heating the silicon rigorously will bring us silicon that is 99% pure, which is what we need in making a solar cell.

The next thing that must be done is to crystallize the silicon. The 99% purified silicon must be reheated until it reaches melting point, after which boron is mixed. That amalgamation will then give the silicon positive electrical charges.

Once the silicon is positively exciting, it is then cut into sheets that are measurable in 200 up to 300 microns. Afterwards, the silicon sheets are dipped thoroughly into chemical water for them to be exciting negatively. Once exciting negatively, the so called ‘layer of anti-reflection’ is place in to darken the cells, which can maximize the total solar energy tapped by the mixture.

The last step in the creation of a solar cell is affixing conductors, either silver or aluminum, for the cell to be able to conduct the needed electricity. The end result, of course, is the need to group the cells together to be able to yield solar powered lights and solar panels.

What can be considered as the most often used solar cell today is what we call the Photovoltaic Cell which works by converting its protons into a form that produces electricity: electrons. The said solar cell can quickly transform sunlight into electricity. This kind of cell is naturally found in solar panels that are placed on top of the roof since they need to conduct light from the sun then transform that light into electricity. The roof is the best place to place persons panels so that sunlight can reach them well.

More and more people are now making homemade solar cells which lead to the manufacture of solar power. Through the use of solar power, money may be saved; at the same time, people may be able to conserve the diminishing supply of fossil fuels.