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Questions and Articles

64 items

What is the difference between a solar hot water panel and solar cells?

A:
solar cells trap suns heat & stores it & solar hot water panel traps heat and makes water hot ... more

Mystery of Solar Cells - How Do Solar Cells Actually Work?

A:
Solar cells are a fascinating thing to watch. They capture photons from the sun and create electricity for you. But do you know how these solar cells actually work? Reading this article will give you the answer about solar cells and how hey are const ... more

How Do You Make A Solar Cell?

A:
Solar Cells convert light energy into electricity at the atomic level. For many years, the process of producing electricity through sun wasn't really understood, but throughout the 20th century the science has been refined and process has been more f ... more

Do solar cells produce more energy than is used during their manufacture?

A:
Yes. The amount of time it takes for a technology to produce more energy than was used in their manufacture is called the energy payback time. Solar cells have an energy payback time ranging from a few months to 6 years, depending on the type of mate ... more

OK, concentrating light onto solar cells means more power output. But does that mean it's more cost-effective?

A:
Not necessarily. Concentrating photovoltaic systems often require lenses or mirrors to focus the light onto solar cells. To maximize the amount of light they receive, high-concentration systems can be mounted and need a motor so that the cells track ... more

What are the technologies used to make solar cells?

A:
Thanks to extensive research, many types of solar cells are now available. And new and different approaches-permitting a trade-off between lower manufacturing costs versus lower efficiency in converting sunlight to electricity-have it possible to red ... more

How Do Screenprint Solar Cells Work?

A:
Composition Screen print solar cells are a special type of solar cell that uses nanoparticles to trap the energy in the sun's rays, instead of using silicone-based photovoltaic cells. Nanoparticles are extremely small particles, sized between 1 and 1 ... more

In the future, can solar cells be efficient enough to power products that we use every day (ie: computers, cars, coffee machines)?

A:
Solar cells are already efficient enough. The reasons that we have not switched are two-fold -- (1) low ROE, as explained above, and (2) the political forces and economic forces which have a large investment in traditional (fossil fuel) energy source ... more

How efficient are current solar cells?

A:
The current generation of solar cells convert only 12 to 15 per cent of the sun’s light into electricity. However in recent years there have been significant advances in their design. Some new cells on the market now are around 20% efficient and some ... more

How many mega wats of energy does 100 solar cells make?

A:
Most domestic solar cells produce slightly less than one watt of energy and the number of cells connected would be the only way to increase the total output. With this in mind 100 cells would only produce slightly less than 100 watts. Too expensive f ... more
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