PV Gap

Claire Said:

why do people think solar power is energy efficent?

We Answered:

Your use of Solar Power is kind of vague. Passive systems are very efficient because if they are set up right, they use virtually no power, or can be rigged to run on nothing.

The most basic of basic is just letting the sun come though a south facing window during the day. I have even seen jars of water and rock boxes used to retain heat for the evening hours.

I think you are going on about PV systems that generate electricity. They vary in performance, and performance can vary on installation. If you mount them on moving platform that can follow the sun, you will get the most use, or efficiency out of them. To complicate, you just cannot hook these things to your house. All have to go though a conversion to AC, and the equipment used can effect that efficiency as well. In short, it would be hard to judge what your basing your figures on until you specify the exact set up, the stated outputs, the actual outputs, the entire set up, and where you live.

Stacey Said:

who can sell me solarcell for construction of solar panels//A S P.?

We Answered:

You can try a place like this http://www.goldmine-elec.com/SolarItems.… but be aware that building a panel from cells at this price will cost more than simply buying a commercial panel. And the commercial panel will be weatherproof, reliable, and will have a warranty.

Frank Said:

Solar Panel Construction?

We Answered:

Using raw metallic silicon to make your own photovoltaic cells is a long shot--probably not possible.

So I would forget doing it that way. The facilities required for making photovoltaic cells are quite sophisticated, and are really not something you can do in your garage or spare room.

You will have to spend money to buy photovoltaic cells. The link below is a good starting point.

http://scientificsonline.com/category.as…

They have a number of scientific "kits" from which you can learn a lot. There are numerous other sources.

But you will not succeed in using silicon from old junk parts. It can't be done.

Sorry. I hope something works out for you.