The day has arrived when you have to think about how to build solar panels in your own home to save energy bills and therefore precious money and do your little bit for saving the environment.
The advantage of this experiment is to learn about something first-hand what one has only read about. This way you will know what it is for yourself. And your entire family can participate too! To begin, head out to the hardware department.
Once there, buy half a square foot of a sheet of copper flashing, an electric stove, a large mouth bottle, glass or plastic (5 litre mineral jar), a sensitive micro-ammeter, few table spoons of table salt, tap water, sand paper or wire brush on an electric drill, metal shears and three alligator clip leads.
First thing, wash hands to keep clean and dry. Cut a piece of the copper sheeting to the size of the diameter of the electric stove. Now, wash copper sheet with soap to rid it of any oil. With sand paper, clean the sheet really well.
Once this is complete, let the sheet cool off without inducing the cooling process. It will be seen that the sheet is getting smaller. Flaking of the chemical deposits will be seen at this point.
As soon as it cools down entirely, it should be held under a tap of running water to allow the flakes to fall off. This has to be done with ease and a gentle touch so as not to hurt the SOLAR PANEL.
Run water over it from a running tap after it cools down. This will wash off the flakes but ensure you do this really gently and do not erode this SOLAR PANEL created by you.
Clip on the alligator leads. The new, fresh sheet must be connected to the positive part of the meter while the roasted one should be joined to the negative side.
Mix hot tap water with a few table spoons of salt until completely dissolved. Pour the saltwater into the bottle taking care not to wet the clip leads. Pour rill about an inch of the copper sheets are above water. Your solar cell is ready!
Of course, do not think that it will light up a bulb or something like that. This unit generates only 50 micro amps at 0.25 volts. Ways to use this can be as a detector of light or light meter. To light up an entire home would require the manufacture of hundreds more of such batteries. That would come to a huge expense.

