Michael Davis of Arizona, an astronomer and solar power enthusiast, has discovered an inexpensive way to produce electricity from solar power. He constructed solar panels from damaged and blemished solar cells that he found on eBay.

The potential benefits of solar power are well known – lower cost, less dependence on other natural resources, etc. The main drawback has been the initial expense – mostly in the cost of photovoltaic (PV) cells required to convert sunlight into electricity.

In searching for a source of PV cells, Michael found some on eBay that were damaged or blemished. Here is what he learned when he used them to construct his own solar-powered electric generator:

* They can perform almost as efficiently as new cells.

* These cells are much cheaper than new cells.

* They can be purchased on eBay or from other sources.

How To Construct A Solar Panel

If you are handy with tools, you can construct your own solar-powered generator following these basic steps:

1. Calculate The Number Of Cells You’ll Need

This will be based on the amount of power you use and the amount of sunlight available to you throughout the year. Since it takes a lot of photovoltaic cells to completely power your home, you may want to consider starting small – only providing enough electricity to power some lights and essential appliances.

2. Find A Source For The PV Cells

eBay is a good source for used or blemished cells, but you might also ask the cell manufacturers or contractors that install panels if they have used or damaged units. Be aware that all PV cells are not alike and have different performance ratings

3. Wire The Cells Together

The cells must all be connected together. They may have tabs that simplify this or you will have to wire them together. You will likely need to do some soldering.

4. Construct The Solar Panel

Depending on the size of your system, a single panel may be all you need, but you’ll likely need several. They must be large enough to hold your cell assembly, but hopefully not so large that you can’t carry them up to your roof, or wherever you will be mounting them. Panels can be connected together to form a system of virtually unlimited capacity.

5. Assemble And Install Your Panels

Assemble your solar panel by placing the PV cells inside the panel box. Run wires out through holes in the box. It’s best to cover the unit with Plexiglas. Then test the electrical output in sunlight.

6. Install Your Panels

Most likely, you’ll want your panels to be on your roof, but you can place them anywhere that sunlight is available. If you’re in the northern hemisphere, face them toward the south.

7.Tie your panels into your home’s electrical system.

This is a step you may want to leave to a professional electrician. Wiring will have to be run from the panels and here are some items you will need to complete the project:

* Inverter – to convert power from DC to AC

* Safety shut-offs

* Solar energy monitor, Net meter, and Battery back-up (optional)

You can start out small and expand your solar power system over time. If you generate excess power, you can even sell it to the local power company and start seeing a profit.

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