Michael Davis, an astronomer from Arizona, has found an inexpensive way to produce electricity that can be used to power a home. He found some damaged and blemished solar cells on eBay, and decided to use them to construct his own solar panels.
Most of us understand the benefits of using the sun to produce electricity. Sunlight is available for free and there is less harm to the environment. Up until now, the main stumbling block has been the cost of solar panels which contain electricity-producing photovoltaic (PV) cells.
Michael found some damaged PV cells on eBay and decided to give them a try by using them to construct his own solar-powered electric generator. Here is what he learned: * Less then perfect cells can still perform efficiently. * They are just a fraction of the cost of new cells. * eBay is a good source for these cells, but they can be found elsewhere as well.
How To Construct Your Own Solar Generator
You can start saving money right now by building your own solar-powered generator. Here are the basic steps:
1. Calculate The Number Of Cells You'll Need
First, decide whether you want enough electricity for your entire home or just a few appliance. I would suggest starting with a small system and expanding it over time.
2. Locate And Purchase Photovoltaic 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. Solder The Cells Together
If the cells are not already connected together, you will need to connect them yourself. This is done by laying them out in the desired pattern to fit into the panel described in the next step. You then use solder and metal strips or wire to join them together.
4. Construct The Solar Panel
The solar panel is a shallow box that holds the PV cells. You'll mostly construct this from wood, but other materials will work. The size is not critical but should be small enough that you can handle it easily.
5. Put It All Together
Place your completed solar cells inside the panel, running the wires out through holes. Then cover the panel with Plexiglas. This will increase their efficiency and make the whole system more weather-resistant. Finally, test the panel under the sun using a multimeter.
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.Hook Your Panels Up To Your House Wiring.
As a final step, you will need to connect the panels to your home's electrical system, or at least to the lights and appliances that you want to run. In addition to wiring, you'll need these items: * Inverter - this device converts power from DC to AC * Electric shut-offs for safety * System monitor and Battery back-up (optional)
Depending on your level of expertise, you may need professional help to complete portions of this project. Then you can begin enjoying the benefits that solar energy offers.
