pv solar roof
Most people opt to go solar for two reasons – one to save money and second to save the environment. As such they want the best possible deal for their money, while still helping to keep the environment green. As all environmentalists know, it is best to reuse products to derive the maximum possible mileage from them. So there is no harm in buying a used solar panel.
Another reason why it makes sense to buy used solar panels is that they retain 90 per cent of their ability to convert light energy into electricity even after 20 years. This means that used and old solar panels are as good as the new ones when it comes to output power. The only possible difference is that the older panels are not as sleek as the new ones. Older panels also occupy more space for the same amount of electricity to be produced.
When comparing solar panels, compare like with like. Calculate the wattage given per dollar invested and find out which unit on offer is cheaper.
Used solar arrays or single panels come to the market when corporations and industrial houses upgrade their facilities. This is done quite frequently by them. They then sell the old panels to resellers who market the used solar panels.
You can get quite inexpensive solar panels on eBay or other used products markets. You have to check a few things before you purchase used solar panels. Compare the wattage delivered or generated per dollar of your unit. The used ones should be at least 25 per cent cheaper per wattage than the new ones.
Also, older solar panels occupy more space than the compact new ones. Check your roof and ensure that you have adequate space for a set of old panels on your roof.
Also, ensure that there is no damage to the old solar panel you are buying. Check for any defects before you pay up. Check the bypass diode and ensure that it is not burnt. If it is ask for a discount and buy a new diode to replace it with.
Older panels have a plastic substrate that turns brown after use. This, however, does not reduce the electricity output. So, you should not worry too much about this when you are buying a used one.
Another reason why used solar panels are sold is a loose connection between the PV cells. You can fix this easily by soldering. So, it too does not pose a great problem and should not deter you from buying the panel.
Next time you hear about a sale, go ahead and check it out. You will save yourself a lot of money while at the same time going solar. This way you will help the ecology and environment in two ways – by reusing an old product and by using a renewable resource to produce electricity. Going solar is a wise option for those who want to save money and using used solar panels is the wiser option.
A. Jollands is a renewable energy advocate and a supporter of sustainable development. If you’d like more information on renewable energy, including how you can reduce your power bills using solar power at a fraction of the normal cost, be sure to check out Free Electricity Answers.
Or, if you want to jump straight to the Solar Energy Advantages page, just click the magic words!
Have a good day, all the best, A. Jollands
PV Solar (Off-Grid)
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2008 Solar Power! Photovoltaics, Solar Cells, Roof Panels, Heating, Lighting, Concentrating - Complete Guide with Practical Information and Government Research (Two CD-ROM Set)
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