solar energy costs
solar energy costs
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solar energy costs Frequently Asked Questions
Are there hidden environmental and social costs for solar energy?
Solar energy can be captured in several ways and we have hardly begun to tap its potential.
One of the hidden environmental costs also applies to other forms of energy capture and generation - the resources required to build the equipment. The materials (metals etc) need to be mined, transported and subjected to the manufacturing process and there will be environmental costs and resource depletion consequences. This is one of the reasons we need to reduce our energy demands as well as switch to sustainable sources.
Solar energy also has the disadvantage of not being entirely reliable because of cloudy days. This means that there is a need for backup energy generation capacity or energy storage. Again providing the backup or storage will have environmental consequences.
Turning to social costs - switching from one form of energy to another may require social change. People may loose their jobs in fossil fuelled energy generation and have to re-train in the new technology. Scrapping old energy plants and building solar capacity will also impact on the price of energy for consumers. But both of these costs are short term problems and the sooner they are faced the less they will cost.
Overall the conclusion is that we need to reduce our energy demands and switch to a mix of sustainable energy sources in which solar will make an important contribution.
Can I buy solar silicon cells only and assemble my own solar panel made of insulated materials like plywood?
Photovoltaic electricity is becoming one of the best alternarive energy source nowadays but still a little expensive. As ordinary electrice home user and solar power beginner, I am conscious of cost effectiveness. I understand silicon is standard material of solar cell which is just can not be manufactured at home so you must buy it, but can i make my own solar panel made of any insulated materials such as plywood or painted plain G.I. sheets with welded metal frame? Can I used 12v car battery and AVR as charge controller and a low cost bridge rectifier as inverter?
Absolutley, just make sure you include diodes so your batteries don't drain through the panels at night, and make sure everything is watersealed for obvious reasons
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