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This represents an untapped natural resource that is only now being harvested. Photovoltaics (solar cell) is the field that strives to develop this energy resource. Typical polysilicon (multi-crystalline) solar modules have efficiencies around 14%.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.