DigInfo - movie.diginfo.tv In the search for alternative energy Clean Venture 21 have developed a new spin on solar. Their Spherical Silicon Solar Array are made from silicon spheres 1mm in diameter which sit in a reflector which is 2.2 to 2.7mm in width. The sphere catches and stores the incidental light on its n-Si (or sphere surface) and transfers it to the p-Si (its internal sphere) which is in turn connected to a p-electrode. Clean Venture 21 also utilizes traditional flat-type arrays as well. "These cells here are in a 5cm x 15cm formation- each individual cell has a 1mm silicon ball inside it and it has an overall efficiency conversion rate of about 10%. In other experiments we have had efficiency rates of about 12%. Very soon we'd like to achieve 13 to 14% rates." The benefits of their Micro condensing type spherical silicon solar array is that it's 5 times cheaper to make, uses 5 times less material, and requires half the energy to reproduce than its contemporaries.
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