Solar Panel is the array of Solar Cells and a solar cell is a device that convert sunlight directly into electricity.Solar cells are classified into tree generation.Solar cells are often electrically connected and encapsulated as a module. PV modules often have a sheet of glass on the front (sun up) side, allowing light to pass while protecting the semiconductor wafers from the elements (rain, hail, etc.). Solar cells are also usually connected in series in modules, creating an additive voltage. Connecting cells in parallel will yield a higher current. Modules are then interconnected, in series or parallel, or both, to create an array with the desired peak DC voltage and current.
The power output of a solar array is measured in watts or kilowatts. In order to calculate the typical energy needs of the application, a measurement in watt-hours, kilowatt-hours or kilowatt-hours per day is often used. (wikipedia)
Google's green-energy plan
Google complete solar energy project in June 2007 to flow the Google's green-energy plan . in this project thay committed to helping to build a clean energy future. Google's green-energy plan goes by the formula-like name RE>c
Google installed 9212 solar panels at its Silicon Valley headquarters that will rank as the largest U.S. solar-powered corporate office complex . This is a 1.6MW solar system that produce about 8000 kilowatt-hours of electricity in 24 hours. This amount of electricity is enough to power 30% of Google's peak electricity demand in our solar powered buildings at our Mountain View, CA headquarters.
“This is the largest customer-owned solar electric system at a corporate site,” said Noah Kaye, director of public affairs at the Solar Energy Industries Association, an industry group based in Washington, D.C.
According to Robyn Beavers, the director of environmental programs at Google. Google intends to generate 50 megawatts of electricity from renewable forms for its operations by 2012.
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