June 22, 2009

Environment friendly Solar power

Renewable energy technologies like wind and solar were the fastest growing new sources of electricity in the World.Electricity may be generated from solar power in two way:
  1. silicon panels
  2. solar thermal
In silicon panels technique ray is direct converted to electricity and in Solar thermal process mirrors used to focus the heat of the sun, creating steam that can drive electric turbines.
The advantages of concentrated solar power (or solar thermal, as it's also known) is that utilities can build commercial-scale plants that could potentially replace fossil fuel-powered plants for a lot less money than what it would take to install thousands of distributed solar photovoltaic panels.

The 354-megawatt (MW) Solar Energy Generating Systems plant in California's Mojave Desert is the largest such solar installation in the world, and last year the Spanish company Acciona built a new 64-MW plant outside Las Vegas. The vast, sun-soaked desert of the American Southwest has tremendous solar thermal potential — by one estimate a single, massive plant 100 miles on each side could supply enough electricity for the entire country. Granted, that's a big patch of land — but it's not much to power a nation.

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