If we can learn how to capture and store just a fraction of the 85,000 terawatts of energy that our sun provides us yearly, we could meet all our energy needs without ever using another drop of fossil fuel. That said, solar energy today supplies far less than 1% of the electricity that we now use.
The engineers and technologists at eSolar, and the company’s key investor, Google, believe they are now ready to build rapidly deployable concentrating solar power (CSP) plants throughout the world. They expect their CSP plants to eventually produce electricity at coal-electricity generated prices.
A concentrating solar power plant uses relatively inexpensive components to generate electricity. The concept behind CSP is easy to understand: Mirrors are used to focus the sun’s heat onto a boiler. This solar heating is intense enough to generate steam, which spins an electric generator to produce electricity.
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