The strange shaded area in the top left that looks like an amphitheater or modern art installation is BrightSource Energy's project for Chevron in Coalinga, CA. It's an array of mirrors that track the sun to send 60 acres of sunshine to a tower housing a boiler. It's not that efficient (only 45% of the steam energy is converted to electrical power) and is a non-economic project for Chevron to burnish its environmental credentials.
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