Google makes huge investment in clean energy, with 15 wind and solar investments totaling more than $1 billion.

"We've invested over a billion dollars in 15 projects that have the capacity to produce two gigawatts of power around the world, mostly in the U.S., but that's the equivalent of Hoover's Dam worth of power generation," said Rick Needham Google's director of energy and sustainability, standing along Google's solar arrays at its headquarters in Mountain View, Calif..."
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