Burbank's ESolar Company Picks Up $22M for Concentrated Solar For Oil and Gas Markets

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eSolar, the Burbank, Calif.-based builder of power-tower solar thermal technology, just raised $22 million led by Oak Investment Partners. Existing investors include Idealab, GE Energy and Google.org. GE purchased a stake in the startup in 2011. The company has raised close to $200 million since its founding in 2007.