BrightSource, which countsAlstom among its key backers, cited challenges in meeting the delivery scheduleand the lack of clarity on needed transmission upgrades as the reasons behindits decision.

The utility Pacific Gas &Edison simultaneously binned its plan to buy power from Hidden Hills, which wasslated for completion in 2015.

Coming less than three monthsafter BrightSource quietly suspended plans for its 500MW Rio Mesa project inCalifornia, the shelving of Hidden Hills further suggests a reining-in of thecompany’s mid-term ambitions amid lingering questions about the futurecommercial viability of CSP.

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