Ivanpah Solar Plant Owners Want To Burn a Lot More Natural Gas

Ivanpah Solar Electric Generating System | Photo: Penny Meyer/Flickr/Creative Commons License

It's been lauded as the world's largest solar power plant, but the Ivanpah Solar Electric Generating System could also be called the world's largest gas-fired power plant (largest as in physical size, not gas consumption). Each of the 4,000-acre facility's three units has gas-fired boilers used to warm up the fluid in the turbines in the early morning, to keep that fluid at an optimum temperature through the night, and to boost production during the day when the sun goes behind a cloud.

The project's managers, BrightSource Energy and NRG Energy, originally estimated that the plant's main auxiliary boilers would need to run for an hour a day, on average, to allow the plant to capture solar energy efficiently. But after a few months of operation, they're now saying they need to burn more gas, with the boilers running an average of five hours a day.

To that end, the companies have asked the California Energy Commission (CEC) to change the project's license to allow Ivanpah to burn more than 1.5 billion cubic feet of gas a year, and the plant's operators say that change won't have any environmental impact.

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