Popular Internet engine Google has invested $168 million to help complete the construction of one of the world's biggest solar energy power plants in the state's Mojave Desert.
The plant, Ivanpah Solar Electric Generating System, which is being developed by BrightSource Energy, will generate 392 MW of clean, solar energy when completed in 2013, Google said.
The power would be sufficient to supply power to 85,000 homes a year.
"That's the equivalent of taking more than 90,000 cars off the road over the lifetime of the plant, projected to be more than 25 years," Google's director of green business operations Rick Needham said in a blog post.
The BrightSource investment, which puts the company's investment in clean energy projects to $250 million, makes business sense and will help ensure that one of the world's largest solar energy projects is completed," Needham said.
Meanwhile, the US Department of Energy said it has finalised $1.6 billion in loan guarantees to support the Ivanpah Solar Energy Generating System.
"Today's announcement is creating over 1,000 jobs in California while laying the foundation for thousands more clean energy jobs across the country in the future," US Energy Secretary Steven Chu said.
"Through the loan program we are supporting some of the largest, most innovative clean energy projects in the world, and those investments are helping us to out-compete and out-innovate
President Barack Obama's administration has been encouraging companies to invest in green growth, calling it a new source of jobs and fearing that other nations -- led by China -- are stealing the march.
The Ivanpah project uses mirrors called heliostats to focus the rays of the sun onto a solar receiver on top of a tower. Steam generated by the solar receiver spins a turbine and generator to make electricity.
The Ivanpah Power Tower will be 450 feet (137 meters) tall when it is completed and will use more than 173,000 dual-mirror heliostats.
The project is being built by US engineering giant Bechtel and construction began in October 2010.
BrightSource received more than $1.37 billion in loan guarantees from the Department of Energy last year to support the construction of three solar power plants.
The first plant was set to be operational by 2012, though Google said on Tuesday it is now scheduled for 2013. Ivanpah is also financed by NRG and is being constructed by Bechtel.
Last week, Google announced plans to invest about $5 million in a solar photovoltaic power plant in Germany.
