Google, the world’s most popular internet search engine, has invested $168 million into a solar farm – to be added to the $1.6 billion from the US government. A solar farm, that is, unlike most domestic generators of solar energy in that the site is huge. and looks set to be an indication of the future. Situated in the Mojave Desert, the Ivanpah Solar Electric Generating System (ISEGS) will be completed in 2013 (work started in October last year) and will be able to boast of 173,000 heliostats that concentrate the sun’s rays onto a solar tower. The towers (three, in total, on the site) will stand about 137 m (450 Ft.) tall and are expected to generate 392 MW of energy – enough to serve more than 140,000 homes in California during the peak hours of the day.
BUT HOW DOES IT ALL WORK?
The whole system works by mirrors turned to catch the sun and then focusing that power onto solar receivers. The ISEGS complex will reduce CO2 emissions by more than 400,000 tonnes a year and is set to be the example and prototype for many more such super solar farms worldwide. While it is the first such project in the United States, similar projects have been announced in other countries. The most notable of these is in Inner Mongolia in China where a facility is being built near Ordos City and will eventually be capable of producing 2.2 GW of energy – although the project will not be completed until 2019 when full capacity is reached.
The ISEGS project has found its site four and a half miles to the southwest of the town of Primm in California – unremarkable to most and unheard of by many outside of California, but now notable for its proximity to the Ivanpah solar power plant. The project is named after the Ivanpah dry lake near its location and the whole venture is being masterminded by the company BrightSource Energy (www.brightsourceenergy.com). Unlike nuclear power plants, any accidents will not have a hugely disastrous impact on the surrounding area.
This is not the first time that Google have invested in start-up renewable energy plans. Last year, the company invested $38.8 million in a wind farm – but the Ivanpah plant is its largest and most ambitious investment to date.
Until now, Europe has laid claim to most of the world’s solar farms – there are several in Spain, for example – but with companies like the US-owned First Solar rapidly expanding, perhaps this venture will truly become worldwide as people learn to rely more on solar power and less on fossil fuels. Solar power, unlike coal and natural gas deposits deep underground, is highly unlikely to run out any time soon.
Posted under Environmental News, News
This post was written by Katherine Quinn on April 19, 2011
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