Apple and other technology companies such as Amazon.com and Microsoft, that build and run computer server farms have come under criticism for their high consumption of electricity and other resources.
These data centers cater to an explosion in Internet traffic, streaming content through mobile devices and hosting of services to corporations.
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The new solar farm will provide power to Sierra Pacific Power's electric grid that serves Apple's data center and when completed will generate about hours 43.5 million kilowatt of clean energy a year, Apple said in a statement.
Apple already runs its largest data center in the U.S. on solar power. The center in Maiden, N.C., produces 167 million kilowatt hours, the power equivalent of 17,600 homes for one year, from a 100-acre solar farm and fuel cell installations provided by Silicon Valley startup Bloom Energy.
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