The company has previously said its goal is to triple the amount of renewable power it uses by 2025, and claimed before this deal that about a third of its operations were powered by clean energy. As Recode reports, Google is calling this the largest purchase of its kind from a non-utility company, and is coming as President Obama meets with world leaders in Paris for a historic summit on climate change. A few days ago, ahead of the talks, Bill Gates and Mark Zuckerberg also announced plans for a clean energy research fund.