Early Thursday morning, Google announced it was investing $103 million in Mount Signal Solar, a plant which claims its finished project will source enough energy for about 80,000 homes on the San Diego Gas & Electric line. In a blog post, Kojo Ako-Asare, head of corporate finance at Google, said Google was "celebrating Halloween early with [their] 'lucky thirteenth' renewable energy investment."
Google has now invested more than $1 billion in renewable energy. In 2011, the enterprise pledged $168 million to BrightSource Energy for the Mojave Desert-based Ivanpah Solar Electric Generating System, which was slated for completion in 2013. Though, according to Ivanpah's website, the mirror-reflecting panels are still in the testing phase. (In September Ivanpah reached a milestone of synching the power grid with the station; this was their first output of energy.)
Speaking on behalf of Google, Ako-Asare said, "We invest in these projects because they make business sense, because they help put more renewable energy on the grid, and because they have a positive impact on the local economies where they operate." Coincidentally, both of Google's most recent and largest energy investments seem to benefit Californians, the state that Google calls home.