Google has announced the goal of running its business on carbon-free energy everywhere by 2030 in what the company is describing as its ‘most ambitious energy goal yet.’
The commitment includes all its Google Cloud data centres and campuses worldwide, with the company saying in a statement it was ‘eliminating its entire carbon legacy, effective today.’
Previously, Google said it had become fully carbon neutral – for every kilowatt hour of electricity consumed, a kilowatt hour of renewable energy was purchased – for the first time in 2017.
Yet in a blog post announcing the commitment, Urs Hölzle, Google SVP technical infrastructure, said that was an annual average, meaning that for some data centre sites the company could do better.
“For a particular data centre, at any given time we may have too much renewable power, or too little,” he wrote. “When we have too much, we feed it into the local grid so someone else can consume it. When we have too little, we draw power from the local grid, and that power may not be renewable.”
As part of this goal, current initiatives include a carbon-intelligent computing platform, which enables data centres to work more efficiently for favourable weather conditions. Hölzle also noted the role UK-based artificial intelligence (AI) company DeepMind would play in providing AI-based control of cooling systems in commercial and industrial facilities.
Meanwhile, off the coast of Orkney, Microsoft was revealing the results of its experimental campaign to launch an underwater data centre. As reported by the BBC, Project Natick, which was first conducted in 2018, revealed a lower failure rate than a conventional data centre, with no apparent power issues.
“We are hopeful that we can look at our findings and say maybe we don’t need to have quite as much infrastructure focused on power and reliability,” Spencer Fowers, of Project Natick, told the BBC.
The environmental impact of data centre infrastructure has long been considered, with various sites in Scandinavia – citing cooler natural temperatures – already utilised, as well as being an inspiration for Microsoft’s experiment. Progress has certainly been made; in 2015, Rackspace’s UK data centre campus had a power usage effectiveness (PUE) rating of 1.15, considered ‘almost unheard of’ in a commercial context. In 2018, average PUE per data centre was nearer 0.75.
In March, a paper published in the journal Science posited that cloud computing may not have been the threat to the climate many had feared. While global data centre energy had increased, the researchers wrote, this growth was negligible compared with the rise of workloads during that time. Certain technological benefits, such as greater server virtualisation and the rise of very large ‘hyperscale’ data centres, has helped.
You can read the full Google announcement here.
Photo by Markus Spiske on Unsplash
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