Facebook likes renewable energy as it flicks switch on green data centre
Luleå data centre in Sweden running completely on hydro power claims high levels of energy efficiency
Facebook has shared news that its latest and potentially greenest data centre went live this week, boasting renewable energy supplies and an impressive energy efficiency rating.
Located on the edge of the Arctic Circle, in Luleå, Sweden the new data centre is powered by locally generated hydro-electric energy and uses natural free cooling from the outside air rather than energy intensive air conditioning units.
Facebook said the hydropower plants were reliable enough to allow it to remove most of its backup capacity for the site.
In addition, the devices inside the data centre are based on so-called "vanity-free" hardware designs - they focus more on efficiency than aesthetic value, meaning they can cut out waste by eliminating the need for unnecessary pieces of metal and plastic.
"All this adds-up to a pretty impressive power usage efficiency (PUE) number," said Facebook on its website. "In early tests, Facebook's Luleå data centre is averaging a PUE in the region of 1.07. As with our other data centres, we will soon be adding a real-time PUE monitor so everyone can see how we are performing on a minute-by-minute basis."
PUE stands for Power Usage Effectiveness (PUE), a widely used industry metric that details the amount of energy used to power IT equipment in a data centre, as opposed to provide cooling and other support functions.
The news was welcomed by Greenpeace, as a sign Facebook is committed to curbing the impact of its businesses, and 'unfriending coal'.
"Facebook, Google, and other major Internet cloud companies like Apple, Salesforce, and Rackspace are fast moving and fast growing, but they have heard from their customers that renewable energy is important to them, and have committed to grow in that direction, " said Greenpeace senior IT analyst Gary Cook.
"These companies are building their data centres with clean energy in mind, which sends a clear signal to utilities and government officials that renewable energy is not only possible, but also smart business in the 21st century economy."