Following data centre redesigns and upgrade projects, energy consumption at our data centres decreased by 14% in 2013 despite increasing online delivery of our products and services. Total energy consumption decreased by 10% against 2012, due in part to a 7% reduction in office energy through continued space consolidation and reduction efforts by the global real estate team. In the year, approximately half of the electricity assigned to our data centres was classed as renewable energy. We are listed as a Green Power Partner by the US Environment Protection Agency.
We realise the challenge in reducing absolute energy usage while continuing to grow our business, and therefore have set targets to increase renewable energy usage. In 2013, we purchased 40% of our electricity from renewable sources compared with 33% in 2012. Read more in the 2013 Corporate Responsibility Report