The NSW Office of Environment and Heritage (OEH) developed a rating system for data center energy efficiency called NABERS, with the help of a technical working group including Fujitsu. The working group spent a year devising a methodology to accurately measure data center energy use. The resulting six star rating system provides transparent information to customers on a data center's environmental impact and efficiency compared to industry standards. Fujitsu received high NABERS ratings for its data centers and has been a leader in adopting the system.