In 2014, Operational Intelligence and the Operations team of a global finance service firm achieved an exceptional result. Through energy assessments, data hall temperature measurements and operator education workshops we implemented air management improvements, optimised fan control and gradually increased air and chilled water temperature set points to achieve significant financial savings through reduced energy costs. On top of that we installed an indirect free cooling circuit. This resulted in a PUE reduction, from 2.3 to 1.49, an exceptional result for a legacy data centre. To find about more on the technical details: