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We constantly evaluate the energy efficiency of our data centers, and we’re quick to adopt proven energy-saving technologies or techniques on a global scale. For instance, systems that reduce power use by actively monitoring air flow are becoming standard technologies in our data centers. So are controls that optimize cold aisle temperature, chiller efficiency, chilled water flow and modern lighting systems. These and other green operational practices have helped us avoid using about 10,000 kilowatts annually—enough to power more than 15,500 UK households for a year. To help us conserve even more energy in the coming years, we’ve set a target of 1.45 or lower for our design average power usage effectiveness (PUE), putting our new data centers on an aggressive path for efficiency improvement.







