UPS Efficiency Yields Big Savings for Data Centers

June 30, 2014 By Karen Henry

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GE’s Critical Power business recently released a white paper, UPS Efficiency—Why Energy Efficiency Numbers Add Up,” which focuses on the benefits of improved data center and uninterruptible power supply (UPS) efficiencies.

A conventional double conversion UPS system has a typical power-efficiency rating between 92 and 94 percent, according to the white paper. Switching to the new generation of multi-mode or eco-mode UPS power conversion technologies can result in efficiency gains. These technologies, including GE’s eBoost technology, switch in milliseconds, as needed, between a premium efficiency mode (multi-mode) and a double conversion (rectifier/inverter) power protection mode.

A typical 10 MW data center running a GE eBoost technology-enabled UPS for 10 years at 96.5 percent efficiency, for example, can save an estimated $3.4 million, compared with a traditional double conversion UPS operating at 93 percent efficiency.

According to a study by Frost & Sullivan, raising energy efficiency levels of UPS systems in data centers from 90 to 98 percent can save the United States $3 billion annually in energy costs.

GE launched its Critical Power Business in 2013.

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