WRITTEN BY : HARRY MENEAR

In 2015 , the total energy consumed by the global data centre industry totalled approximately 189 terawatt hours , with traditional enterprise and colocation data centres accounting for the lion ’ s share ( 97.62 TWh ) of that consumption . While global data centre capacity has grown significantly each year - especially across APAC - the 2021 total estimated energy consumption of the data centre industry equalled 189 TWh . Despite adding Gigawatts of capacity each year , the aggregate power consumption in the industry has managed to remain essentially flat , as it increasingly transitions towards a cloud-centric model built around massive hyperscale campuses . These campuses leverage economies of scale and , most importantly , cutting edge innovations in hardware ( from liquid cooling and renewable power to more efficient and powerful server designs ) to flatten what could otherwise be an exponentially rising curve .

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