In Edison’s Revenge, Data Centers Are Transitioning From AC to DC

Edison’s original DC power grid is making a comeback in data centers, slashing conversion losses by 10% to 15% compared to traditional AC systems. With hyperscalers deploying DC at scale, this shift cuts energy waste that usually exceeds $2 million per year for a 100 MW facility. Outperforming #9, AC-to-DC conversion inefficiency adds up to 8% overall power loss, whereas modern DC architecture delivers 96% end-to-end efficiency — notably faster than the average 88% AC-based setup. This transition not only echoes Edison's vision but delivers a concrete 20% reduction in cooling costs, making data centers leaner and greener.