A South Korean startup is deploying diamond-based quantum sensors to solve one of the data center industry’s most persistent problems: knowing exactly where, when, and why electricity is being wasted.
xDots has developed xEnergy, an energy management platform that combines a diamond nitrogen-vacancy (NV) quantum sensor called xSee with an AI analysis engine and a real-time dashboard. Unlike most quantum technologies that require extreme cooling, NV-center sensors operate at room temperature, making them practical for industrial environments ranging from refrigeration plants to server halls.
The sensor exploits a tiny defect in diamond, a carbon atom replaced by nitrogen adjacent to an empty lattice site, that gives the material unique sensitivity to magnetic fields and electric currents. The system achieves measurement precision of ±0.01 percent, capturing subtle electrical fluctuations that conventional sensors miss.
“What this means is that you will be able to experience the energy-saving effects anywhere with high power consumption, including large-scale manufacturing plants, data centers, dense office areas, and public facilities,” said Woodo Lee, CEO and founder of xDots.
The xEnergy system works in three layers: xSee continuously measures current, magnetic fields, and energy flow across a facility; xMon provides real-time visualization; and xOpt, the AI engine, analyzes the data to recommend optimized operating schedules and equipment settings. Critically, the system identifies specific wasteful cycles rather than simply reducing power across the board, preserving productivity while cutting consumption.
In proof-of-concept trials, xDots demonstrated 15 to 30 percent energy savings in refrigeration and freezing facilities, confirmed savings in predictive maintenance for industrial pumps, and is now deploying an HVAC optimization solution commercially. At Quantum Korea 2026, the company demonstrated real-time DC current measurement and rapid change detection during power switching.
The approach represents a milestone for quantum technology commercialization. While quantum computers remain largely experimental, quantum sensors are already deployed in real-world applications, and energy efficiency is proving to be a compelling first market. For data center operators facing soaring electricity costs driven by AI workloads, the ability to pinpoint waste at circuit-level granularity could translate into significant operational savings.
Sources: A diamond quantum sensor can pinpoint exactly where power gets wasted in a data center (Interesting Engineering, July 4, 2026)