China is testing quantum technology as a practical tool for keeping its power grid reliable, using quantum sensors, secure communications and computing to detect faults, improve measurements and model grid operations. The project is being positioned as a way to address some of the limits of conventional grid technology. The technology is being used to improve electricity measurement as well. According to the report, the technology could reduce electricity measurement errors at the substation by more than 500,000 kilowatt-hours per year. Quantum computing models outages The Hefei facility is also using quantum computing to simulate possible operating conditions across the power grid.