Back to All Media Hao Zhu Warns of Grid Instability From Data Center Power Fluctuations Hao Zhu was quoted by the Boston Herald warning that data centers can challenge electric grids not just by increasing demand, but also by introducing rapid power fluctuations that can be destabilizing to the grid. Share Article Hao Zhu was quoted by the Boston Herald warning that data centers can challenge electric grids not just by increasing demand, but also by introducing rapid power fluctuations that can be destabilizing to the grid.