In Vattenfall’s central control room, human operators aided by algorithms monitor the electricity grid, and the market, to judge whether their pumped hydro plants ought to be generating or pumping. Kühne adds that the frequency of alternating…

In Vattenfall’s central control room, human operators aided by algorithms monitor the electricity grid, and the market, to judge whether their pumped hydro plants ought to be generating or pumping. Kühne adds that the frequency of alternating…