Provide cached energy in the power grid as a precaution based on energy availability prediction and energy security

摘要

A power management arrangement (100) comprising a selectively energetically-chargeable or dischargeable energy buffering means (130) and a controller (106) arranged to operate from a power grid based on a predictive model of future development of power availability ( 108) and, taking into account a local power supply security criterion, to control an energy-related time-amount characteristic according to which energy stored in the intermediate energy storage device (130) is discharged therefrom and fed into the energy supply network (108).