very sensitively to outages imagine it like a pair of old scales there's the demand for electricity i mean the sum of all electrical consumers and then there's the supply normally the systems in balance if a power station fails one side becomes lighter while the other becomes heavier my frequency drops off and seeing the other power stations notice that and say ok let's power up a bit to restore the balance and then i get my grid frequency of fifty heads back for the shots. to cause a blackout hackers would have to find a way to switch off as many consumers all produces similar taney a snake with one click. but what do i need in order to bring about the blackout was a this is i'm i have a lot of wind energy and solar energy in the grid that has to be transported i have