Pre NERC there was departure TV and pending strip production which did allow a certain amount of warning
Thats one of the things that baffled me. We still have Departure CCTV (oh the old days in teh darkened room sleeping off hangovers) or DETS as it is now...but only at TC. NERC have no access to it - even during FLOP/SwIMM when it becomes essential. Can anyone explain why NERC don't have access?