yesterday nasa zambales ako, black out din sa southern parts. well i first noticed it when we were at cabangan already and the lights were out all the way to subic. did not notice it at sbma, may mga power generators sila.

ganyan talaga ang protection features ng isang power grid. if the load goes more than 100% it will automatically lower the load by switching off sections (service stations, where you have the transformer farm). OR if a power station (generator) falls off line or goes out of sync (due to some problems internally) it will kick out that power station from the grid. if that happens and the load goes above 100% and the other generators will be overloaded before the load can be lowered then the safety features in the power station will automatically cause the power station to go off line to prevent it from overloading. that is the most probable reason why 6 power stations went off line and several service stations were cut off, to prevent the power stations from damage and to lower the load on the generators that are still on line.