Quote:
Originally Posted by ottavio
Forgive my ignorance, but.. what's the problem? Electric clocks are not meant to be accurate.
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They were (are still?) meant to be accurate over a 24Hr period. Indeed, power station control boards had a special clock comparing a radio-derived time signal with the time determined by the mains frequency.
Any lag during peak loading was meant to be compensated for during light loading. But, as has been pointed out, the generating system is not what it once was with the likes of wind turbine contribution; solar; feed-in, etc... It may be when the latest generation of 'peaker' plants gets going to fill in the shortfall the accuracy will improve.