Power grid change may disrupt clocks
The group that oversees the U.S. power grid is proposing an experiment would allow more frequency variation than it does now without corrections, according to a company presentation obtained by The Associated Press.
In the future, more use of renewable energy from the sun and wind will mean more variations in frequency on the grid, McClelland said. Solar and wind power can drop off the grid with momentary changes in weather. Correcting those deviations is expensive and requires instant backup power to be always at the ready, he said.
Almost every cheap AC powered alarm clock for the last 30 years has an LM8560 or similar chip that uses the AC signal as the timebase with most having a crappy RC based timer when on battery backup. Somebody really needs to rethink this experiment.