You can get some idea of industrial productivity if you can estimate and remove non-industrial loads, perhaps by comparing weekends to work weeks. The dip during working hours and the rise at 4-5 AM are proportional to the total power used, for the same generating capacity.
The business of making up lost cycles on a daily business is not easy for utilities. A year or two ago they proposed to let the system float in order to eliminate failures caused by catching up. Fortunately for timenuts, the proposal did not become practice. Bill Hawkins St. Paul: Money is the root of all evil. Ben Franklin: Time is money. Ergo - Time is the root of all evil. -----Original Message----- From: Tom Van Baak Sent: Saturday, November 16, 2013 9:17 PM ---%<--- We measure mains because we can. We also measure it because millions of wall-clocks are based on mains frequency; it was the original "GPSDO". We measure it because its phase plot, frequency histogram, and ADEV plot are really quite interesting. We measure it because Seattle, WA (tvb) and New Mexico (Kevin) are both on the same grid and mutually agree to 10 microseconds (!) over an hour even though they can both wander by many seconds relative to UTC. It's a textbook example of common view time transfer. See also: http://leapsecond.com/pages/mains/ http://leapsecond.com/pages/ac-detect/ You too can join the mains party. Measure it with your own method, or a fancy TrueTime time/frequency deviation meter (TFDM) or use something simple like a picPET (http://www.leapsecond.com/pic/picpet.htm) or Arduino or even a NTP/Linux/serial DCD pin hack. /tvb _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
