[time-nuts] Re: Power line: 15 second drift in one day

[Scott Newell]

At 07:51 AM 6/7/2024, John Vendely via time-nuts wrote:
>As I recall, the western power grid system (WECC) discontinued line 
>frequency regulation for timekeeping purposes some time ago. The 
>eastern grid (EI) still maintains time and, here in Florida, 
>line-operated clocks typically stay within about +/- 15 seconds of 
>my UTC clocks.

That fits with my Memorial Day data collected here in Arkansas 
(eastern grid)--maybe 3.5 seconds vs. Hal's graph showing 15 seconds. 
Graph attached.

-- 
newell  N5TNL
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