WASHINGTON — Running late for work or just miss that bus? You could have a good excuse: Your electric clock might be running a bit cuckoo.Because of a change in federal energy regulations, some scientists say your trusty, older plug-in clock may be losing or gaining a few ticks over time.Electric clocks keep time based on the usually stable and precise pulses of the electric current that powers them. In the U.S., that’s 60 hertz (cycles per second). In the past, regulators required power companies to immediately correct the rate if it slipped off the mark. But that precision is expensive to maintain, so last year, the correction part was quietly eliminated by the Federal Energy Regulatory Commission.Energy officials insist other standards will keep the time in check, and so far the problem has not amounted to more than a few seconds here and there. But some scientists looked at what could happen without the time correction rule and concluded clocks could gradually go off-kilter if the grid’s power was delivered consistently at higher or lower rates than 60 hertz. That can happen when power demand surges or slows because of weather and the grid can’t adjust right away.This would… Read full this story
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