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I saw this as well, came over the AP news wire on Friday, June 24th.<br>
I've been trying to figure out what they hope to gain by allowing
more<br>
frequency variation.....puzzling at best!<br>
<pre class="moz-signature" cols="72">Roy Butler
NABCEP Certified Solar PV Installer®
NYSERDA eligible PV & wind installer
Four Winds Renewable Energy, LLC
8902 Route 46
Arkport, NY 14807
607-324-9747
<a class="moz-txt-link-abbreviated" href="http://www.four-winds-energy.com">www.four-winds-energy.com</a>
Although no trees were killed in the sending of this message,
a large number of electrons were terribly inconvenienced.
</pre>
<br>
On 6/26/2011 1:31 PM, North Texas Renewable Energy Inc wrote:
<blockquote cite="mid:GPEJJFPLCDGEDNGDFOOFMEIICOAA.ntrei@1scom.net"
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<p class="byline"><span class="890525516-26062011"><font
face="Arial">This article in the local paper sounds a
little like potential trouble for grid connected
inverters. I looked around on the NERC www site without
finding the report mentioned. </font></span><span
class="890525516-26062011"><font face="Arial">Any other
wrenches seen anything about this experiment?</font></span></p>
<p class="byline"><span class="890525516-26062011"><font
face="Arial">Jim Duncan</font></span></p>
<p class="byline"><font face="Arial">By Seth Borenstein<span
class="890525516-26062011"> </span>The Associated Press</font></p>
</div>
<blockquote dir="ltr" style="margin-right: 0px;">
<div class="OutlookMessageHeader" dir="ltr" align="left"><span
style="font-size: 11pt; color: rgb(31, 73, 125);
font-family: 'Calibri','sans-serif';"><o:p>
<p>WASHINGTON -- A yearlong experiment with the nation's
electric grid could mess up traffic lights, security
systems and some computers -- and make plug-in clocks
and appliances like programmable coffee makers run up to
20 minutes fast.</p>
<p>"A lot of people are going to have things break, and
they're not going to know why," said Demetrios Matsakis,
head of the time service department at the U.S. Naval
Observatory, one of two official timekeeping agencies in
the federal government.</p>
<p>Since 1930, electric clocks have kept time based on the
rate of the electrical current that powers them. If the
current slips off its usual rate, clocks run a little
fast or slow.</p>
<p><span ccix:annotation="insertion">Power companies now
take steps to correct it, keeping the frequency of the
current as precise as possible.</span></p>
<p>The North American Electric Reliability Corp., which
oversees the U.S. power grid, is proposing an experiment
that would allow more frequency variation without
corrections, according to a June 14 company presentation
obtained by The Associated Press.</p>
<p>The test is tentatively set to start in mid-July.</p>
<p>Tweaking the power grid's frequency is expensive and
takes a lot of effort, said Joe McClelland, head of
electric reliability for the Federal Energy Regulatory
Commission.</p>
<p>"Is anyone using the grid to keep track of time?"
McClelland said. "Let's see if anyone complains if we
eliminate it."</p>
<p>No one is quite sure what will be affected. This won't
change the clocks in cellphones, GPS or even on
computers.</p>
<p>But wall clocks and those on ovens and coffee makers --
anything that flashes "12:00" when it loses power -- may
be a bit off every second, and that error can grow with
time.</p>
<p>VCRs or DVRs that get their time from cable systems or
the Internet probably won't be affected, but those with
clocks tied to the electric current will be off a bit,
Matsakis said.</p>
<p>According to the June presentation, East Coast clocks
may run up to 20 minutes fast over a year, but West
Coast clocks are only likely to be off by eight minutes.
In Texas, it's only an expected speedup of two minutes.
</p>
<div style="border: medium none; overflow: hidden; color:
rgb(0, 0, 0); background-color: transparent; text-align:
left; text-decoration: none;"><br>
Read more: <a moz-do-not-send="true" style="color:
rgb(0, 51, 153);"
href="http://www.star-telegram.com/2011/06/24/3178359/test-of-electric-grid-could-be.html#ixzz1QOzHwezw">http://www.star-telegram.com/2011/06/24/3178359/test-of-electric-grid-could-be.html#ixzz1QOzHwezw</a><br>
</div>
</o:p></span><span style="font-size: 11pt; color: rgb(31,
73, 125); font-family: 'Calibri','sans-serif';"></span><span
style="font-size: 11pt; color: rgb(31, 73, 125);
font-family: 'Calibri','sans-serif';"><o:p> </o:p></span></div>
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