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Allan,<br>
<br>
Same here, some parasitic loads are necessary- answering and fax
machines need to stay on.<br>
<br>
I want to add my off grid clock experience to the mix. <br>
<br>
When I went off grid in 1997, I switched all my clocks to battery
units. I love 'em! <br>
Wall clocks, desk clocks and best of all, my alarm clock that runs
for almost 4 years on 1 battery!<br>
The other clock batteries go for 2+ years, can't beat that.<br>
<br>
Oh, I should mention my 1887 Seth Thomas double wind/ 28 day
schoolhouse clock.<br>
Best one of all, although the bio interface used for winding the
clock doesn't always work as it should ;-)<br>
<br>
It's not a clock problem when I don't get somewhere on time.....<br>
<br>
<pre class="moz-signature" cols="72">Roy Butler
NABCEP Certified Solar PV Installer®
NYSERDA eligible PV & wind installer
PA Sunshine Program Approved PV 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 4/6/2011 10:09 AM, Allan Sindelar wrote:
<blockquote cite="mid:4D9C7437.2080703@positiveenergysolar.com"
type="cite">
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Todd,<br>
Come on now! Times have changed. People expect more from their
systems now, and lower module costs make that possible. It's not
the electric clocks per se - it's everything else that we come to
want on all the time, that happens to also have a clock in it. I
don't know anyone any more with a modern system whose inverter
ever goes into sleep mode. <br>
<br>
With three teenagers who have grown up in the digital age, rural
wireless, all the electronics, my off-grid home has about an 80W
continuous tare load. Maybe ten years ago (kids were small), we
had no tare in the winter, but even then it never went to sleep.
And we let all or most of the phantom loads stay on during the
rest of the year when we have an excess of PV energy. <br>
Allan<br>
<br>
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<font face="Times New Roman, Times, serif"><b>Allan Sindelar</b></font><br>
<small><a moz-do-not-send="true"
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<span style="font-size: 10pt;">NABCEP Certified Photovoltaic
Installer<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
<b>Positive Energy, Inc.</b><br>
3201 Calle Marie<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
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<br>
On 4/4/2011 8:46 PM, <a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</a>
wrote:
<blockquote cite="mid:1301971605.547319350@192.168.4.58"
type="cite"><font size="4" face="arial">I wasn't going to say
anything, but electric clocks off-grid? really???<br>
<br>
Todd<br>
<br>
<br>
<br>
On Monday, April 4, 2011 6:20pm, "Kent Osterberg" <a
moz-do-not-send="true" class="moz-txt-link-rfc2396E"
href="mailto:kent@coveoregon.com"><kent@coveoregon.com></a>
said:<br>
<br>
> Kris,<br>
> <br>
> Even with generators using an electronic governor, the
frequency changes<br>
> with load. Also while inverters are stable their
frequency is not as<br>
> accurate as utility power. Clocks that use the ac
frequency as the time<br>
> standard will not work reliably when powered with
off-grid power. Such<br>
> should be disclosed in any contract to install an
off-grid power system.<br>
> <br>
> Kent Osterberg<br>
> Blue Mountain Solar<br>
> <br>
> <br>
> Kristopher Schmid wrote:<br>
> > I have an off-grid client who tells me that his
clocks lose about 1 minute<br>
> > per hour while he is running his backup generator.
Has anyone seen this<br>
> > before? Do clocks use the zero crossing on a 60Hz
wave for keeping time and<br>
> > could a frequency discrepency in the generator cause
this?<br>
> ><br>
> > My thanks to the brain trust...<br>
> ><br>
> > Kris<br>
> ><br>
> > Legacy Solar, LLC<br>
> > 864 Clam Falls Trail<br>
> > Frederic, WI 54837<br>
> > 715-653-4295<br>
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