<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">I'm well aware of load creep. After installing a 6kW off-grid system I went out to a site to diagnose performance issues. The owner had purchased a six-seat electric golf cart and was charging it off the inverter. I had to bite my lip to avoid hysterical laughter over this "small" unmentioned load.</div>
<div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">The golf cart had eight T-105's and the house battery was sixteen S-530's. The owner didn't believe that the golf cart battery had over 25% of the house battery capacity.</div>
<div><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">That was an expensive mistake (for him).</div><div><br></div><div><div class="gmail_default" style="font-family:verdana,sans-serif">I like the idea of listing estimated consumption somewhere, but I don't want to become contractually bound to supply or store a certain amount of energy. Performance guarantees are tough, especially when you are not the operator.</div>
</div><div><br></div><br><div id="WISESTAMP_SIG_gmail_session"><div style="font-size:13px;font-family:Verdana,Arial,Helvetica,sans-serif"><div style="margin:0 0 8px 0"><p style="margin:0"><span><span>Jason Szumlanski</span></span></p>
<p style="margin:0"></p><div class="gmail_default" style="font-family:verdana,sans-serif;display:inline">Fafco Solar</div><br> <p></p><div style="clear:both"></div></div><img src="https://wisestamp.appspot.com/pixview.gif?p=chrome&v=3.31.0&t=1390331074468&u=ce9344a8140ce271" width="1" height="1"></div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jan 21, 2014 at 12:26 PM, Dan Fink <span dir="ltr"><<a href="mailto:danbob88@gmail.com" target="_blank">danbob88@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I also see lots of "load creep" Ray...."oh, forgot to tell you....we need to add some all-night LED area lighting to the system. It won't use much power......"<div class="gmail_extra">
<span class="HOEnZb"><font color="#888888">
<br clear="all"><div>Dan Fink<br><br> </div>
<br><br></font></span><div class="gmail_quote"><div class="im">On Tue, Jan 21, 2014 at 10:22 AM, Ray Walters <span dir="ltr"><<a href="mailto:ray@solarray.com" target="_blank">ray@solarray.com</a>></span> wrote:<br>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">
<div bgcolor="#FFFFFF" text="#000000">
<div>On these small projects, its very
important to nail down the exact load, to keep the pricing sane.
I list on the estimate what the system is designed to do; for
instance 18 w load 24 hrs/ day. Then if something goes wrong and
they are running more than they should you just gently point out
that that was not what the system was designed to do.<br>
I learned a long time ago, that you can't take name plate power
draw numbers, or count on the manufacturer to provide those
numbers; you've got to confirm it with your own monitoring
equipment.<br>
<pre cols="72">R.Ray Walter
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
<a href="tel:303%20505-8760" value="+13035058760" target="_blank">303 505-8760</a></pre></div><div><div><blockquote type="cite"><pre></pre></blockquote></div></div></div><br></div><div class="im">
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