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<div class="moz-cite-prefix">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 class="moz-signature" cols="72">R.Ray Walter
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
On 1/21/2014 6:07 AM, Jason Szumlanski wrote:<br>
</div>
<blockquote
cite="mid:CAJJtG3rrGC2gsd0pdrjj2ASZOW2LV2F3N5fKAOnnJ2eC0v1Fow@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_default"
style="font-family:verdana,sans-serif">That's the answer I
thought I'd get from most. It's hard to explain the "days of
autonomy" and extended bad weather to people. Most just say,
"why don't you just make a recommendation." That puts me in a
spot where I want to overbuild, which drives up cost.</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif">The other challenge is
getting people to tell you the real story about what they plan
to plug in. They think 100W @ 120V continuous load 24 hours a
day sounds like a very small load. When you hit them with a
~1kW system with a ~10kWh battery (with ample reliability
factors considered), they freak out. Then you find out that
the camera they wanted to plug in only draws 18W @ 12V (no
inverter required). That's a big difference.</div>
<br>
<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 </span></span></p>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Mon, Jan 20, 2014 at 3:46 PM, Larry
Crutcher, Starlight Solar Power Systems <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:larry@starlightsolar.com" target="_blank">larry@starlightsolar.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">Jason,
<div><br>
</div>
<div>We get quite a few of these from US Border Patrol, GM
Proving Grounds and other agencies. I always do custom
design since every job has different parameters like
days of autonomy or remote monitoring/control (SCADA).<br>
<div><br>
<br>
Larry Crutcher<br>
<div><br>
<br>
<br>
</div>
</div>
<br>
<div>
<div>
<div class="h5">
<div>On Jan 20, 2014, at 1:17 PM, Jason Szumlanski
<<a moz-do-not-send="true"
href="mailto:Jason@fafcosolar.com"
target="_blank">Jason@fafcosolar.com</a>>
wrote:</div>
<br>
<div dir="ltr">
<div class="gmail_default"
style="font-family:verdana,sans-serif">
What do you do for very small off-grid systems
that people want for specific equipment? Do
you have a "go-to" configuration, or do you
size and design everything custom?</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif">For
example, I frequently get, "I want to run
cameras at a remote site and the total
requirement is 100W, 24 hours a day."</div>
<div><br>
</div>
<div>
<div class="gmail_default"
style="font-family:verdana,sans-serif">It's
not economical to reinvent the wheel every
time. </div>
<br>
</div>
<br>
<div class="gmail_default"
style="font-family:verdana,sans-serif">
Jason Szumlanski</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif">Fafco
Solar</div>
</div>
</div>
</div>
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