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<p>It all comes down to how deep the well is, and how much water you
need to pump. For lower head, lower flow rates, just go with the
SQF line. If you need more water, then start looking into the
other options. <br>
</p>
<p>Just as with off grid homes, you need to carefully define the
parameters: depth to water, depth to bottom of well, well
diamater at top and down hole, the actual tested flow rate of the
well, flow rate of the proposed pump, gal per day required summer,
GPD winter. <br>
</p>
<p>This is also one of the rare cases where array tracking might
make sense. In the summer you can start pumping much earlier and
get much more water over the day. Its also easier on a low flow
well to pump a little bit through out the day, than have a big
pump hit it hard a few times a day. <br>
</p>
<pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 7/26/21 10:02 PM, Mac Lewis wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOABG4-itFi6J+iKP2tVRgDNLitjgi5+hDLREAw_LvBCQ4pfpA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hi Howie,
<div><br>
</div>
<div>There are many options for this equipment now. If the well
pump motor is already installed, it may limit your options.
If it hasn't, then there are a lot of good solar pumps
available. Grundfos SQ Flex is solid from our experience. </div>
<div><br>
</div>
<div>There are also drives that can take high voltage solar DC
and drive a pump. These drives are kind of like an inverter
and a high voltage MPPT device. They optimize the PV and try
to drive the pump at the highest rate possible with the
available wattage by varying the motor frequency (no battery
necessary). Despite all of these features, they aren't very
expensive. ABB makes them as do many others but you need to
have someone solid helping you verify that the pump you want
to drive is compatible and what you want to do makes sense.</div>
<div><br>
</div>
<div><a
href="https://new.abb.com/drives/low-voltage-ac/machinery/ABB-solar-pump-drives"
moz-do-not-send="true">https://new.abb.com/drives/low-voltage-ac/machinery/ABB-solar-pump-drives</a></div>
<div><br>
</div>
<div>I'd call ABB and try to get to a smart sperson to help with
this if you go this route. These are more set up for 3 phase
motors than single or split phase. However, its been a while
since I went through the literature.</div>
<div><br>
</div>
<div>Good luck with this</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Jul 26, 2021 at 6:14
PM Jerry Shafer <<a href="mailto:jerrysgarage01@gmail.com"
moz-do-not-send="true">jerrysgarage01@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto">DC Directgrunfus sq flex they have depth, gmp
and voltage options
<div dir="auto">Jerry</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Jul 26, 2021, 3:53
PM Howie Michaelson <<a
href="mailto:Howie.Michaelson@gmail.com" target="_blank"
moz-do-not-send="true">Howie.Michaelson@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="auto">Hi all,
<div dir="auto">I have done no remote well pump system
design. I have a potential client looking for help
driving a remote AC deep well pump with PV. My first
reaction is too say in order to do that, they will
need an inverter and batteries as well as PV and
charge controller. But it occurred to me to ask if
there are simpler ways to accomplish this. I don't
know any more about the situation, but wanted to see
if anyone has idea how to potentially accomplish this
without so much infrastructure before I had any more
conversations with them.<br>
Thanks,<br>
<div dir="auto">Howie Michaelson<br>
Sun Catcher<br>
NABCEP Certified Solar PV Installer\u2122<br>
Solar Electric & Heat Pumps Systems Sales &
Service<br>
802-272-0004</div>
</div>
</div>
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-- <br>
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<div><font face="'times new roman', serif" color="#305A78"><br>
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Mac Lewis<br>
<br>
<span style="font-family:"Times New
Roman";font-size:medium;color:rgb(255,153,0)"><b><font
size="3" face="Arial, Helvetica, sans-serif">
<p align="left"><font face="Verdana, Arial, Helvetica,
sans-serif" color="#000000"><span
style="font-size:small"><span
style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font
face="'times new roman', serif">"Yo solo sé que
no sé nada." </font><span
style="font-weight:700;color:rgb(104,104,104)"><font
face="'times new roman', serif">-Sócrates</font></span></span></span></font></p>
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