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<p>HI Ken;</p>
<p>Don't tell me, but you probably still have a copy of <i>The
Passive Solar Energy Book</i> on your shelves, with those nice
old solar siting charts? <br>
</p>
<p>Those of us lucky enough to have been in the business for decades
have been confronted with Ken's little considered fact: <b>Trees
grow</b>. I went back to a site I had done in '99, and was
amazed I was so stupid to put the array in the shade of a 30 ft
tree. That must have been before I got my Solar Pathfinder, I
thought......Then I started looking at the tree and my old pics of
the site, and realized that tree was only about 5 ft tall, when I
did the system. As Homer Simpson says: " <i>Douhh!</i> "</p>
<p>On the flip side, beetle kill in the Southwest has had the
opposite effect; arrays that were on tall poles to get above the
tree shading are now rather ridiculous looking sitting out by
themselves in the now large clearing.</p>
<p>While I certainly didn't go into solar to cut down trees,
sometimes it needs to happen along with clearing trees close to
the house for fire danger. I do my best to get folks to move the
array to save the big beauties. (yea, I'm a tree hugger at heart)
Higher voltage arrays courtesy of MPPT controllers help in that
regard, too.<br>
</p>
<pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 9/3/18 12:26 PM, Ken Schaal wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAEd52_Ngayi9RSsw7Kttmga6A7Pv5Aptj6B9C_8eesi_SoCM+A@mail.gmail.com">
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<div dir="auto">I started siting SHW systems in 1976.
<div dir="auto">Studied sun angle chart persistently, until i
had a good sense of how the sun moves for our area in central
Virginia.</div>
<div dir="auto"> We also have lots of trees...fast growing,
tall trees !</div>
<div dir="auto">So while precision shading analysis is a
valuable tool, the info is static.</div>
<div dir="auto">Our sites are rarely static !</div>
<div dir="auto">The biggest issue here is getting clients to
manage their trees.</div>
<div dir="auto">I learned this even before I started installing
SHW, when I first built a sunroom on the south side of my
house in 1974.</div>
<div dir="auto"> Many trees have grown, and then become
firewood, since then.</div>
<div dir="auto">When the pv system was installed, in 2008,
several more trees on the east and west were
removed.Fortunately there were now taller trees to the NE and
NW to shade house in summer. Exterior movable shading,
sunscreen, on south windows, combined with interior
insulating shades, allowing the collectors and pv panels to be
in full sun, while the house is protected from unwanted
spring, summer, fall solar gain.</div>
<div dir="auto">Being a full service solar contractor requires a
long term perspective in our climate. And most importantly,
clients willing and able to manage their trees !</div>
<div dir="auto">It has been my observation that folks that love
solar, hate to cut trees, even tho trees, in our climate, grow
faster now due to climate change.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Ken Schaal</div>
<div dir="auto">CommonWealthSolar.com <br>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
<div class="gmail_quote" dir="auto">
<div dir="ltr">On Mon, Sep 3, 2018, 12:45 PM Dan Fink <<a
href="mailto:danbob88@gmail.com" rel="noreferrer
noreferrer" target="_blank" moz-do-not-send="true">danbob88@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">I use Solar Shading from Comoving
Magnetics on Android. I had my class test it versus
the Solar Pathfinder and Solmetric Suneye, and our
shading readings were within 6-8%.
<div><br>
</div>
<div>The Solmetric Sunviewer app is also handy. I have
never tried their iPV app because of the price, and
because Solar Shades is working fine for me.</div>
<div><br clear="all">
<div>
<div dir="ltr"
class="m_-1920696454644942483m_1362605780515453638m_1438304797335900902gmail_signature"
data-smartmail="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div><span
style="font-size:12.8px">Dan
Fink</span>
<div
style="font-size:12.8px">Professor
of Solar Energy
Technology, Ecotech
Institute</div>
<div
style="font-size:12.8px">IREC
Certified Instructor\u2122
for: </div>
<div
style="font-size:12.8px">~
PV Installation
Professional</div>
<div
style="font-size:12.8px">~
Small Wind Installer</div>
<div
style="font-size:12.8px">Executive
Director, Buckville
Energy</div>
<div
style="font-size:12.8px">NABCEP
Registered Continuing
Education Providers\u2122</div>
<div
style="font-size:12.8px">NABCEP
PV Associate</div>
<div
style="font-size:12.8px"><br>
<a
value="+19706724342"
style="color:rgb(17,85,204)" rel="noreferrer noreferrer noreferrer"
moz-do-not-send="true">970.672.4342</a></div>
<br>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
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<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Mon, Sep 3, 2018 at 10:28 AM Jerry
Shafer <<a href="mailto:jerrysgarage01@gmail.com"
rel="noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true">jerrysgarage01@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="auto">
<div dir="auto">I still use the sun eye and
solmetric, noting works as well as being on
site, solmetric had an app way back when that
was on a subcription bases</div>
<div dir="auto">Jerry</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Mon, Sep 3, 2018, 9:22 AM Jay
<<a href="mailto:jay.peltz@gmail.com"
rel="noreferrer noreferrer noreferrer
noreferrer" target="_blank"
moz-do-not-send="true">jay.peltz@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">Hi all,<br>
<br>
I\u2019m wondering about which apps people are
using for determining shading and sun
position. <br>
<br>
Thx<br>
Jay<br>
<br>
Peltz Power. <br>
<br>
<br>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Sep 3, 2018 9:22 AM,
"Jay" <<a href="mailto:jay.peltz@gmail.com"
rel="noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true">jay.peltz@gmail.com</a>>
wrote:<br type="attribution">
<blockquote
class="m_-1920696454644942483m_1362605780515453638m_1438304797335900902m_-4546419665603209436quote"
style="margin:0 0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">Hi all,<br>
<br>
I\u2019m wondering about which apps people are
using for determining shading and sun
position. <br>
<br>
Thx<br>
Jay<br>
<br>
Peltz Power. <br>
<br>
<br>
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