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One of our lurker friends asked me to add this to the
conversation:<br><br>
<i>Have the poster look into Open Energy Monitor:
<a href="https://openenergymonitor.org/emon/" eudora="autourl">
https://openenergymonitor.org/emon/</a> scroll down in the home page to
"Solar PV diversion".<br><br>
This monitor can do an amazing amount of things, many of them independent
of RE systems. It might be a resource for a large number of situations,
not the least of which is it's original intended purpose, monitoring home
energy usage.<br><br>
</i>And please note that many communities are experiencing decreases in
net billing incentives, which means it behooves system owners to use up
as much of their net export as possible. For example, folks are starting
to heat water with extra PV-made energy, instead of using natural gas.
Makes sense to me.<br><br>
Mike Nelson wrote at 01:04 PM 9/7/2016:<br>
<br>
<blockquote type=cite class=cite cite="">Seems like a very unnecessary
complication, The grid is the dump load.<br><br>
Michael D Nelson<br>
MD Electric & Solar, Inc.<br>
707-684-0064 mobile<br>
707-884-1862 office<br>
<a href="http://www.mdelectricsolar.com">www.mdelectricsolar.com</a><br>
Sent from my iPhone<br><br>
On Sep 7, 2016, at 12:54 PM, Daniel Young
<<a href="mailto:dyoung@dovetailsolar.com">dyoung@dovetailsolar.com</a>
> wrote:<br><br>
<blockquote type=cite class=cite cite="">SolarEdge inverters have an
export control function if you install an external meter to them. They
can be programmed to prevent any net energy export, or to limit that
export to a specific amount (if you had a large system with a relatively
smaller utility transformer for example).<br>
<br>
Here is a link to their system:
<a href="http://www.solaredge.com/sites/default/files/export_limitation_application_note_NA.pdf">
http://www.solaredge.com/sites/default/files/export_limitation_application_note_NA.pdf</a>
<br>
<br>
It would limit export power in real time, not energy over time, so if the
dump load is to prevent a net monthly export of kWh…¦ then I have no
clue.<br>
<br>
With Regards,<br>
<br>
Daniel Young, <br>
NABCEP Certified PV Installation Professional<sup>TM</sup>: Cert
#031508-90<br>
<br>
<b>From:</b> RE-wrenches
[<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">
mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of
</b>Kristopher Schmid<br>
<b>Sent:</b> Wednesday, September 07, 2016 2:31 PM<br>
<b>To:</b> RE-wrenches
<<a href="mailto:re-wrenches@lists.re-wrenches.org">
re-wrenches@lists.re-wrenches.org</a>><br>
<b>Subject:</b> [RE-wrenches] Grid tie with dump load?<br>
<br>
REWs,<br><br>
I have a client that asked me if i can install a battery free grid tied
system and have a dump load activate when it is overproducing. I am
at a loss, here. Anyone have ideas? A CT on the line side
that would activate a relay while current is flowing to the utility?<br>
Thanks,<br>
Kris<br><br>
-- <br>
Shine On!<br><br>
Kris Schmid<br>
Legacy Solar, LLC<br>
864 Clam Falls Trail<br>
Frederic, WI 54837<br>
<a href="http://www.legacysolar.com">www.legacysolar.com</a><br>
715-653-4295<br>
NABCEP Certified PV Installer<br>
Licensed Wisconsin Master Electrician<br>
BSEE<br>
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