[RE-wrenches] Grid tie with dump load?

[Daniel Young]

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).

 

Here is a link to their system: http://www.solaredge.com/sites/default/files/export_limitation_application_note_NA.pdf 

 

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.

 

With Regards,

 

Daniel Young, 

NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90

 

From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Kristopher Schmid
Sent: Wednesday, September 07, 2016 2:31 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Subject: [RE-wrenches] Grid tie with dump load?

 

REWs,

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?

Thanks,

Kris



-- 

Shine On!

Kris Schmid
Legacy Solar, LLC
864 Clam Falls Trail
Frederic, WI 54837
www.legacysolar.com <http://www.legacysolar.com> 
715-653-4295
NABCEP Certified PV Installer
Licensed Wisconsin Master Electrician
BSEE

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