Saifullah Tareq Posted October 14, 2021 Share Posted October 14, 2021 Dear , I install a 1.5 KW on gird solar home system on the roof of a customer. but the load of the customer is very low. So How can I stop the power exporting from solar to grid by applying a external circuit. Quote Link to comment Share on other sites More sharing options...
Beat Posted October 15, 2021 Share Posted October 15, 2021 23 hours ago, Saifullah Tareq said: Dear , I install a 1.5 KW on gird solar home system on the roof of a customer. but the load of the customer is very low. So How can I stop the power exporting from solar to grid by applying a external circuit. I don't exactly understand your question. If you don't want to back feed into the grid, just disconnect the system from the grid. Quote Link to comment Share on other sites More sharing options...
rastert111 Posted October 15, 2021 Share Posted October 15, 2021 what is the brand model of inverter? some on-grid inverters have limiter functionality through use of external CT (current transformer). 46 minutes ago, Beat said: I don't exactly understand your question. If you don't want to back feed into the grid, just disconnect the system from the grid. you cannot disconnect grid in an on-grid system as it shuts off inverter, safety mechanism. Quote Link to comment Share on other sites More sharing options...
WannabeSolarSparky Posted October 15, 2021 Share Posted October 15, 2021 (edited) What is the inverter brand? If its solis or kodak or sunsynk then they have CT clamps that you must/can install and then set to limit the export to grid. Edited October 15, 2021 by WannabeSolarSparky Quote Link to comment Share on other sites More sharing options...
Beat Posted October 17, 2021 Share Posted October 17, 2021 On 2021/10/15 at 1:30 PM, rastert111 said: you cannot disconnect grid in an on-grid system as it shuts off inverter, safety mechanism. That I understand even less. That would mean that if the grid goes off (load shedding) your inverter shuts off also - no current in the home? Why do you want to stop back feeding after having bought an on-grid system in the first place? Quote Link to comment Share on other sites More sharing options...
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