I have an existing 4kW solar panel installation from about 2011 with a feed-in tariff. I have recently had a SunSynk battery setup installed (2 * 5.2kWh) with SunSynk hybrid inverter. The batteries can charge from the grid or from the existing panels. I have roof space to add more panels and I would like to do this purely as an an additional means to charge the batteries. I have asked various suppliers but the general feeling is that this is not possible as the total generation capacity would be over the DNO limit. Is there a way to add panels to the new inverter and configure it such that it will not export to the grid? Moreover is there a way to convince the DNO that no additional export capacity has been added to the property? The inverter has a 'NO EXPORT' setting which feels like it should be what is needed but I can't get a straight answer as to if this is the solution.