June 11, 20233 yr Hi PowerForum I currently have a Sunsynk 5Kw single phase inverter paired with 5Kwh Li-ion battery and x8 JA Solar 550W panels. 1) The house has 3-Phase electrical system installed. Inverter and all essential loads are wired to a single phase 2) the balance of the loads (Geyser, Air-cons, etc) are wired to the other 2 phases. 3) during the day the panels are producing well in excess of the load. The balance of the solar power is simply wasted. Will it be possible to export to the grid and have the meter count backwards (pic of meter model attached)? Will it be possible to use the inverters Aux Load/smart load feature to supply the high power appliances (geyser, aircon, kettle) on the other phases during the day when the panels are producing in excess of the normal load?
June 11, 20233 yr In Cape Town, the by-law states that a separate meter, costing about R11 000 must be installed to achieve what you have in mind Bear in mind the safety aspect. If someone is working on the incoming cables, they want to know that there is no potential on any of the cables before they do their work
June 11, 20233 yr I think it’s illegal to feed into grid without agreement with the relevant municipality. It is possible to connect the geyser to the aux, but reading the forum, it’s limiting and finicky to setup. I rather put mine on essentials with Wi-Fi timers.
June 11, 20233 yr 6 hours ago, TheGhid said: Will it be possible to use the inverters Aux Load/smart load feature to supply the high power appliances (geyser, aircon, kettle) on the other phases during the day when the panels are producing in excess of the normal load? It is possible to use the Aux for heavy loads. However, if the CTs are installed correctly you can export to the CTs and supply energy to the heavy loads while the grid is on. My experience is that digital meters count export power as if you consume power. Also, I have not been able to electrocute any Eskom employees with my illegal inverter.
June 11, 20233 yr This is a single phase machine on one phase, with the other 2 phases completely separate. So you won't be able to supply the non essentials on the other phases with extra pv. You could wire them to the Aux on this phase, or have them on the non essentials of this phase which the inverter is on. Your meter is digital and cannot spin backwards like some guys do on the old mechanical meters (although as mentioned above that's not good practice)
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