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<blockquote data-quote="binky" data-source="post: 366453" data-attributes="member: 490"><p>sharing an RCD with a solar systems is bad idea, the inverter relays chatter on start-up and frequently trip RCDs out, never mind the above point raised by Dave and Andy. Makes no odds whether solar is in same CU as garage or not as long as CU for garage is on same meter supply. If soalr is generating more than the house is using it will attempt to flow back to grid, if the garage is pulling electric it will flow to garage rather than exit the building. Inverters monitor the grid and output a higher voltage, so like water at a higher level it will flow first, where it goes depends on the electrical loading. If the garage is pulling a load, and house isn't, energy will flow to garage rather than go to grid, so as long as both CUs are supplied by the same meter (not the generation meter) you will still save on your bills.</p></blockquote><p></p>
[QUOTE="binky, post: 366453, member: 490"] sharing an RCD with a solar systems is bad idea, the inverter relays chatter on start-up and frequently trip RCDs out, never mind the above point raised by Dave and Andy. Makes no odds whether solar is in same CU as garage or not as long as CU for garage is on same meter supply. If soalr is generating more than the house is using it will attempt to flow back to grid, if the garage is pulling electric it will flow to garage rather than exit the building. Inverters monitor the grid and output a higher voltage, so like water at a higher level it will flow first, where it goes depends on the electrical loading. If the garage is pulling a load, and house isn't, energy will flow to garage rather than go to grid, so as long as both CUs are supplied by the same meter (not the generation meter) you will still save on your bills. [/QUOTE]
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