teal95
Solar Enthusiast
System 1 is a normal grid backup home system (at least for the US). 100 amp feed from the grid, SolArk 15k, 20 kW of panels and 30kWh of lithium batteries. Ground bonding is though the main grid panel with it being the only ground rod. Entire system is in a barn 200' from the house and main panel.
System 2 is for feeding 3 phase equipment in the barn. Currently 4x EG4 6400ex inverters with 2 more soon. At some point it will probably get more PV tied into them as the SolArk is already full.
The only connection between the 2 systems is the batteries. To me the 3 phase system should have it's own ground rod and bond in it's breaker panel. My electrician wants to tie all the grounds together including another ground rod in the barn.
Which is right or is there another alternative?
System 2 is for feeding 3 phase equipment in the barn. Currently 4x EG4 6400ex inverters with 2 more soon. At some point it will probably get more PV tied into them as the SolArk is already full.
The only connection between the 2 systems is the batteries. To me the 3 phase system should have it's own ground rod and bond in it's breaker panel. My electrician wants to tie all the grounds together including another ground rod in the barn.
Which is right or is there another alternative?