Last year I made an off-grid installation with six solar panels from Victron of 305 watts each. The solar array is expandable to a maximum of seven solar panels.
Why is seven solar panels the maximum limit of this installation?
I am glad you asked.
The installation is limited by the DC ground fault device and DC breakers.
The minimum expected winter temperature allows for a maximum of seven solar panels. This maintains the maximum open circuit voltage just below 300 volts.
In this case the limiting factor were the DIN rail safety devices from Midnite - GFCI and breakers - which are limited to 300 volts DC.
Any suggestions for a din rail GFCI and breakers that allow more than 300 volts would be appreciated.