Parallel System - EAST / WEST Array Setup Info
I am writing this as i have finally after months of trying different settings, unit configurations - Parallele mode / Singleton modes etc etc. I fanally established the most efficeint operating parameters for 2 Parallel Units on an EAST / WEST setup.
I connected 1 * string of 3.6kW from the East array and 1 * string of 3.6kW from the West array to Master Inverter and then added 1 * string of 3.6kW from the East array and 1 * string of 3.6kW from the West array to Slave Inverter, this ensures that both inverters are running with similar input values, the pictures below clearly illustrate the messy below par inputs on the inverters when the Master was receiving a much higher input than the Slave and visa versa when both were strung with iether East or West arrays.
This clearly shows the enhanced performance from when i undertook the above mods, i figure i have lost out on about 10% of my system output since install. hopefully it will help others out in the same predicament!
One very happy person with my solar porn now!
This is a god-send. Thank you so much for posting it! I have the exact same issue and had got to the point where I knew 2 3.6ks in parallel would be better than 1 8kw (i was going to pair a shaded and non-shaded string on each tracker - but figured the losses of that would be too high)
I now now I have made the right choice :-D