So, the contractor is starting the install soon. I have a EG4 18kPv which has 4 Pv Inputs, but only 3 MPPT's. PV input 1 & 2 (as MPPT 1) comes parallel on the inverter with a 25amp max on MPPT 1. See image.
The contractor says he wants to put the panels in a 8 by 8 Parallel config for MPPT 1...