waldo_g

No-one going to stick their neck out and give this a go?

Resurrecting this thread, since it addresses my current concern. I am aiming for two Deye 5kW inverters and two Volta stage 3 batteries. Following the discussion I will ask for the RH side configuration. I also want to get this right from the start, so what would you have for cable size and fuses in this setup, <2m cable length? Also, are the equal cable lengths then such a requirement, since the the -ve cables "crossing over" will invariably not be the same lengths as the +ve cables.

We are very late to the party, but now is the time. I am afraid of analysis paralysis and don't just want to ask the first installer for his recommendation without sufficient knowledge. Our requirement is at around an 8kW inverter, but due to the following I am going for 2x5kW inverters. This will probably be Deye due to slightly lower pricing than Sunsynk (but you're welcome to change my mind): 1. I want to run 2 geysers in peak solar production hours, which in our house is low consumption time in any case. 2. Redundancy. If we lose one inverter at least we will have some functionality left. In terms of battery service I am open to be convinced, currently thinking Hubble AM5, Dyness, Greenwich or Felicity (10kwh (2x5 for redundancy) again - upgradable). Panels will be around 16x 500-600 tier1 panels. For the inverters, the following applies. I need to determine for 2x 5kW, which of the parameters will change - in relation to both battery and panel array configuration (strings current and voltages) Deye 5kW Deye 8kW Battery Input Data Battery Voltage Range (V) 40-60 40-60 Max. Charging Current (A) 120 190 Max. Discharging Current (A) 120 190 PV String Input Data Max. DC Input Power (W) 6500 10400 Rated PV Input Voltage (V) 370 370 Start-up Voltage (V) 125 125 MPPT Voltage Range (V) 150-425 150-425 Full Load DC Voltage Range (V) 300-425 200-425 PV Input Current (A) 13+13 26+26 Max. PV I (A) 17+17 34+34 No.of MPP Trackers 2 2 No.of Strings per MPP Tracker 1+1 2+2 AC Output Data Rated AC Output Active Power (W) 5000 8000 Max AC Output Active Power (W) 5500 8800 AC Output Rated Current (A) 22.7/21.7 36.4/34.8 Max AC Output Current (A) 25/23.9 40/38.3 Max. Continuous AC Passthrough (A) 35 50 Your insights and advice would be required.