Preliminary Design Specs

Inverter, Charge Controller, Back-up Generator and Array Design

Design parameters

Parameter	Size	Note
1 DoA Battery requirement	3.05 kWh
4 DoA Battery requirement	12.19 kWh
Number of batteries	8	Rolls 184 Ah C10, 4 parallel x 2 series = 48V and 368 Ah
Battery energy storage	17.7 kWh	~ 5 DoA
Inverter	3.0 kW	Victron Multiplus
Generator Size	2.5 kW
Worst month array nominal size	5.75 kWp
Compensated array size (due to 5 DoA and Generator)	3.0 kWp
Number of modules	12
Vmax per module	47 V
Vmin per module	25.08 V
Max current per module	9.98 A
Number of strings	4
Number in series	3
Array Vmax	141 V
Array Vmin	75.24 V
Array max current	39.92 A
Charge Controller	3.5 kW, 150 V	Conext MPPT 60 PV MPPT

Basic Schematic of System