My current PV system is a 4.857WK with 15 x 325W Q Cells driving SunnyBoy 5.0, which was installed in Sept 2020.
My roof top orientation:
ARRAY PITCH: 30.3° (7:12)
ARRAY FACING: 258° (WSW)
SITE LATITUDE: 37.56°
I also have a 2KW GTI with Battery pack of 10KWh. which gets charged between 11AM...