The OROC-Villa 4-plex units will use Solar thermal panels for hot water needs, and photovoltaic panels to supply 12 kW of main power:
12000 Watts results in a 55 panel photovoltaic array assuming some efficiency losses.
See power component breakdown attached and targeted usage listing below.
Panel A
Mech. equip. 3000W
Cooling 3000W
Panel B
Kitchens 6000W
Lighting and misc. power outlets 5000W