15kW Solar System | Cost | Output | Savings | Outback Solar
A 15kW solar system typically consists of around 35 to 40 solar panels, depending on the wattage of each panel. In Australia currently an average size solar panel is between 390 Watts to 440 watts. For example, if I am using a 440W solar panel, then I will only require 35 solar panels to achieve a system size of 15000W or 15kW.