WestSun put in a 15kWh battery for me, along with upgrading my inverter and setting up some new panels at the same time. Jeff has consulted on around 20MW of commercial solar initiatives, starting from SMEs to ASX top a hundred companies. Jeff has also provided unbiased advice to 100s https://sociallytraffic.com/story2937469/solar-systems-perth-wa-no-further-a-mystery