They use top on the range inverters like Fronius, but most of their installs have Sungrow inverters - that's the worlds most bankable inverter and delivers the best ROI.  Melbourne Energy Team have many commercial and industrial installs, and go internally for cabling for inverters, or use cable tray - https://connerswbei.ageeksblog.com/31941722/top-melbourne-energy-brokerage-services-secrets