Melbourne CBD

Products Installed: Q.PEAK DUO-G5

Installer: SolarBOX

Est. Cost Savings: $1,300/yr

Solar System Size: 52 panels /7.8kW

Payback Time: 5yrs

Est. CO₂ Savings: 19,700lb/yr

The Challenge

With the second-highest retail electricity prices in Australia, Victorian energy prices (along with the rest of Australia) have soared more than for times the overall inflation rate in the last decade.

Project Overview

  • Practical Space Use: With limited roof space, Q.PEAK DUO-G5 yields higher generation of energy per square meter.
  • Suited for Weather: Better low-light behavior helps address Melbourne’s fickle weather. Despite intense Australian heat can lead to accelerated aging of solar panels, Q CELLS’ innovative Yield Security, factors like light and elevated temperature have less of a detrimental impact on performance for higher yields.
  • Blend in with Surroundings: The shade tolerance of Q.PEAK DUO-G5 paired with optimizers allows the future impact from shading on the panels due to the compact array and growing citrus tree out the front.


  • Reduced Home energy demand by 78.94%
  • Decreased Electricity needed to import from the grid – 2.32 kWh per day on average / 11.33 kWh (Before installation)
  • Est. Cost Savings $1,300 per year