Commercial Solar System

Commercial Solar System   Explore Products


The commercial solar system is long term investment which significantly reduces your energy bills for full life cycle of 25-30 years.

Commercial solar will not only cover daytime energy consumption but also export surplus electricity to grid that will give money back thus making it a rewarding investment.

A commercial solar system could be anywhere between 15kW and 99kW depending on your requirements and available space.



At PROBEC, we only offer Tier 1 solar modules which are Clean Energy Council (CEC) approved. The solar rebate can only be claimed against CEC approved products (panels, inverters, and batteries). CEC continuously updates the list of approved products, click here if you want to see the updated lists on CEC website.

Whether you are looking for a 15kW or up to 99kW solar system on your commercial property, each property has its unique requirements to install the solar system. Following is some of the key factors which should be considered:


- Electricity bill

- Type of roof (Tile, Colourbond, Decramastic, Terracotta, and other)

- Roof orientation (ideal roof is facing north, but east and west could be used if there are restrictions on north side – please note that there will be about 12% loss in daily production while installing on eastern and/or western roof).

- Electricity meter (mostly 3 phase): A maximum of 15kW/3phase can be exported to the grid. However, energy provider could also allow a full export if you are installing a bigger system.

- Solar feed-in tariff: It is important to understand and compare solar feed-in tariff before deciding on the size of solar system. Click here to read more about solar feed-in tariff.

- Payback time: The payback back time should be less than seven years depending on your electricity bill before solar and size of solar system.

- Government incentive on solar (solar rebate): The rebate on solar depends on the size of total PV installed. Click here to learn more about solar rebate.

- Meter box/switchboard: The meter box and/or switchboard might need an upgrade depending on State’s requirements once a solar system is installed. The metering team might not connect your solar with grid if a mandatory upgrade is not conducted. Therefore, you might need to consider some extra cost on your solar if your meter box and/or switchboard are not compliance. However, their costs are marginal compared to the cost of solar system. 


This topic is technical and sometimes difficult to understand, but we tried keeping the information simple for your understanding.

Do not hesitate to contact us if you need further information to decide which panel you should choose. We are happy to help!