Payback periods for 30kW solar Panel systems are in the range of 3-5 years in most regions of Australia, making them an increasingly worthwhile and alluring investment for small to medium businesses. An overview of the price ranges, energy outputs (in kWh), and financial returns that a company may anticipate from a typical 30kW solar PV installation is given in this article.
Due to falling technological costs and the STC government incentive programme for systems with an output capacity under 100kW, the price of small-scale commercial solar systems has decreased significantly in Australia during the past few years.
Through the Commercial Solar PV Price Index, Solar 365 has been releasing the average cost of solar PV systems from 10kW to 100kW since May 2019. By December 2022, the average cost of a fully completed 30kW system will be around $30,030. These numbers include GST and government incentives (STCs).
The actual power output of a 30kW solar panel system will change depending on a variety of variables. These elements consist of:
The table below gives a general idea of how much electricity, on average annually, a 30kW solar system will generate in Australia's major cities.
| Capital City | Approx. average daily energy production* |
|---|---|
| Adelaide | 109-122kWh |
| Brisbane | 116-122kWh |
| Canberra | 108-124kWh |
| Darwin | 130-136kWh |
| Hobart | 86-99kWh |
| Melbourne | 94-108kWh |
| Perth | 120-131kWh |
| Sydney | 102-113kWh |
*Supposes a north-facing, sun-free location with a 75% system efficiency. Data from Bureau of Meteorology and PV Watts
Remember that the numbers in this table represent annual averages; as a result, daily output will typically be higher in
the summer and lower in the winter due to the variation in day length. A system might produce 20–40% less energy in the winter and 20–40% more in the summer.
Is 30kW the right solar system size for your business?
Determining the right size solar system for your business essentially comes down to three factors:
1.Roof space available: A 30kW system will need at least around 150–200m2 of space, but it may need more depending on the panel wattage and whether tilt frames are required.
2.Your energy consumption habits: Any solar energy that your system produces but that you cannot consume directly is of no financial advantage to you because solar feed-in credits are frequently not paid out for electricity put into the grid by solar systems beyond 10kW in capacity in Australia. For a free business case that Solar 365 engineers will create for you after independently evaluating your solar needs, click here.
3.Your budget: It all depends on whether you have the money to invest in a system if your roof is large enough to accommodate the largest solar system size that is advised.
What is the typical ROI and payback period for a 30kW solar panel system?
Payback durations for adequately scaled commercial-scale solar systems in Australia are typically approximately 3 years, according to our own data from nearly 30k+ Solar Panels Installed in 2022. This takes into account both the government's STC rebate and the present tax breaks for solar system depreciation.
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Since 2019 Solar 365 has consulted with over 300+ Project 30k+ Solar Panels Installed around Western Australia and helped develop over 40K+ MWH Produced solar commercial and solar farm projects.
