Financial Incentives: STC rebate explained

Solar PV systems attract financial incentives based on their size and location as legislated in the RET scheme (Renewable Energy Target). The scheme is available for both commercial and residential customers. Systems up to 100 kW qualify for Small-scale Technology Certificates (STCs), whereas systems above 100 kW need to be registered as “power stations” to receive Large-scale Technology Certificates (LGCs) on a quarterly or yearly basis – depending on their electricity output.

How much financial support do I get?

STC rebate calculatorThe value of the STCs varies depending on supply and demand in the market, just like a stock or commodity. The amount of STCs or the STC entitlement also depends on the geographical location of the installation. For example, the entire area around Perth including Mandurah, Bunbury, Margaret River and in the North beyond Geraldton is classified as Zone 3. Less sunny places, such as Melbourne, are in Zone 2 and receive slightly fewer STCs.

At the time of writing, STCs are worth $27.40 per certificate. By multiplying the STC entitlement with the STC price, the total amount of STC rebate can be calculated.

DNX Energy handles all the paperwork required, and our clients are able to pay a reduced amount for their solar systems.

System size STC price 2017 STC entitlement* Total 2017 STC rebate** 2018 STC entitlement* Total 2018 STC rebate**
1.5 kW $27.40 29 $795 26 $712
3 kW $27.40 58 $1,589 53 $1,452
5 kW $27.40 96 $2,630 89 $2,439
6.5 kW $27.40 127 $3,480 116 $3,178
10 kW $27.40 193 $5,288 179 $4,905
15 kW $27.40 290 $7,946 269 $7,371
30 kW $27.40 580 $15,892 538 $14,741
40 kW $27.40 773 $21,180 718 $19,673
60 kW $27.40 1160 $31,784 1077 $29,510
80 kW $27.40 1547 $42,388 1437 $39,374
100 kW $27.40 1934 $52,992 1796 $49,210

*Zone 3: Perth, Mandurah, Bunbury, Margaret River, Lancelin, Jurien Bay, Geraldton, etc.
**Please note: Residential solar system sizes are marked above in blue. Commercial solar system sizes in black. STC prices are subject to change. This table only serves illustrative purposes. Please contact us for a quote to for current figures.