incentivesstcveec
STC vs VEEC vs LGC: Which Solar Incentives Does Your Business Qualify For?
Three incentive schemes, different eligibility rules. Find out which ones apply to your business and how much they are worth.
5 June 20268 min read
South Australia has excellent solar resources and a high penetration of rooftop solar, operating in STC Zone 3.
SA commercial solar installations can access the following incentive schemes.
Adjust system size to see your SA incentive breakdown at current certificate prices.
The zone multiplier determines how many STCs are generated per kilowatt of installed capacity. A multiplier of 1.382 means a 100 kW system in SA generates 553 STCs over the remaining deeming period (4 years to 2030), worth approximately $21,559 at current certificate prices.
Large-scale Generation Certificates provide annual recurring revenue for solar systems above 100 kW in South Australia. Unlike the one-time STC discount, LGCs generate income every year based on actual electricity production.
One LGC is created per megawatt-hour (MWh) of generation. At current prices of $47/LGC, a 150 kW system in SA generating approximately 340 MWh per year would earn roughly $16,003/year in LGC revenue.
Three incentive schemes, different eligibility rules. Find out which ones apply to your business and how much they are worth.
Payback varies from 3 to 7 years depending on state, system size, and incentives. See live calculations for your scenario.