You should read our blog post with detailed explanation on STC
Calculating small-scale technology certificates for your system
The number of small-scale technology certificates a system may be eligible for varies depending on the type and size of the system, installation date and geographic location.
The Clean Energy Regulator has developed small-scale technology certificate calculators to provide you with an approximate amount of certificates a system may be eligible for. These calculators should be used as a guide only.
- Small generation unit (solar panel, wind and hydro systems) small-scale technology certificate calculator
- Solar water heater (including air source heat pumps) small-scale technology certificate calculator