The deeming period is an estimate of the years the system will create renewable energy. In essence, you are required to select the deeming period for how you want to claim your RECs. You have a choice of 5 or 15 years.
The maximum deeming period is 15 years after which no further RECs
can be created. Five year deeming creates in batches. There is a creation for the first 5 years after installation and then at subsequent 5 year intervals. A 5 year deeming period means your RECs
are generated every 5 years and can be sold on the open RECs
market, delivering a financial return every 5 years. The upfront value you receive for each claim is less than received for the 15 year deeming period.
The 15 year deeming period means that the quantity of RECs
is created for the entire 15 years upfront. This enables you to gain the financial benefit up-front for the full 15 year deeming period value.
To claim 15 year deeming; the system must be installed by an installer accredited with the Clean Energy Council. (Deeming periods are not applicable for solar water heating/heat pumps). All Clean Energy Centre installers are accredited with the Clean Energy Council.
IMPORTANT NOTE: The Solar Credits Multiplier is only applied once to the deeming period you select. Therefore, if you select the 5 year deeming period, the rebate benefit you will gain through the Solar Credits multiplier will be less than received from the 15 year deeming period. The majority of residential and business customers nominate a 15 year deeming period.