Renewable Energy Certificates Registry

The Renewable Energy Certificates Registry is an internet-based registry system in Australia for renewable energy certificates. If an Australian organization installs a green energy installation, they can apply for RECs to offset consumption of fossil fuels.
The REC-registry was established by the Australian Renewable Energy (Electricity) Act 2000, and is maintained by the Clean Energy Regulator.
The REC-registry:

facilitates the creation, registration, transfer and surrender of large-scale generation certificates and small-scale technology certificates ],
tracks the ownership and status of all certificates,
provides access to the STC clearing house, and
maintains various public registers as required by the act.

Prior to 1 January 2011, the primary mechanism in the renewable energy target was the renewable energy certificate. From 1 January 2011 RECs were split into small-scale technology certificates and large-scale generation certificates. RECs are still used as a general term covering both STCs and LGCs.
All certificates must be created in the REC-registry before they can be bought, sold, traded or surrendered. Participants must hold an account and be registered as a REC-registry user to create, view or transfer certificates.