SA Power Networks' cost allocation method CAM governs the manner in which SA Power Networks is allowed to allocate costs to the distribution services that it provides. The allocation of costs between the services is required to accurately represent the costs incurred in providing those services. This prevents cross-subsidisation between the distribution and other services that SA Power Networks provides. SA Power Networks is the new trading name of ETSA Utilities. The amendments made to the CAM are administrative in nature, reflecting the change in trading name from ETSA Utilities to SA Power Networks.
In September 2012, SA Power Networks proposed an amendment to its CAM, which was approved by the AER in October 2012 under chapter six of the National Electricity Rules. This cost allocation method replaces the ETSA Utilities CAM approved by the AER in December 2011.