The purpose of ring-fencing is to separate the competitive and regulated parts of Distribution Network Service Providers (DNSPs) to protect the long term interests of consumers. On 30 November 2016, we published the Ring-fencing Guideline (Electricity Distribution) which will apply across the NEM. We also published an explanatory statement to assist in understanding the Guideline and to explain why we have reached the positions set in it.

The Guideline is effective from 1 December 2016 and distribution network service providers (DNSPs) are required to comply with the Guideline as soon as it is reasonably practicable and no later than 1 January 2018, subject to any waivers.

Annual report

Key information




Background to the guideline


Ring-fencing enquiries should be directed to ringfencing@aer.gov.au.