TransGrid has been investigating a number of non-network and network options to find a solution that will support Sydney’s future electricity needs. Based on early planning, this solution needs to be delivered by the early 2020s.
Determining the best solution means balancing a number of factors such as environment, community, cost and delivery time, while continuing to deliver a safe and reliable electricity supply to the Inner Sydney area. TransGrid is planning to utilise a non-network and a network solution to best achieve this.
Regulatory Investment Test – Transmission (RIT-T)
TransGrid has completed two stages of a Regulatory Investment Test – Transmission (RIT-T) as required by the Australian Energy Regulator (AER). The purpose of the RIT-T is to identify the transmission investment option which maximises net economic benefits and, where applicable, meets the relevant jurisdictional or Electricity Rule based reliability standards.
The documents below relate to the RIT-T process.
TransGrid has been seeking input from a wide range of stakeholders as part of the project planning process and has a preferred solution which comprises four years of non network options followed by staged installation of underground cables between TransGrid's Rookwood Road and Beaconsfield substations.