Powering Sydney's Future

A reliable, affordable and sustainable electricity supply is essential for our way of life. If you live, work or operate a business in the Inner Sydney area, you are connected to one of the most critical parts of the electricity network.

The current electricity network supplying the Inner Sydney area is ageing and will not be able to meet projected electricity demand.

The Powering Sydney’s Future project is TransGrid and Ausgrid’s plan for a reliable, safe and economical electricity supply that will support Sydney’s future.

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  • Key dates

    ​See below for a summary of key project dates.

    Early consultation on network and non-network solutions 2014​2014
    ​Introduce network option to community living/working along the proposed route and start engagement to receive feedback on our plans​2016
    ​Preferred route announcement and community information sessions ​Mid 2017
    Commence Environmental Impact Statement (EIS) planning and development 
    ​Late 2017
    ​Invite community feedback on EIS​Late 2018
    ​Project approval decision​Mid 2019
    ​Complete detailed design​Mid 2020
    ​Start construction​Mid 2020
    ​Complete construction​Late 2022
    For details on the need for the project, project stages, what to expect during construction and how community feedback is considered, see below. 
    For more information including details on the route selection process, the environmental assessment and community engagement completed to date, visit the  Community and Stakeholder Resources page.
  • Project need
    Inner Sydney is one of the most critical parts of the NSW electricity network. However, parts of the electricity network that currently supply Inner Sydney are ageing, with many of the assets built decades ago. 
    The key drivers for this project are: 
    • The planned retirement of a number of Ausgrid’s cables  that are in poor condition
    • The deteriorating condition and reduced capacity of ageing cables in the existing network
    • An upturn in peak electricity demand since 2014, driven by renewed economic activity and forecast to continue
    A solution needs to be in place by the early 2020s to address these issues and TransGrid, together with Ausgrid, has been planning a solution.

  • Project planning so far
    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.

    These documents and stakeholder engagement documents are available on the Community and Stakeholder Resource page as well as in the Community and Stakeholder Consultation Report. The Report outlines how stakeholder feedback has been considered in the planning process for the network solution.

  • Investigating non-network solutions

    TransGrid has been investigating non-network options as part of the proposed solution to meet future demand.

    TransGrid takes into account forecasts from the Australian Energy Market Operator (AEMO) and distribution network service providers (in this case, Ausgrid) to understand the needs of our energy users across NSW and the ACT. TransGrid also considers information provided by our directly connected customers and our own analysis, and modelling. These forecasts are updated regularly.

    TransGrid and Ausgrid are currently projecting higher growth rates over the next 10 years, as published in TransGrid's Transmission Annual Planning Report 2017. Demand management (non-build) options have the potential to relieve network constraints in the area until 2019 and possibly beyond.

    TransGrid is investigating three emerging technologies for use across the network as well as solutions for specific projects, such as for Powering Sydney’s Future. These technologies are energy storage devices, automated demand response (ADR) and geo-spatial mapping. A consideration for all potential solutions is that they meet the level of reliability set by the NSW Government.

    TransGrid recently published a Project Assessment Conclusions Report (PACR). The PACR makes a recommendation based on analysis of all submissions to the Project Assessment Draft Report (PADR). The recommendation includes a non-network component and a network solution.

    TransGrid currently plans to tender for non-network solutions in mid 2018.

  • Network solution route selection

    TransGrid’s preferred network option is the installation of a new underground cable circuit, with the infrastructure to enable installation of a second circuit in the future if required.

    TransGrid has assessed approximately 31 potential routes as part of the process to identify a preferred cable route.

    In considering the route options, TransGrid sought to minimise impacts on the surrounding community.

    Documents relating to the route selection process and community consultation on the preferred route can be found on the Community and Stakeholder Resources page.

  • Environmental assessment of the network solution

    Environmental impact is an important consideration in the assessment of solutions that will secure Inner Sydney's future energy needs. The environmental assessment considers the potential impacts resulting from the proposal and includes a range of considerations such as community, vegetation, noise, site conditions and heritage. TransGrid has completed the Preliminary Environmental Assessment and will start preparing the Environmental Impact Assessment of the network solution in late 2017.

    In June 2017, the project application and preliminary assessment was submitted to the Department of Planning and Environment (DP&E). The Preliminary Environmental Assessment (PEA) supports the project application, and includes an initial review of the environmental and community impacts that are considered relevant to the project. The DP&E uses the PEA as a basis for consultation with relevant government agencies to identify the specific assessment requirements for the preparation of the Environmental Impact Statement (EIS).

    The PEA on TransGrid's preferred network option is available on the resources page and via the NSW Department of Planning & Environment website.

    TransGrid has commenced the Environmental Impact Statement (EIS) phase of the project, which will detail the environmental effects as well as alternative options considered for the network component of the proposal. Based on the current program, we anticipate the EIS phase to conclude by late 2019.

    At this stage, TransGrid is planning to place the EIS for the network component on public exhibition in late-2018. Community engagement and opportunities to provide feedback will be ongoing during this stage.

  • Community and stakeholder engagement
    TransGrid started engagement on Powering Sydney's Future in 2014. Community and stakeholder feedback has been considered at each stage of the project planning process. This includes the expression of interest (EOI) from the non-network service providers as part of the RIT-T process and feedback from the community and stakeholders on network options.

    We are using a variety of tools to engage with stakeholders throughout the project. This includes workshops, meetings, newsletters, blogs, community sessions and online engagement.

    In June 2017, we undertook a series of community engagement events to inform the community about the preferred route selection. A summary of community engagement activities can be found in the Community and Stakeholder Consultation Report.

    The Community and Stakeholder Resources page has links to project updates, workshop materials, summary reports, the Route Selection Report and technical documents.

    Next steps

    Following early consultation on the proposed cable route and consideration of community feedback, the Preliminary Environmental Assessment (PEA) has now been published by the Department of Planning.

    TransGrid has commenced the Environmental Impact Statement (EIS) phase of the project, which will detail the environmental effects as well as alternative options considered for the network component of the proposal. Based on the current program, we anticipate the EIS phase to conclude by late 2019. As well as seeking regulatory approvals,  TransGrid will continue preliminary design work. Community engagement and opportunities to provide feedback will be ongoing during these stages.

  • Contact us

    Toll-free phone number: 1800 222 537

    Email:  psf@transgrid.com.au

    Post: PO Box A1000, Sydney South, NSW, 1235.

  • Frequently Asked Questions

    ​Please see the attached Frequently Asked Questions addressing key aspects of the project.