Proposal to construct and operate a zone substation on Lot 6, 480-544 Luddenham Road


Endeavour Energy is proposing to undertake construction works to build a zone substation on lot 6 DP 255578, within 480-544 Luddenham Road, Luddenham.

The proposal involves construction of a 45MVA firm 132/22kV zone substation adjacent to the north-eastern corner of Sydney Science Park. Construction of the zone substation will include land levelling and construction of a fenced area housing substation components.

The need

The proposal is required as part of Endeavour Energy’s broader transmission supply strategy to meet the future electricity demand of Sydney Science Park and surrounding developments. The proposal is crucial to provide a stable and reliable source of electricity to new infrastructure, and future residences and businesses locations within and around Sydney Science Park.


As shown in Figure 1 below, the proposed zone substation within lot 6 DP 255578 is located in the suburb of Luddenham.

Further details of the location are provided in the draft Review of Environmental Factors (REF) linked below.

Approximate location of Sydney Science Park Zone Substation

Approximate location of Sydney Science Park Zone Substation

Photomontage - Aerial view of the Sydney Science Park Zone Substation

Photomontage - Aerial view of the Sydney Science Park Zone Substation (Indicative)

Review of Environmental Factors

Endeavour Energy, as the Authorised Network Operator and proponent for this proposal, will undertake an assessment of the project in consideration of all environmental, technical, financial and community impacts. Under the NSW Environmental Planning and Assessment Act 1979 (EP&A Act), Endeavor Energy is the determining authority of the proposal.

In accordance with Part 5 of the EP&A Act, Endeavour Energy has prepared a draft Review of Environmental Factors (REF) which outlines:

  • the proposal description and justification (including benefits and objectives)
  • an overview of the relevant legislative framework
  • consultation completed during the assessment phase
  • consideration of alternatives
  • the environmental impact assessment and mitigation measures to be applied during construction and operation of the proposal.

Please see the draft REF for the proposal here.

Stakeholder input and feedback is an important part of the assessment process, including preparation of the REF. Following the consultation process, Endeavour will consider any submissions and determine if the project is to proceed as planned and on what development conditions. Submission closed by 24 November 2023.

If approved a Notice of Determination, contained the development consent conditions and authorising the construction works, will be issued by Endeavour Energy for the development.

Community correspondence

Stakeholders and landowners located nearby to the proposal will be notified of construction works. In the event any electricity supply outages are required to facilitate the safe construction of the proposal, any impacted landowners will be notified in advance.

Any planned electricity outages will be kept to a minimum and be as short as possible to safely facilitate the development.

Project contact details

For further information or to make a submission please email contact:

Mohammad Alam

Environmental Specialist

Endeavour Energy


P: 02 9583 6891