Environment Signifigance Opinions

ENVIRONMENT SIGNIFICANCE OPINIONS

Environmental Planning Studies to support request for EIS exemptions for electrical infrastructure projects

PROJECT SUMMARY

Scale

Upgrading of ACT High Voltage Electricity Network

Location

ACT-wide, involving a number of projects on various sections of the network

Client

Evoenergy

Role

Project management, planning report, ACT Government liaison

Total Value

$10M

Timeframe

2017 – 2018

PROJECT FEATURES

Purdon Planning prepared a series of planning reports and environmental due diligence reports to support applications for an Environmental Significance Opinions (ESO) from the ACT Conservator of Flora and Fauna (the Conservator) and ACT Heritage.

The works by Evoenergy replaced existing overhead earth wires (OHEW) currently installed in various sections of the ActewAGL 132KV network with a new aerial cable containing an earthed fibre optic communication fibre referred to as optical ground wires (OPGW).

The applications have involved a series of sections of the overall network, including:

  • Civic to Bruce
  • Bruce to Gold Creek
  • Lawson to Latham
  • Latham to West Belconnen
  • West Belconnen to Woden
  • Wanniassa to Gilmore
  • Theodore to Gilmore
  • Gilmore to East Lake
  • East Lake to Kingston
PROJECT OUTCOMES

The transmission lines often traversed areas of significant environmental sensitivity and /or areas with heritage items.  The planning reports addressed:

  • Site characteristics
  • Legislative context
  • Potential impacts
  • Summary of mitigation
  • measures
  • Assessment of risk

In addition, the environmental due diligence reports further considered environmental attributes in detail in respect of each pole location along each route, together with EPBC assessment and analysis of the risks and measures to avoid impacts.