North Pine WTP HV Upgrade

About the project

Pensar has been engaged to upgrade the North Pine Water Treatment Plant’s HV infrastructure. Works are due for completion in June 2021.

Key Capabilities

Design, supply, install and commission of LV and HV power systems and switchboards and PLC and SCADA control systems.

Project Location

Brisbane, Queensland

Client Name


Project Duration

November 2020 - June 2021

Project scope

  • Conducted a HV workshop with the client to determine the preferred HV switchboard vendor
  • Design, supply, construct and install the new HV switchboard within the new HV and LV switch rooms
  • Complete replacement of the existing cabling to accommodate future expansion to 11kV (currently 6.6)
  • Upgrade of the two dedicated Energex feeders from the existing zone substation, including upgrades to the Energex metering room
  • Relocation of the existing equipment to accommodate the new switch rooms
  • PLC and SCADA upgrades to monitor the new equipment and allow remote switching
  • Test and commission the entire plant HV network with staged cutovers to prevent loss of supply to the critical infrastructure


  • The plant is required to remain fully operational during the installation of the new equipment
  • Design coordination between the client, Energex and other key stakeholders
  • Working around existing HV equipment (Energex and private) whilst performing the upgrades
  • Relocation of the existing services while maintaining plant operations
  • Compressed program due to other critical projects


  • A successful outcome from the HV workshop and design process
  • Design deliverables and milestones achieved
  • Successful interactions between Energex and the client while maintaining the program
  • Additional achievements will be documented on completion of the project in June 2021