HV Interconnection 

2.5km, 22kV underground & Overhead works

Project Facts at a Glance: 

  • 2.5km, 22kV underground and overhead Interconnection
  • Connecting Solar Titan 250 Closed Cycle Gas Turbine Powerplant to the Grid   
  • Total Construction Management
  • Managed up to 60x site crew and contractors  
  • Project cost USD $5 Million
    •  

Of Significance:

  • Construction completed in just 7 months
  • Successful completion of these works were through the middle of a live, fully operating Petro Chemical refinery - very rigorous & intense daily Work permitting and Safety compliance.
  • Route and connection via 2x live substations (22kV & 66kV) 
  • Genco scope included securing full HV Regulatory Compliance sign off 
  • Required the closing of a city main highway for 2 days whilst 24 hour crews installed cable ducts under road
  • Required building 11kV surface cable ladder around live high pressure gas line network 
  • Required constructing civil works then installing HV Switching equipment within a live 66kV Switchyard
  • Required hauling 22kV overhead cables over live high pressure gas line network     

Project photo Gallery
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  • 11kV Interconnect crossing a main road, 24hour shifts working around live water and gas services
  • 11kV Interconnect crossing a main road, 24hour shifts working around live water and gas services
  • 11kV Interconnect crossing a main road, within 72 hours crossing complete and road reopened
  • 11kV Interconnect crossing a main road, within 72 hours crossing complete and road reopened
  • 11kV underground interconnect being installed into live substation
  • 11kV underground interconnect inspection done and backfilling underway
  • 11kV underground Interconnect ready for inspection prior to backfill
  • 11kV Interconnect, 1.6km overhead run 11kV HV + fibre optic control cables
  • Control panels delivered to site
  • Civil works required under a live 66kV switchyard
  • Civil works required under a live 66kV switchyard
  • Works required inside a live 66kV switchyard
  • 11kV Switchboard terminations
  • Installing 1.6km overhead fibre optic cable
  • 11kV interconenct, transition from underground to start of overhead
  • Fibre optic control cable terminations
  • 11kV Interconnect installation, crew working around live Hydrogen / Nitrogen gas lines
  • 11kV Interconnect, a 600m surface run required to be built around a live gas network
  • 11kV Interconnect, the end of the 2.3km line. Cables prepared for entry to live substation
  • 11kV Interconnect, the last of the 2.3km - a 600m surface run
  • 11kV interconnect, the last of the 2.3km run into last substation