High Voltage Engineering Specialist

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About us

Worley is a global company of energy chemicals and resources experts headquartered in Australia. We partner with our customers to deliver projects and create value across the life of their assets. We specialize in consulting engineering procurement and construction across the project lifecycle with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery we support customers in navigating complexity as they meet todays needs and transition to more sustainable solutions.

High Voltage Engineering Specialist (Grid Connection & HV Systems)

Role Summary

The High Voltage Engineering Specialist is responsible for the design integration and compliance of highvoltage (HV) systems and grid connection interfaces for utilityscale energy projects (e.g. BESS renewables).
The role ensures that all HV equipment grid interfaces and system studies comply with grid codes utility requirements and applicable standards while supporting project execution from concept through commissioning.

Key Responsibilities

1. Grid Connection & Compliance

• Lead development of grid connection concepts and strategies
• Ensure compliance with TSO/DSO requirements and grid codes (e.g. VDEARN 4110/4120/4130)
• Define and review compliance evidence simulation scope and certification requirements
• Develop and define operational modes
• Interface with grid operators and support connection studies and approvals

2. High Voltage System Design

• Design and review HV systems including:
  • HV substations and switchyards
  • Transformers (e.g. 380/33 kV) and auxiliary systems
  • HV cable systems and overhead line interfaces
• Develop and validate:
  • Single line diagrams (SLD)
  • Equipment specifications (switchgear transformers protection)
  • Electrical layouts and earthing concepts
  • Ensure integration between HV MV and plant systems (BESS / generation)

3. Protection Control & System Integration

• Define and assess:
  • Protection philosophy and relay settings
  • SCADA / PPC / EMS interfaces
• Coordinate interfaces between:
  • HV systems
  • Power Conversion System (PCS)
  • Plant control and automation systems
  • Ensure compliance with power quality dynamic performance and grid-support requirements

5. Construction & Commissioning Support

• Support:
  • Installation supervision for HV equipment
  • Energization procedures and commissioning activities
• Review:
  • Test procedures (FAT/SAT)
  • Grid compliance and performance tests

Required Qualifications & Experience

Education

• Degree in Electrical Engineering Power Systems or equivalent

Professional Experience

• Extensive experience in:
  • High voltage systems (typically 110 kV)
  • Grid connection of power plants / BESS / renewables
  • Experience in grid compliance processes

Core Technical Skills

Grid & System Expertise

• Grid code compliance (VDE ENTSOE context)
• Power system studies (e.g. load flow fault level dynamic behavior)
• Grid connection procedures and permitting

HV Engineering

• Substations (AIS/GIS) transformers HV cables
• Protection systems and relay coordination
• Earthing and insulation coordination

Integration Skills

• Interface to BESS / inverterbased resources
• Understanding of:
  • PCS / inverters
  • Grid-support functions (reactive power frequency response blackstart)