Controls Engineer - BESS Commissioning

About the Position

Controls Engineer - BESS Commissioning

Yorkshire, United Kingdom

On-siteFreelanceDuration 6 months

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Responsibilities

• Lead and support controls commissioning activities for the BESS project from pre-commissioning through to energisation, functional testing, and handover.
• Commission and troubleshoot PLC, RTU, SCADA, EMS/PMS, and plant control systems.
• Configure and test control logic, sequences, interlocks, permissives, alarms, and trips.
• Verify communications and data exchange between:
  • BESS PLC/RTU
  • SCADA
  • Energy Management System (EMS)
  • Power Management System (PMS)
  • Battery Management System (BMS)
  • Power Conversion System (PCS)
  • Inverters
  • HV/LV equipment
  • Protection and metering systems
• Carry out I/O checks, loop checks, and point-to-point testing.
• Support FAT/SAT activities and review test documentation.
• Perform functional testing of BESS operating modes, including charging, discharging, standby, grid support, and emergency shutdown functions.
• Test and validate remote/local control functionality.
• Support testing of active power, reactive power, voltage, and frequency control functions.
• Verify grid-code related control functions, where applicable.
• Investigate and resolve PLC, RTU, SCADA, and communications faults during commissioning.
• Test and validate alarms, events, status indications, and control commands within the SCADA system.
• Support Modbus TCP/IP, IEC 61850, IEC 60870-5-104, OPC UA/DA, or other industrial communications as required by the project.
• Review PLC/RTU logic, control narratives, functional design specifications, and cause-and-effect documentation.
• Assist with integration between the BESS and DNO/TSO/utility control systems.
• Support testing of emergency stop, safety interlocks, and shutdown sequences.
• Work with OEMs and subcontractors to diagnose and resolve commissioning issues.
• Record test results, punch-list items, defects, and corrective actions.
• Produce and review commissioning documentation, test sheets, and handover documentation.
• Support final performance testing and successful handover to operations.

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Requirements

• Degree/HNC/HND or equivalent qualification in Electrical Engineering, Control Systems, Automation, or a related discipline.
• Demonstrable commissioning experience within an industrial or energy environment.
• Strong understanding of electrical and control systems.
• Relevant electrical/control systems safety qualifications.
• CSCS/ECS or equivalent site certification desirable.
• 18th Edition desirable depending on project requirements.
• Experience working under RAMS, permit-to-work, and site commissioning procedures.

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Nice to Have

• Experience on projects involving:
  • Battery Energy Storage Systems
  • Solar PV
  • Wind
  • Substations
  • Grid connections
  • Power generation
  • HV infrastructure
  • Renewable energy
  • Data centres
  • Industrial automation
  • Power plants
  • Utilities

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We Offer

• Opportunity to work on a large-scale BESS project.
• Site-based role with potential for extension.
• Collaborate with experienced commissioning, electrical, SCADA, protection, and OEM teams.

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About the Company

ersg are an equal opportunities employer; we are committed to promoting equality of opportunity for all job applicants. We do not discriminate against applicants on the basis of age, sex, race, disability, pregnancy, marital status, sexual orientation, gender reassignment, or religious background; all decisions are based on merit.