Field Service Engineer (Utility BESS)

Trina Solar; City of Westminster; On-site; GBP 42,000 - 56,000; Full time

Benefits offered by this job

Remote work possible

Competitive salary

Bonus structure

Job summary

Trina Solar is seeking a field-based engineer for South East England to support BESS installations, maintenance, and commissioning. You will perform RAMS, safety checks, fault diagnostics, and grid compliance activities, while coordinating with engineering teams and customers on site.

Ideal candidates have NVQ Level 3 or equivalent, experience with BESS/renewables, and strong problem-solving skills. Travel and overnight stays are expected as part of the role.

Qualifications

• Essential electrical engineering qualification (NVQ Level 3 or equivalent).
• Experience with Battery Energy Storage Systems and renewables.
• Strong fault-finding and ability to read electrical drawings.

Responsibilities

• Work on BESS installations and field-based maintenance.
• Perform RAMS, risk assessments, and safety reporting.
• Diagnose faults, implement corrective actions, and document results.
• Support commissioning, testing, and grid compliance activities.
• Engage with customers and contractors on site.
• Maintain service records and update technical documentation.

Skills

Battery Energy Storage

Electrical fault-finding

SCADA

Renewables

Reading schematics

High-voltage awareness

Education

NVQ Level 3 / City & Guilds / HNC/HND

Tools

SCADA systems

PLC controls

Power electronics

Inverters/PCS

Job description

Responsibilities

Health, Safety & Compliance:

• Always work in accordance with UK health and safety legislation, company procedures, and site-specific requirements.
• Perform risk assessments and method statements (RAMS) before commencing work.
• Ensure compliance with electrical safety standards, and lockout/tagout (LOTO) procedures.
• Promote a strong safety culture and report hazards, incidents, and near misses

Preventative Maintenance:

• Conduct planned preventative maintenance (PPM) on BESS installations.
• Inspect battery enclosures, PCS (Power Conversion Systems), transformers, switchgear, HVAC systems, fire suppression systems, and monitoring equipment.
• Complete maintenance documentation accurately and on time.
• Ensure service activities meet contractual requirements and OEM standards.

Fault Finding & Repairs

• Diagnose and resolve electrical, mechanical, communication, and control system faults.
• Perform root cause analysis and implement corrective actions.
• Replace defective components including: Battery modules; Inverters/PCS units; Communication devices; UPS systems; Fire Alarm systems; Gas alarm systems; Temperature management systems
• Coordinate with technical support and engineering teams for complex issues.

Commissioning & Testing:

• Support site commissioning activities for new energy storage projects.
• Conduct functional testing, electrical verification, and system performance assessments.
• Assist with system energisation and grid compliance testing.
• Produce commissioning reports and handover documentation.

Remote Monitoring & Support

• Utilise SCADA and remote monitoring platforms to investigate alarms and performance issues.
• Support customer requests and technical queries.
• Escalate critical issues appropriately to engineering and management teams

Documentation & Reporting

• Complete service reports using company service management systems.
• Maintain accurate records of work completed, parts used, and recommendations.
• Update technical documentation and service databases.

Customer Engagement

• Act as the primary technical representative on site.
• Build strong relationships with customers, contractors, and suppliers.
• Deliver high levels of customer service and professionalism.

Requirements

Essential:

• NVQ Level 3, City & Guilds, HNC/HND, or equivalent qualification in Electrical Engineering.
• Experience working on: Battery Energy Storage Systems (BESS); Renewables; Low-voltage (LV) electrical systems; Industrial power systems
• Strong electrical fault-finding skills.
• Experience interpreting electrical drawings and schematics.
• Full UK Driving Licence.
• Ability to work independently in a field-based environment.
• Right to work in the United Kingdom.

Desirable:

• Previous experience with utility-scale battery storage systems.
• Authorised Person (AP) or Senior Authorised Person (SAP) experience.
• Experience with: SCADA systems; PLC controls; Power electronics; Inverters and converters
• G99/Grid Code knowledge.
• Renewable energy industry experience

Technical Competencies:

• Electrical installation and maintenance
• High-voltage switching awareness
• Power conversion systems
• Battery technologies (Lithium-Ion preferred)
• Protection systems
• Network communications
• SCADA monitoring systems
• Root cause analysis
• Technical reporting
• Reading and interpreting electrical schematics

Personal Attributes:

• Strong commitment to safety.
• Excellent problem-solving abilities.
• Customer-focused mindset.
• Self-motivated and organised.
• Strong communication skills.
• Flexible and willing to travel.

Working Environment:

• Field-based role covering South East England.
• Frequent travel to customer sites.
• Overnight stays.
• Outdoor work in all weather conditions.
• Remote diagnosis of faults and issues

We offer you

• A dynamic environment with high responsibilities and an independent working style
• The opportunity for professional development and growth in one of the most fast-growing industries.
• An environment of open communication where all ideas and opinions are valued
• Collaboration with an international and diverse team from all over Europe
• Possibility for remote work
• Qualified training and support with our buddy system
• A detailed introduction to our product portfolio
• Competitive salary and a great bonus structure
• Attractive additional benefits that vary depending on the country