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High Voltage Electrician

Job in Gorseinon, Swansea County, SA4, Wales, UK
Listing for: Sphere Solutions
Full Time position
Listed on 2026-06-16
Job specializations:
  • Trades / Skilled Labor
    Electrician/ Electrician Installation
  • Energy/Power Generation
    Electrician/ Electrician Installation, Renewable Energy
Salary/Wage Range or Industry Benchmark: 20 - 23 GBP Hourly GBP 20.00 23.00 HOUR
Job Description & How to Apply Below

High Voltage Electrician

Location: Nationwide
Salary: Competitive + Company Vehicle + Benefits
Job Type: Full-Time

We are currently recruiting for an experienced High Voltage Electrician to join a growing organisation delivering critical power and energy infrastructure projects throughout the UK.

This is an excellent opportunity for a skilled electrician with experience in HV environments to work on a diverse portfolio of projects including grid connections, battery energy storage systems (BESS), renewable energy developments, substations, and industrial power networks.

The successful candidate will join a highly skilled team responsible for delivering electrical installation, maintenance, testing, and fault-finding activities across a range of high-profile infrastructure projects.

The Role

As a High Voltage Electrician, you will be involved in the installation, testing, maintenance, and fault diagnosis of electrical systems operating across LV and HV networks.

Projects will include:
Grid Connection Projects, Battery Energy Storage Systems (BESS), Solar Farm Developments, Industrial and Private HV Networks & Substation Construction and Upgrades

Key responsibilities include:

  • Installation, termination, and testing of LV power and control cables

  • Glanding, wiring, containment installation, and panel wiring activities

  • Installation of transformers, switch gear, protection panels, and substation ancillary equipment

  • Fault finding and diagnostic testing across electrical systems

  • Carrying out earthing and bonding installations

  • Reading and interpreting electrical drawings, schematics, and wiring diagrams

  • Ensuring all work is completed safely and in accordance with current regulations, site procedures, and industry best practice

  • Maintaining high standards of workmanship, quality, and safety on site

About You

The ideal candidate will have a strong electrical installation background combined with experience working within high-voltage environments.

Essential Qualifications

  • NVQ Level 3 (or equivalent) in Electrical Installation or Electrical Engineering

  • 18th Edition Wiring Regulations (BS7671)

  • ECS, CSCS, CCNSG, or EUSR Card

  • Full UK Driving Licence

Desirable Qualifications

  • IPAF / MEWP and/or PASMA Certification

  • Confined Spaces Training

  • Existing HV Authorisation

Experience Required

  • Minimum 3 years' experience working within HV environments

  • Previous experience working on substations, grid connections, or utility infrastructure projects

  • Strong understanding of safe isolation procedures and electrical safety requirements

  • Experience working with DNO, IDNO, ICP, or private network operators would be advantageous

  • Ability to work independently and as part of a wider project team

  • Strong attention to detail and commitment to delivering work to a high standard

  • Reliable, proactive, and safety-focused approach to work

What's on Offer

  • Competitive salary package based on experience

  • Company vehicle

  • Private healthcare

  • Ongoing training and professional development

  • Opportunities to progress into HV Authorised Person, Senior Authorised Person, supervisory, or specialist technical roles

  • Exposure to a wide variety of major infrastructure, renewable energy, and power projects

  • Supportive working environment with genuine opportunities for long-term career development

If you're an experienced High Voltage Electrician looking to join a business where your skills are valued and your career can progress, we'd be keen to hear from you.

For a confidential discussion or to apply, please submit your CV today.

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