Job Description

Job Title - HV Commissioning Engineer 

Duration - 3 Month Contract 

Start Date - ASAP

Working Model - Onsite in Kent

Day Rate - £500 - £600 per day (Outside IR35)

HV Commissioning Engineer Overview 

My client is looking for an experienced HV Commissioning Engineer to support commissioning activities on a 33kV BESS project. The successful candidate will be responsible for testing, commissioning, and energising HV equipment and protection systems, ensuring all work is completed safely and in line with project requirements. The role will involve working closely with site teams, contractors, and client representatives throughout the commissioning phase.

The HV Commissioning Engineer role will involve:

Carrying out commissioning activities on 33kV HV equipment in line with approved procedures and project requirements

Testing and commissioning HV switchgear, transformers, protection relays, CT/VT circuits, control circuits, and associated equipment

Performing secondary injection, functional testing, trip testing, and scheme checks

Reviewing electrical drawings, schematics, wiring diagrams, protection settings, and commissioning documentation

Identifying, recording, reporting defects, non-conformances, and outstanding works

Completing commissioning records, test sheets, red-line mark-ups, and handover documentation

Liaising with site teams, client representatives, contractors, and design engineers throughout the commissioning process

Supporting energisation activities and ensuring systems are ready for safe operation

Ensuring all work is carried out in accordance with site safety procedures, permit systems, and project standards

The HV Commissioning Engineer will need to have the following attributes:

Proven experience commissioning HV electrical systems, ideally at 33kV

Experience working on BESS, renewable energy, grid connection, substation, or power infrastructure projects

Strong background in protection and control testing

Ability to read and interpret electrical schematics, wiring diagrams, SLDs, and commissioning documentation

Experience using relay testing equipment such as Omicron, Megger, or similar

Good understanding of HV safety procedures, permit systems, and safe systems of work

Strong problem-solving skills with the ability to identify and resolve technical issues

Excellent communication skills and the ability to work effectively with site teams and stakeholders

Relevant electrical qualifications and a valid ECS/CSCS card or equivalent

The following experience and attributes would be desirable:

Experience commissioning transformer, feeder, or differential protection schemes

Familiarity with G99 interface systems, metering panels, and grid connection requirements

Knowledge of DNO, ICP, or utility network standards and procedures

Experience supporting energisation activities on HV infrastructure projects

SAP or AP experience would be desirable

Previous experience working on live substations or power distribution projects would be desirable

If you are interested in this position, please apply with an up to date CV, along with your availability and day rate expectations