High Voltage SAP
BMSL Group Ltd
Newport · posted 21 August 2026
Salary
£600 – £900 a day
Job type
full time
Location
Newport, Gwent
Category
Engineering
High Voltage Senior Authorised Person (SAP) - Major Substation Project
Newport, South Wales
Long-Term Freelance Contract (Approx. 2 Years)
£600 - £900 per day (CIS/Ltd Company, DOE)
A well-established engineering contractor delivering works on a major electrical infrastructure project in South Wales is looking for an HV Senior Authorised Person. This is an excellent opportunity for an experienced HV SAP to join a long-term substation project, supporting installation, testing, commissioning and energisation activities across critical power infrastructure.
With approximately two years' work available, this role offers the opportunity to become part of a major project team delivering essential UK energy infrastructure.
Duties
* Installation of High Voltage electrical equipment
* Supporting substation construction and commissioning activities
* Cable installation, termination and testing
* Functional testing and fault finding
* Supporting energisation and commissioning programmes
* Reading and interpreting electrical schematics and technical drawings
* Working closely with project, commissioning and site management teams
* Ensuring all works are completed safely and in accordance with project procedures
* Assisting with commissioning records, test documentation and quality documentation
* Supporting successful delivery of major power infrastructure works
Requirements
* Previous experience working as an HV SAP on substation or power infrastructure projects
* Strong installation, testing or commissioning experience
* Experience working within transmission, distribution, utilities or power generation environments
* Ability to interpret electrical drawings, schematics and technical documentation
* Strong understanding of safe working practices around HV systems
* Relevant electrical qualifications
* Full UK Driving Licence
Highly Desirable
-National Grid experience
-DNO or ICP project experience
-Substation construction experience
-Commissioning experience
-ECS Card
-CSCS Card
-SSSTS or SMSTS
-HV Authorisations or AP experience
What's On Offer
* £600 - £900 per day (CIS/Ltd Company)
* Approximately 2 years of secured work
* Major substation project
* Weekly payments
* Long-term project continuity
* Opportunity to work on critical UK energy infrastructure
Please Note
This role is best suited to candidates with previous High Voltage, power transmission, power distribution, utilities, substation or electrical infrastructure experience.
Candidates from National Grid, DNO, ICP, renewable energy, power generation and major infrastructure backgrounds will be particularly well suited
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