Senior Substation Engineer

Application Deadline: 2 August 2026

Department: Engineering

Employment Type: Permanent

Location: Cardiff/Edinburgh

Reporting To: Andrew Hardcastle

Compensation: £75,000 / year

Description

ABOUT GREEN GEN CYMRU
POWERING A POSITIVE ENERGY FUTURE FOR WALES

At Green Gen Cymru, we’re acting now to build and operate a green energy network for Wales, that will make sure 100% renewable energy can flow to our homes, hospitals, schools, businesses, and communities.

We’re playing a pivotal role in providing a reliable and robust distribution network that will tackle the energy crisis, climate crisis, as well as the cost-of-living crisis. It will also empower rural communities through investment, jobs, and skills, enabling communities to live modern electric lives.

We want to make sure Wales has the energy it needs in a Net Zero world.

There’s endless potential for renewable energy in Wales – particularly from the wind that blows across our hills and mountains. But the green energy is stuck in the windy areas of Wales, and we need to get it to the homes, hospitals, schools, businesses, and communities that need it. To respond to this challenge and meet Welsh Government’s target for 100% renewable electricity in Wales by 2035, we’re developing a stronger, more resilient renewable electricity network that is greatly needed in Wales – distributing clean, green energy.
We want to build a positive, clean future for us all.

Key Responsibilities

SALARY: Starting from £75,000 per annum (skills and experience dependent)

REPORTS TO: Head of Engineering

LOCATION: Cardiff, Wales (with flexible working options)

As the Senior substation Engineer you will manage all aspects of substation design for the engineering team for Green Gen Cymru’s (GGC) network, engaging and supporting a multidisciplinary engineering team as they work with consultants, contractors, customers and other electricity network owners. You will support the GGC project development and project delivery team in all aspects of substation design and delivery to enable design and construction of the Green Gen Cymru network. The Senior Substation Engineer will be discipline lead for substation engineering and ensure the appropriate distribution voltage level standards are applied to the network design to ensure robust operation. The Senior Substation Engineer will report to the Head of Engineering. This role has a key co-ordination component with other engineering disciplines and other departments within Green Gen Cymru.

MAIN RESPONSIBILITIES
• Manage the ongoing substation engineering design engagement from connection offer to energisation being the key engineering department contact for any substation engineering design matters for Green Gen Cymru’s network
• Manage substation engineering changes through design or compliance
• You will be responsible for the management of all aspects of the substation design engaging with other engineering disciplines where required
• Ensure any substation design work takes account of CDM and this is considered throughout the design and construction stages.
• Support with the creation and ongoing adherence of the engineering procedures and policies to ensure a high and consistent standard of design is applied to project development and delivery
• Attend working groups such as the ENA as a substation authority to support Green Gen Cymru’s network development
• Ensure compliance with the NESO grid code, ENA, Distribution code and any other applicable
• Support policy change to improve engineering design and drive efficiency with new or amended engineering policies and procedures
• Support the Head of Engineering to drive improvement, support reporting and promote the business objectives to the wider team
• Have accountability for substation design reporting to the Head of Engineering
• Take a proactive approach to meet programme deadlines co-ordinating with other departments when required
• Accurately report progress each month to the Head of Engineering, including key activities linked to delivery and risk management
• Take a positive lead in developing relationships and working with other DNOs, TOs, NESO and Customers with regard to substation engineering
• Forge a positive working relationship with internal stakeholders, fostering collaboration across disciplines

Skills, Knowledge and Expertise

Knowledge & Skills

Excellent communication and engagement skills when reporting, negotiating, or dealing individually with stakeholders and direct reports
A high standard of written and oral English, with the ability to describe and provide clarity on engineering requirements to stakeholders
Organised individual who can multi-task and manage the engineering team across different projects
Works well within a multidisciplinary project team environment

Experience & Qualifications

Degree qualification in electrical engineering or relevant previous experience will be considered for this role
You will have a proven record of accomplishment as an engineer in energy project delivery environment with experience preferred in a regulated network
You will have a proven track record of managing engineering substation design from concept to delivery for energy projects
Be experienced in the application of CDM to design activities throughout the project lifecycle
Has experience of delivery to regulated engineering standards such as ENA, Distribution Code and Grid Code

Benefits

Hybrid work structure available.
The ability to work core hours and take time back in lieu throughout the week.
Fridays are allocated as ‘no meeting’ days to ensure down time at the end of the week.
28 days annual leave, plus bank holidays.
Private Medical Insurance from day 1 with cover for immediate family including spouse or partner and children, including direct mental health pathways and support.
Annual pay review and discretionary bonus.
Employer pension contributions up to 7%.
Electric car scheme via salary sacrifice.
Cycle to Work Scheme
Tech scheme – discounts on latest technology including laptops, phones, iPads for personal use
Life assurance cover and income protection.
Travel insurance.
Suite of enhanced policies and provisions to support colleagues through all the moments that matter.
Regular team socials, activities, sporting events and charity fundraisers.

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