Power System Engineer - NESO

National Energy System Operator (NESO) recognises the potential of bright and talented individuals, and we encourage you to join us as Great Britain’s energy system undergoes an ambitious, exciting, and vital transformation. Together with industry, we are creating a cleaner, more sustainable energy future.

The offline modelling team enables the planning and operations for the Electricity Transmission System across England, Scotland, and Wales by maintaining and developing GB-wide system models. These models are used for short-term to long-term planning, spanning from hour ahead up to 12 years. The team works with industry participants—Transmission Owners, Distribution Network Owners, Generators, and OEMs—to share data and best practices, enhancing product accuracy.

Key responsibilities include power system analysis product development and management, asset data management, the Electricity Ten Year Statement (ETYS), Centralised Strategic Network Plan (CSNP) models, and third-party model requests for connection assessments. Additionally, we deliver transformative projects such as process digitalisation and automation to analyse risk, improve customer experience, and increase efficiency.

This role can be based from Wokingham or Warwick, and we continue to offer hybrid working from office and home. We are open to full time and part time applicants, as well as flexible working arrangements.

National Energy System Operator’s (NESO) mission is to facilitate the decarbonisation of Great Britain’s energy network and ensure the delivery of reliable, affordable, and clean electricity for consumers. We work with stakeholders across the whole energy industry to plan for future network needs, using a wider adoption of technology and changes in consumer behaviour, as well as ensuring we have the right markets, networks, and frameworks in place, to transform the way we operate tomorrow.

In Autumn of 2024, the ESO transitioned to National Energy System Operator, or NESO for short. Previously denoted as the Future System Operator (or FSO), the new National Energy System Operator is the independent body responsible for planning Great Britain’s electricity and gas networks and operating the electricity system. The NESO will build on our existing roles and capabilities to create an organisation that serves the energy system and its users’ needs, looking across vectors including electricity, natural gas, and hydrogen, and considering trade-offs between them. The organisation is set up as a public corporation with its own Board of independent directors, with complete operational independence from government, the regulator, and any commercial interest. NESO will be licensed and regulated by Ofgem through price control agreements and will identify optimal solutions to system operations and planning in the most sustainable, affordable, and secure way for all.

As a Power System Engineer here, you will have a combination of the following critical activities:

• Design and maintain models for onshore/offshore electricity transmission systems, ensuring system integrity and proactively integrating new technologies
• Oversee product management for applications like PSCAD, DigSilent PowerFactory, and in-house Python tools
• Develop and manage analytical and automation tools for robust network analysis
• Collaborate with industry partners to keep models updated, support policy and code changes, and provide engineering compliance guidance
• Engage with users to identify requirements, ensure legislative compliance, manage strategic projects, resolve customer queries, create training materials, and review processes annually
• Lead on grid compliance studies for third party model submission
• Lead on NESO network modelling commitments related to the Grid Code and System Operator Transmission Owner Codes

We’re forging the path, and we know we can’t do it alone. That’s why we need visionary minds like yours to join us on this transformative journey. In this case, we’re looking for someone who:

Essential

• Strong skills in utilising RMS or EMT simulation tools (preferably DIgSILENT PowerFactory or PSCAD)
• Good understanding on the application of Inverter-based resources (IBRs) in power systems (e.g., HVDC, FACTS, wind farm, BESS)
• Can present technical information to a range of stakeholders through written reports and presentations
• Lead or participate in grid compliance studies (especially EMT), ensuring that generation and transmission projects meet regulatory and technical standards
• Conduct simulations for power systems using PSCAD and DIgSILENT PowerFactory to analyse system behaviour under transient conditions
• Understanding of industry frameworks, codes, and technical challenges
• Strong written communication skills for reports and presentations
• Critical thinking and the ability to challenge ideas constructively

Research shows that some people may hesitate to apply unless they meet every requirement. At NESO, we believe potential comes in many forms and we’re committed to a fair, inclusive recruitment process where everyone can show their talents. We celebrate the difference people can bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds to build a workforce that feels valued and respected and represents the communities we serve.

A competitive salary between £55,000 - £72,000pa – dependent on experience and capability. As well as your base salary, you will receive a bonus based on company performance, 26 days annual leave as standard and a competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%.

As we work towards creating a cleaner, greener, and more affordable future for all, we also work towards creating a place for our teammates to belong, with professional and personal growth and positive well-being.

Full support and career-development resources to expand your skills, enhance your expertise, and maximise your potential along your career journey. A diverse and inclusive community of belonging, where teammates are empowered to bring ideas to the table. Generous Total Rewards Plan – comprising of health, finance and wealth, work/life balance, and career benefits.

This role closes on 25th January 2026 at 23:59. We encourage candidates to submit their application as early as possible as closing dates can vary. We are committed to building a workforce that represents the communities we serve and to providing flexible and tailored support at home and in the office.

We work towards the highest standards in everything we do, including how we support, value and develop our people. Our aim is to encourage and support employees to thrive and be the best they can be. We celebrate the difference people can bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds, and offer flexible and tailored support, at home and in the office.