Power System Engineer - NESO

About the role

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.

Join us, and let’s energise progress.

energy, our future, together.

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 ESO, including all of its existing roles, are now at the heart of the new National Energy System Operator. As NESO, we will build on our existing roles, capabilities, and ways of working significantly to create an organisation the energy system and its users’ need. Our new capabilities will enable us to look across vectors, including electricity, natural gas and hydrogen, and crucially consider the 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 and all commercial interest. As was the ESO, NESO will be licenced and regulated by Ofgem through price control agreements and obligated to identify optimal solutions to system operations and planning in the most sustainable, affordable and secure way for all.

• Lead power and energy system modelling, analysis and optimisation
• Direct data management and assurance initiatives to maintain modelling accuracy and reliability, sourcing new data when needed.
• Build effective relationships and communicate modelling activities to key stakeholders, notably TOs, OEMs and Ofgem, to promote transparency and ensure our results are trusted.
• Deliver analyses and create impactful visualisations of modelling results using NESO’s enterprise data and Azure cloud environments, helping stakeholders quickly grasp key messages for methodology or policy decisions.
• Lead the development and implementation of analytical tools and data pipelines that enhance modelling, streamline analysis, and improve team processes.
• Stay up to date with the latest innovations in power system modelling and optimisation, data science, analytics, visualisation and cloud technologies, and bring new ideas into our…