Power System Engineer

A power system engineer works on the electricity network itself - the high-voltage transmission and distribution system that moves power from generators to homes and businesses. The job is largely about modelling and analysing how that network behaves: whether it stays stable when a fault occurs, whether a new wind farm or data centre can connect without causing problems, and what reinforcement is needed. They work for network operators, generators and renewable developers, consultancies, equipment manufacturers and system operators, and their analysis feeds into connection offers, investment decisions and regulatory submissions.

Starting salary: £28k–£35k
Live graduate jobs: 1 open now
Main way in: Graduate schemes at distribution network operators (DNOs), the…
They usually ask for: A degree in electrical or electronic engineering is the…

Approximate graduate salary

Typically around £28,000–£35,000 to start, though this varies widely by employer, sector and location. Large network operators and consultancies in London and the South East tend to sit at the upper end, and some graduate schemes add structured increases tied to progression milestones. Figures should be treated as a rough guide only.

What you'd actually do

Building and running network models in specialist software (PSS/E, PowerFactory, ETAP, IPSA and similar) to simulate load flow - how electricity actually distributes itself across a network under different demand and generation conditions.
Running fault level and short-circuit studies to check that switchgear and cables can safely handle the current that would flow if something failed, and flagging where equipment is at or over its rating.
Assessing connection applications - for example a battery storage site, solar farm or large industrial load wanting to join the network - and working out the impact, the reinforcement required and what conditions should apply.
Carrying out power quality and stability studies: harmonics, voltage step change, flicker, and increasingly dynamic and transient stability as more generation connects via power electronics rather than spinning machines.

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Writing up studies into technical reports that go to clients, internal design teams, or the regulator - a lot of the week is spent explaining results clearly in writing, not just producing them.
Checking work against the relevant codes and standards - the Grid Code, Distribution Code, Engineering Recommendations such as G99 for generator connections, and Energy Networks Association guidance - and interpreting what they require in a specific case.
Attending design reviews, clarification calls with developers or contractors, and sometimes site visits to substations to understand the physical assets behind the model.

How graduates get in

Graduate schemes at distribution network operators (DNOs), the electricity system operator and transmission owners are the most common route. These usually run as structured programmes with rotations across protection, design, planning and operations, and often support you towards chartership.
Graduate roles at engineering consultancies and specialist power systems consultancies - common, and often gives broader exposure earlier because you work across many clients and project types.
Direct entry into renewable developers, battery storage and independent connection providers, usually as a graduate or assistant engineer in a grid or electrical team. This part of the market has grown a lot and hires steadily.
Manufacturers and OEMs of transformers, switchgear, HVDC and protection equipment recruit graduates into applications and systems engineering roles that are close to power systems work.

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A taught MSc in power systems, electrical power engineering or renewable energy is a common step for graduates whose first degree was general electrical or mechanical engineering, or for those from physics and maths. It is not compulsory but it noticeably helps, because most undergraduate degrees cover power only lightly.
Moving across from a technician, apprentice or craft background in a network business, usually via a part-time or sponsored degree - less common for graduate-labelled roles but a real route into the profession.

What employers ask for

A degree in electrical or electronic engineering is the standard expectation. Mechanical engineering, general engineering, physics or maths can work, especially with a power-related MSc or a relevant final-year project - but unlike many graduate careers, the subject genuinely matters here because the maths and the equipment knowledge are specific.
Most employers ask for a 2:1, though some accept a 2:2 with relevant experience or a strong MSc. Accredited degrees (accredited by the IET or another professional institution) are preferred because they map cleanly onto the chartership route.
Evidence of power-specific knowledge: modules in power systems, machines, power electronics or protection, a relevant dissertation, or a placement year. A summer internship or industrial placement with a network operator, consultancy or developer is the single most useful thing on a CV.
Comfort with modelling and some scripting. Python is increasingly expected for automating studies and handling large result sets; MATLAB and Excel are near-universal. You are rarely required to have used PSS/E or PowerFactory before - employers train you - but having touched one is a clear advantage.

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A driving licence is often required or strongly preferred, because site and substation visits are part of the job and sites are rarely near public transport.
Many roles, particularly at network operators and in defence or critical infrastructure work, require security clearance or a basic background check. Some require you to be eligible for UK clearance, which can limit options for non-UK nationals in certain employers.

Skills that matter

Power system analysis fundamentals (load flow, fault level, per-unit, symmetrical components)

These are the mental models you use every day to sanity-check whether a simulation result is plausible before you send it to a client.

Fluency with simulation software

Most of your output is produced in PSS/E, PowerFactory, ETAP or similar, and speed and accuracy in building and debugging models directly determines how much you can deliver.

Scripting and data handling, usually Python

Studies often involve hundreds of scenarios, and engineers who can automate case setup and post-processing get through far more work than those clicking through the GUI.

Technical writing

A study is worthless until it is written up in a report that a planner, developer or regulator can act on, and junior engineers are judged heavily on report quality.

Reading and applying standards and codes

Much of the job is deciding what the Grid Code, Distribution Code or an Engineering Recommendation actually requires in an ambiguous real-world case, which is closer to careful interpretation than calculation.

Engineering judgement about assumptions

Network models are built on assumptions about demand, generation and outages, and knowing which assumptions are conservative and which are unrealistic is what separates a useful study from a misleading one.

Putting these on a CV? We counted which skills 12,914 live graduate adverts ask for, and what to do with the answer — part of our application advice.

Where it leads

Graduate or assistant engineer, typically two to three years, running studies set up and checked by someone more senior and learning the software and the standards. Many employers expect you to start a chartership development record in this period.
Engineer, working more independently - owning studies end to end, dealing directly with clients or internal stakeholders, and beginning to check junior colleagues' work.
Senior engineer, usually around the point of achieving chartered status with the IET (CEng). Timelines vary widely: some reach chartership in roughly four to five years on a structured scheme, others take considerably longer, especially outside formal graduate programmes.
From senior level the paths diverge. Technical specialism leads to principal engineer, technical authority or subject-matter expert roles in areas like HVDC, protection, stability or grid code compliance. The management path leads to team lead, then delivery or engineering management.
Longer term, common destinations include consultancy directorship, grid strategy or regulatory roles at network businesses, moving client-side to lead grid connections for a developer, or policy and planning work connected to the energy transition. Some move into contracting or independent consultancy, where day rates for experienced grid specialists are strong.

What people get wrong

“It's a hands-on job climbing pylons and working in substations.”

The overwhelming majority of the work is desk-based modelling, analysis and report writing. Site visits happen, but they are occasional and usually about understanding assets rather than touching them - the physical work belongs to field engineers, jointers and linespeople.

“It's a stable, slow-moving legacy industry.”

It is one of the fastest-changing areas of engineering right now. Replacing synchronous generators with inverter-based wind, solar and batteries has genuinely changed how the system behaves, so stability, inertia and power electronics problems that were niche are now mainstream work.

“You need to be brilliant at advanced maths and little else.”

The maths is important but mostly standard and embedded in the software. The harder part is judgement and communication: choosing sensible study assumptions, interpreting ambiguous code requirements and writing conclusions a non-specialist can act on.

“Power system engineering means working on the national transmission grid.”

Transmission is only one slice. Far more roles sit in distribution networks, renewable and storage developers, industrial and site-level electrical systems, data centres, rail electrification and manufacturers - and the day-to-day looks quite different in each.

Where this varies

The job title covers quite different work depending on where you sit. At a distribution network operator you are mostly handling connection applications, network planning and asset reinforcement in a heavily regulated environment with established processes. At the system operator or a transmission owner the work is larger-scale and more stability- and Grid-Code-focused. In consultancy you juggle multiple clients and projects, and the variety is greater but so is the time pressure and billable-hours culture. At a renewable or battery developer you sit on the client side, managing grid connection applications and compliance testing rather than assessing them. A separate strand of roles - sometimes also called power systems engineer - is site-level electrical systems work for data centres, industrial plants, rail or defence, which is closer to detailed electrical design than to network analysis. Geographically, the work clusters around network operator regions, Scotland and the North East for offshore wind and transmission, and the major consultancy and developer offices; remote and hybrid working is now fairly common for the modelling side but less so where site access or secure systems are involved.

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General guidance about the role across the UK market, not about any specific employer. Entry routes and requirements vary — always check the individual job advert.