The energy sector in 2026
The UK energy sector is undergoing the most significant transformation in its history. The transition from fossil fuels to renewable energy, the expansion of offshore wind (the UK has the largest installed capacity in the world), the development of hydrogen infrastructure, the phaseout of North Sea oil and gas under the Labour government's accelerated net zero commitments, and the growth of energy storage and smart grid technology are all reshaping the industry simultaneously. For anyone interviewing in the energy sector in 2026, understanding this transition and where your target employer sits within it is essential preparation. An employer in offshore wind has different concerns than one in nuclear, utilities retail, or oil and gas decommissioning.
Technical questions by sub-sector
Renewables (wind, solar): understanding of generation technologies, capacity factors, grid connection requirements, planning and permitting processes (NSIP regime for large projects), power purchase agreements (PPAs), contract-for-difference (CfD) mechanisms. "How does a CfD work and why is it used for offshore wind?" A CfD provides a guaranteed price (the strike price) for electricity generated. If the market price falls below the strike price, the government pays the difference; if it rises above, the generator pays back the excess. This protects investors from price volatility and makes long-term projects financeable. Oil and gas: upstream operations (exploration, drilling, production), UKCS regulatory environment (NSTA, formerly OGA), HSE process safety requirements, decommissioning cost estimation and planning. Utilities: distribution network operations, smart metering, Ofgem regulatory framework, retail margin management, Demand Side Response (DSR).
Energy transition questions
"What do you think are the biggest challenges for the UK energy sector in achieving net zero?" Strong answer (multi-dimensional, not just one factor): grid infrastructure (the UK needs massive investment in transmission and distribution networks to handle the shift from centralised fossil generation to distributed renewables), long-duration energy storage (batteries do not solve seasonal storage — hydrogen, compressed air, or pumped hydro are needed but at early stages), planning and permitting delays (offshore wind farms take years to approve despite urgent need), skills shortages (the energy transition requires engineers with new capabilities faster than training pipelines can supply them), and energy security (the tension between speed of fossil phase-out and security of supply during the transition). A nuanced answer that recognises trade-offs scores much higher than one that treats net zero as straightforward.
Behavioral questions
"Tell me about a time you worked on a project with significant environmental or safety implications." Energy sector work involves both. Strong answer: specific project, specific risk or implication, your role in managing it, and the outcome. Show genuine respect for the gravity of the consequences, not just process compliance. "Describe a time you had to manage relationships with multiple stakeholders with competing interests." Energy projects involve developers, regulators, local communities, grid operators, and investors — each with different requirements and timelines. Showing you can navigate complex stakeholder environments is essential for commercial and project roles.