Grid Upgrades – Are We Building the Right Grid, or Just a Bigger One?

Delivering Clean Power 2030 will require a fundamental transformation of the UK's electricity network. This Strategic Summit session brings together transmission operators, distribution network operators, developers and engineering specialists to examine whether the UK is building the right grid for the energy transition—or simply building a larger one.

The discussion begins by recognising the scale of the challenge. As renewable generation continues to grow and demand increases through the electrification of transport, heating and industry, the electricity network must accommodate both significantly higher generation and more dynamic patterns of consumption. Panel members agree that substantial investment is unavoidable, but debate whether future spending should focus primarily on expanding infrastructure or making smarter use of existing assets.

A recurring theme is the need to extract greater value from today's network before relying solely on new infrastructure. Technologies such as dynamic line ratings, reconductoring, digital monitoring and improved operational flexibility are highlighted as ways to increase network capacity while minimising disruption, environmental impacts and construction costs. Several speakers argue that smarter planning, better use of data and strategic deployment of battery storage can unlock additional capacity without immediately requiring entirely new transmission routes.

At the same time, transmission operators stress that optimisation alone cannot deliver the scale of network required for Clean Power 2030. Northern Scotland already generates far more renewable electricity than local demand can absorb, creating significant transmission constraints and renewable curtailment. While existing assets can be enhanced, major new transmission corridors and strategic reinforcements remain essential to transport renewable electricity from areas of generation to centres of demand across Great Britain. The panel concludes that smarter operation and network expansion must be pursued together rather than viewed as competing solutions.

The discussion also explores how the electricity system is becoming increasingly complex.

Distributed energy resources, domestic solar generation, batteries and flexible demand are changing traditional power flows, requiring a more responsive and digitally enabled grid. This evolution creates opportunities for local energy systems and microgrids, particularly in rural communities, while also increasing the importance of sophisticated network management, forecasting and system coordination.

A lively debate develops around network resilience and investment priorities. Some participants argue that current engineering standards prioritise reliability at significant cost and may slow the pace of decarbonisation, while others maintain that maintaining a highly resilient electricity network becomes even more important as society becomes increasingly dependent on electricity for heating, transport and essential services. The discussion highlights the need for greater transparency around investment decisions, risk management and the trade-offs between resilience, affordability and delivery speed.

The panel also considers the wider social dimension of grid development. Rural communities that host significant renewable generation often continue to experience fuel poverty and limited local benefits. Speakers discuss community energy schemes, local flexibility, microgrids and innovation programmes designed to reduce energy costs while improving resilience. Alongside these technical solutions, effective public engagement and clearer communication about infrastructure investment are seen as essential for maintaining public confidence in the energy transition.

The session concludes that the UK is broadly following the right strategic direction, but success will depend on integrating long-term planning with practical delivery. Smarter networks, accelerated connections reform, targeted infrastructure investment and greater coordination across generation, transmission, distribution and consumers will all be required to build a grid capable of supporting Clean Power 2030 and the UK's wider net zero ambitions.

The session explores

• Building the electricity network required for Clean Power 2030
• Grid expansion versus smarter use of existing infrastructure
• Dynamic line ratings, reconductoring and digital optimisation
• Transmission reinforcement and strategic network planning
• Distributed energy resources, batteries and flexible demand
• Grid resilience, investment priorities and regulatory reform
• Community energy, rural electrification and fuel poverty
• Connections reform and long-term electricity system planning

Watch the full session to hear network operators, developers and engineering experts discuss how the UK can deliver a smarter, more resilient electricity network while accelerating the transition to a secure, affordable and low-carbon energy system.

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