Europe needs more electricity infrastructure. The bigger question is whether the industry can build it fast enough. 

Across the continent, electrification, renewable generation, data centres and changing patterns of electricity demand are increasing pressure on transmission and distribution networks. For grid operators, transformer manufacturers and their supply chains, that is turning grid expansion into a major delivery challenge. 

Recent developments in the UK and across continental Europe show just how significant that challenge has become. 

The UK faces a major grid delivery test 

On 11 September, the UK’s National Audit Office (NAO) published its assessment of plans to upgrade the country’s electricity transmission network. 

Its conclusion was clear: delivering all the required grid upgrades by 2030 will be “very challenging”. 

The programme represents a major change in the pace of infrastructure development. According to the NAO, planning, supply chain and system access risks remain, while some projects are already forecast to arrive after 2030. 

That creates a wider problem. 

New electricity generation could connect before the transmission infrastructure required to move that power is ready. The longer that gap remains, the greater the risk of higher project and constraint costs. 

For the electrical manufacturing supply chain, this makes grid expansion much more than an infrastructure planning issue. 

Transformers, conductors, electrical steel, insulation, monitoring equipment and manufacturing capacity all sit behind the ability of grid operators to turn investment plans into working infrastructure. 

The NAO report highlights the importance of the supply chain alongside planning and system access, reinforcing a challenge already familiar to transformer manufacturers and grid operators: demand can move faster than manufacturing capacity. 

Read the National Audit Office report 

Europe is also looking at the grid it already has 

Building new infrastructure is only one part of the answer. 

On 10 September, eight European transmission system operators launched the second open call from the Grid Innovation Alliance under the theme “The Grid at its Limit.” 

The participating operators are 50Hertz, Amprion, Elia, Red Eléctrica, RTE, Swissgrid, TenneT and Terna. 

Their focus is straightforward: how can Europe reduce grid congestion and extract more capacity from existing electricity infrastructure? 

The Alliance says demand for transmission capacity is increasing faster than the grid can be expanded. It is therefore seeking technologies across four areas: monitoring, sensors and forecasting; intelligent transmission management and load-flow control; increasing the capacity and performance of existing grid assets; and new approaches from within and beyond the energy sector. 

Selected technology providers will have an opportunity to develop their solutions with participating TSOs and test them through proof-of-concept projects. 

Explore the Grid Innovation Alliance announcement 

Grid expansion starts in the supply chain 

Taken together, these developments point to an important shift. 

Europe cannot address rising electricity demand through new transmission infrastructure alone. The industry also needs to increase the output of its manufacturing base, improve the performance of existing assets and reduce the time between identifying a grid requirement and putting equipment into operation. 

For transformer OEMs, that brings factory throughput, testing capacity, material security and standardised designs into sharper focus. 

For TSOs and DSOs, it increases the value of earlier engagement with manufacturers and suppliers. Equipment specifications, available manufacturing capacity and lead times need to become part of grid planning earlier if projects are to move from plan to energisation at the required pace. 

And for technology providers, the pressure creates opportunities in monitoring, diagnostics, automation, sensors, digital asset management and technologies capable of increasing the capacity or lifetime of existing infrastructure. 

The challenge is increasingly one of delivery. 

From factory to substation 

CWIEME Berlin brings together the organisations on both sides of this challenge, from transformer OEMs, materials and component manufacturers to grid operators and technology providers. 

As grid investment increases, conversations across that value chain become increasingly important. A transformer cannot be installed if manufacturing capacity is unavailable. Production cannot increase without materials, machinery, testing capacity and skilled teams. And grid projects cannot move faster if specifications and manufacturing realities remain disconnected. 

The next stage of Europe’s grid expansion will therefore depend not only on how much infrastructure is planned, but on how effectively the industry can manufacture, deliver and operate it. 

That means bringing the factory and the grid closer together.