These two connected issues sit at the center of much controversial debate in U.S. politics right now. Opposition has shot up over the past year, with a recent poll revealing that about two-thirds of Americans oppose new data centre construction in their communities. Concerns include electricity costs, grid capacity, and who pays for infrastructure, alongside questions about water use, noise, and the impact on local communities.
This heated debate in the U.S. offers Europe an early warning about the infrastructure and affordability challenges that come with rapid data centre growth.
These facilities can bring investment and economic opportunities, and many countries are welcoming them. But their electricity requirements can be substantial. In the Netherlands, data centre developers have reportedly requested around 15 GW of grid connection capacity, which would double the country’s power consumption. While these requests do not necessarily represent actual consumption, they illustrate the scale of potential pressure on the electricity grid.
The key question is whether Europe's grids can accommodate this quick growth without increasing costs for households and businesses or delaying other connections.
Europe has every reason to welcome data centre investment, but it must first maximise existing grid capacity and make it easier to build generating capacity. Otherwise, it could face similar backlash against data centres and rising bills.
The cost of the AI boom will depend on how Europe plans for it.
Connecting large new loads requires available generation and transmission capacity, as well as planning for where demand will appear. Europe’s power demand is already rising, and new connections add another source of competition for network capacity.
When transmission constraints prevent electricity from reaching where it is needed, congestion appears and can increase system costs. Across the EU, that strain will likely grow alongside data centre demand. The National Energy System Operator in the UK has allocated 72.8 GW of capacity to data centres in its transmission and distribution connection queue. In Ireland, electricity consumed by existing data centres increased 10% last year.
But new demand can actually help spread some network costs across a larger customer base, if done right. If data centre developers cover the costs of upgrades needed to serve their projects, households and other businesses are better protected from those expenses. Where upgrades benefit the wider electricity system, sharing costs may be justified, depending on national regulatory frameworks. How those decisions are made will help determine whether new demand eases or adds to pressure on consumer bills.
The industry needs to be transparent about those choices and what they will mean for consumers and businesses.
The answer is building more grid and using more existing capacity.
Building new infrastructure is essential but will not resolve every near-term constraint because transmission projects take years to plan and build.
Grid-enhancing technologies can help address some of these bottlenecks in the meantime. Dynamic line ratings (DLR), for example, allow operators to adjust transmission line ratings to reflect changing weather conditions that affect how much power a line can safely carry. This can reveal additional usable capacity on existing lines.
The EU Grids Package is also the right step towards faster permitting, energy highways, flexible grid connections, as well as grid-enhancing technologies. But implementation of the Package must happen much faster and in sync with data centre development. The whole energy and power industry needs to be in crisis mode to enable load growth, domestic power supply, and energy security.
A similar bill is currently being prepared in America, the Bipartisan American Affordability and Jobs Act, BAAJA, which would also accelerate permitting timelines by setting a time limit on litigation, for example. Load growth caught America off guard, so the bill is being prepared when the grid is already stressed. Europe should learn from America’s lead and fix the underlying issues before power bills start rising.
A combination of removing permitting barriers for the grid and generators and maximising existing transmission will be key for helping generation to come online at the same pace as data centres.
Europe should act before affordability becomes a political problem.
Strong pushback in the U.S. has shown why it’s risky to treat grid capacity and affordability as problems to address only after demand arrives. The lesson for Europe isn't that data centre growth should be discouraged. It's that public support cannot be taken for granted when the costs and benefits of new infrastructure are unclear.
Europe has an opportunity to prepare for the data centre boom before the cost of connecting it becomes a source of public frustration.
That means building the generation and transmission infrastructure the continent needs, making better use of existing capacity, and being clear about who pays for network upgrades. If Europe wants to attract data centre investment and keep public support, these decisions need to be part of the plan from the outset.