Could Europe’s Data Centre Boom Trigger a Nuclear Power Revival?

Europe’s artificial intelligence boom is creating an energy problem that could reshape the continent’s power industry.

Data centres are expanding rapidly as technology companies build infrastructure for AI models, cloud computing and digital services. The European Commission estimates that data centres consumed about 68 TWh of electricity in 2024, with demand projected to rise to around 114 TWh by 2030. That would represent roughly 3.2% of total EU electricity demand.

The surge is forcing policymakers and technology companies to confront a basic constraint: AI needs electricity around the clock.

That could strengthen the economic case for nuclear power, particularly in countries that already operate reactors and have relatively competitive electricity markets. J.P. Morgan analysts argue that Europe’s data-centre buildout could become an important catalyst for new nuclear investment.

The shift is already visible. Google has agreed to buy nuclear power from Finnish utility Fortum for its expanding data-centre operations, while European governments are increasingly supporting reactor life extensions and new nuclear projects.

The question is whether data centres can turn this renewed interest into a genuine nuclear revival.

Europe’s AI Expansion Is Creating a New Electricity Demand Curve

Data centres have historically been concentrated around major technology and financial centres such as London, Frankfurt and Amsterdam. But AI infrastructure is increasingly moving toward locations where electricity, land and grid connections are easier to secure.

That change is important because AI data centres can consume enormous quantities of power continuously.

J.P. Morgan estimates that European data-centre electricity demand could increase by 89 TWh annually by 2030 compared with 2023, with Iberia and the Nordic region accounting for about 45% of that increase. Europe's announced data-centre pipeline reached 66.1 GW at the end of 2025, compared with just 10.8 GW of live capacity, according to the firm's analysis.

The European Commission is responding to the pressure. It has proposed an EU-wide rating system for data centres that would improve transparency around energy and water consumption. The Commission also wants to triple European data-centre capacity over the next five to seven years.

The scale of the expansion means that electricity availability is becoming a factor in deciding where AI infrastructure can be built.

Why Nuclear Fits the Data Centre Load

Renewable energy will remain central to Europe's electricity expansion. Solar and wind can add large amounts of generation without direct carbon emissions, and their costs have become increasingly competitive.

The problem for hyperscale data centres is consistency.

AI workloads do not necessarily stop when the sun sets or when wind speeds fall. Data-centre operators therefore need reliable electricity supplies and increasingly sophisticated arrangements involving grids, storage and long-term power contracts.

Nuclear power has one major advantage in this environment: reactors can provide continuous generation with low operational carbon emissions.

The International Energy Agency expects renewables and nuclear together to supply most of the additional electricity needed for European data centres through 2030. Globally, the IEA expects electricity generation for data centres to rise from 460 TWh in 2024 to more than 1,000 TWh by 2030. It also expects nuclear to become increasingly important toward the end of the decade and beyond.

That does not mean nuclear will replace renewables. More likely, the two could play complementary roles, with renewables supplying large volumes of low-cost electricity and nuclear providing a more stable foundation for the grid.

Google’s Finland Deal Shows How the Model Could Work

One of the clearest European examples comes from Finland.

Google announced a €13 billion investment in AI infrastructure in Finland, including three new data centres in the country's northern region. The company also signed a 22-year agreement with Fortum under which Google can purchase up to 50% of the output from one of Fortum's Finnish nuclear plants.

The agreement is significant because it goes beyond simply buying electricity from the grid.

Long-term power contracts can give technology companies greater visibility over future electricity costs while providing utilities with predictable demand. That can potentially improve the economics of maintaining or developing generation assets.

Google and Fortum are also exploring additional nuclear and renewable projects.

The deal has nevertheless generated a debate inside Finland. Opposition parties have raised concerns about whether the rapid expansion of data centres could put pressure on electricity supply and prices. Prime Minister Petteri Orpo has argued that Finland has sufficient capacity and that the investment will benefit the country's economy.

For investors, the dispute illustrates an important point: data-centre demand can improve the economics of power generation, but it can also intensify competition for electricity.

Europe Is Already Reconsidering Nuclear Power

The data-centre boom is arriving at a time when Europe's nuclear policy is changing.

Several European countries that previously reduced their reliance on nuclear power are now extending reactor lifetimes or considering new projects. The European Commission estimates that about €241 billion of investment could be required through 2050 for new large reactors and lifetime extensions, according to J.P. Morgan's analysis.

France remains Europe's nuclear heavyweight, while Finland, Sweden and other Nordic countries have maintained or expanded their interest in nuclear generation.

Romania is also pursuing additional nuclear capacity. J.P. Morgan recently led financing for the refurbishment of Unit 1 at the Cernavodă nuclear plant and preliminary work connected with Units 3 and 4. The projects are intended to strengthen Romania's nuclear generation and energy security.

The renewed interest is therefore broader than AI alone. Data centres are becoming an additional source of demand at a time when Europe is already trying to reduce fossil-fuel dependence and improve energy security.

Small Modular Reactors Could Become Part of the Story

Large conventional nuclear plants require substantial capital, lengthy construction periods and complex permitting.

That creates a problem for fast-growing technology infrastructure.

Small modular reactors, or SMRs, are being promoted as a potential alternative. SMRs are smaller nuclear reactors designed with the possibility of standardised manufacturing and deployment.

The European Commission adopted an EU SMR strategy in March 2026 aimed at accelerating development and deployment of small and advanced modular reactors. The Commission specifically identifies data centres among the high-demand users that could benefit from reliable nuclear electricity.

However, investors should not confuse policy support with near-term electricity supply.

Europe currently has no operating commercial SMRs, and projects are generally targeted for the early 2030s.

That means existing reactors, reactor-life extensions, renewables, gas generation, batteries and grid upgrades are likely to remain more relevant to Europe's immediate electricity needs.

The Biggest Bottleneck May Be the Grid

Generating more electricity is only part of the problem.

A data centre needs a connection capable of delivering large amounts of power at the required reliability. In many European markets, grid connections and transmission capacity are already constrained.

J.P. Morgan estimates that Europe could require around $1.1 trillion of grid investment over the next decade, as aging infrastructure collides with AI-driven electricity demand, electrification and the need for greater resilience.

This creates another investment theme around the data-centre boom.

Transmission networks, substations, transformers, grid-management systems and storage may benefit alongside power generators. In some locations, the ability to connect a project to the grid could become as valuable as the availability of land.

Recent European data-centre developments also show why location is changing. Developers are increasingly moving away from major cities toward areas with cheaper electricity, more land and faster utility connections.

What It Could Mean for Nuclear Companies and Utilities

If data-centre demand continues to grow, European nuclear operators could gain from stronger long-term demand for dependable electricity.

Utilities with existing reactors may have an advantage because extending the life of an operating nuclear plant can be less complex than building an entirely new facility.

Fortum is one company already linked directly to the trend through its Google agreement. Other European nuclear operators could benefit indirectly if data-centre developers begin competing for long-term low-carbon electricity contracts.

There is also a potential second-order effect.

If demand grows faster than generation capacity, electricity prices in constrained regions could rise. That would improve the economics of new generation but could increase operating costs for data-centre developers and other electricity-intensive businesses.

For investors, the relevant question is therefore not simply whether Europe builds more nuclear reactors. It is whether power demand grows fast enough, and prices remain high enough, to justify the enormous capital required for new nuclear and grid infrastructure.

What Could Prevent a Nuclear Revival?

Nuclear power still faces major obstacles.

New reactors are expensive and can take many years to build. Regulatory approval can be lengthy, while construction delays and cost overruns have affected major projects in Europe.

There is also competition from renewables, storage, gas-fired generation and demand-management technologies.

Data-centre developers may also choose locations based on existing electricity capacity rather than waiting for new nuclear plants to be built.

That is why the near-term European energy response is likely to remain diversified rather than nuclear-only.

What Investors Should Watch

Several indicators will show whether the data-centre boom is genuinely changing Europe's nuclear economics:

Long-term power contracts: More agreements between hyperscalers and nuclear operators would indicate willingness to secure firm low-carbon electricity.

Data-centre capacity additions: The speed of new projects will determine how quickly electricity demand actually materialises.

Nuclear life extensions: Extending existing reactors could deliver additional supply faster than constructing new plants.

SMR milestones: Licensing, financing and construction decisions will reveal whether the technology can move beyond the development stage.

Grid investment: Transmission and connection capacity could become the main constraint on new AI infrastructure.

Electricity prices: Sustained price pressure in data-centre-heavy regions could strengthen the economic case for additional generation.

Bottom Line

Europe's data-centre boom is unlikely to create a nuclear revival by itself, but it is strengthening the case for nuclear power at a particularly important moment for the continent's energy system.

European data-centre electricity consumption is projected to rise sharply by 2030, while AI workloads require reliable power around the clock. Google's long-term nuclear agreement with Fortum shows that hyperscalers are already willing to secure nuclear electricity directly.

The bigger investment opportunity may extend beyond reactor builders. Utilities, grid operators, transmission equipment suppliers and energy-storage companies could all become part of Europe's response to rising AI electricity demand.

The key variable to watch is execution. Europe needs not only more generation, but also faster grid connections, financing, permitting and infrastructure development. If those pieces move together, AI could become an unexpected catalyst for a broader European nuclear and power-investment cycle.

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This article is for informational and educational purposes only and should not be considered investment advice.