US-driven data centre boom risks crashing Europe's power transition, researcher warns
US tech giants' AI buildout threatens to push up European power prices and crowd out electrification unless governments rethink grid access frameworks, a researcher told Montel.
Europe's rapid expansion of data centres, fuelled by US technology companies seeking to build out artificial intelligence infrastructure, risks driving up power prices, crowding out industrial electrification and delaying the continent's green transition unless governments overhaul their grid access frameworks, a researcher told Montel on Tuesday (2026-07-14).6
German day-ahead power was trading at €105.65 per megawatt hour on Tuesday (2026-07-14) morning, and the warning adds a structural demand dimension to a market already tracking elevated baseload costs. The five largest European data centre hubs — Frankfurt, London, Amsterdam, Paris and Dublin — already carry a combined demand capacity exceeding 5 GW, according to figures cited by Montel.6,2
That base is expanding sharply. Italy expects data centre power demand to quadruple to 20 TWh by 2030, a trajectory consultancy Key to Energy warned in May (2026-05-21) could produce grid bottlenecks severe enough to redirect investment toward Spain and eastern Europe. European data centre investment tied to AI is expected to exceed EUR 100bn, with Italy alone attracting up to EUR 60bn. Grid connection delays were already emerging as a critical constraint in the north of the country, Key to Energy said.1
Germany faces a similar ceiling, though at a longer horizon. The country is now Europe's largest data centre market, but power and grid constraints combined with long permitting times risk stalling growth after the next five years, an expert told Montel's German Energy Day in May (2026-05-21). Without adequate generation and connection capacity, investment may follow the path Key to Energy flagged for Italy — east and south.2
The underlying tension is that Europe is adding renewable capacity at a record pace but not translating that into lower emissions or looser grid constraints. More than 70 GW of renewable capacity was added across Europe in 2025, led by Germany, Spain and France, according to a study by EnAppSys, EQ and Energy Brainpool analysts published by Montel in May (2026-05-12). Only Finland combined that green buildout with actual emissions reductions. Rising renewable output has not consistently cut emissions elsewhere.5
Data centres stress this further. They draw power around the clock at high load factors, a profile that sits awkwardly in a grid increasingly shaped around variable renewable generation. Priority connections for constant-load users compete directly with the queue for new renewable assets and electrification projects, whether EV charging networks or industrial heat.6
The United States is already wrestling with a version of this problem. A proposed rule to accelerate grid connections for curtailable data centres — facilities that accept interruption in exchange for faster access — was under discussion by US regulators, the Economist reported in May (2026-05-17). The curtailability logic lets large loads queue-jump precisely because they absorb grid stress rather than amplify it. Most European markets have no equivalent mechanism.4
Elsewhere the scale of the investment challenge is similarly stark. Power demand from data centres, electric vehicles and green industrial parks in Southeast Asia is forecast to grow by more than 100 TWh over the next three to four years, with the required investment estimated above $200bn against an annual grid investment shortfall of $18bn by 2035. The numbers underline that Europe is not alone in facing this bind, but the EU's specific 2030 climate commitments make the conflict sharper.3
ICE Endex TTF front-month was trading at €53.79 per megawatt hour on Tuesday (2026-07-14). If data centres raise baseload demand floors in hub markets such as Frankfurt and Amsterdam, they limit how far solar and wind surpluses can push spot prices below zero — which keeps gas-fired plant in the merit order more often. The effect on TTF-linked generation economics is indirect but persistent.6,2
The policy flashpoint is grid access. Under current frameworks in most European markets, large loads connect on a first-come, first-served basis with no differentiated treatment for load profile or decarbonisation contribution. The researcher cited by Montel on Tuesday (2026-07-14) did not specify what alternative approach should replace it, beyond the need to rethink the rules. Until that changes, the race between renewable buildout and data centre demand growth has no referee.6