European electricity demand has returned to growth after years of stagnation, even as industrial activity remains weak and energy costs high. Electric vehicles, electric heating and expanding data centres are adding to consumption, reshaping the region’s long-term power outlook and increasing pressure to upgrade grids as renewable generation grows.
EU electricity demand rose 0.5% in 2025
EU electricity demand increased 0.5% in 2025, down from 1.9% growth in 2024, data from Ember show. Germany, Italy and Spain recorded higher consumption in most months of the past year. After adjusting for weather, Portugal and the Nordic countries also saw more pronounced increases.
Heatwaves across Europe this summer prompted more households to consider installing air conditioning. The International Energy Agency (IEA) puts household air-conditioner penetration in Europe at 23% in 2025. Higher natural gas prices are also encouraging a shift to electric heating, lifting electricity’s share of household energy use.
Transport is another source of demand. High fuel prices and a wider choice of affordable models have supported electric vehicle sales. Clean transport group Transport & Environment said battery-electric cars outsold petrol cars for the first time over a full quarter in the second quarter of 2026. Its analysis also found that, as of mid-September 2026, home-charged EVs cost 50% less to run than petrol or diesel cars.
European Automobile Manufacturers’ Association (ACEA) figures show that battery-electric vehicle sales across Europe, including the UK, Switzerland and Norway, rose 52.2% year on year in August. The figures point to fuel costs influencing consumer choices and support the prospect of sustained electricity demand growth from transport.
Data centre capacity could exceed 30 GW by 2032
Demand growth is not limited to households and transport. BloombergNEF (BNEF) expects European data centre power capacity to double to more than 30 gigawatts by 2032, then reach 39 GW by 2035. The UK and Germany are forecast to remain the region’s two largest markets in 2035, with capacity of 7.7 GW and 5.1 GW, respectively.
Spain and Finland are expected to climb the data centre market rankings as projects now at an early stage come online toward the end of this decade. Ireland and the Netherlands could fall out of the top five amid existing constraints. Data centre growth, alongside new loads from EV charging and building heating, is likely to put more pressure on peak-hour supply and regional transmission networks.
Per Lekander, chief executive of London hedge fund Clean Energy Transition, said a growing share of energy use is being met by electricity. As a result, power demand can rise even if total energy demand falls, a shift he linked to electrification and data centre construction.
Renewable growth raises the cost of grid upgrades
Europe’s power mix is changing as well. EU solar generation surpassed coal-fired output in 2024. Ember data show that wind and solar generation together exceeded fossil-fuel generation for the first time in 2025. The EU and the UK both retain their 2050 carbon-neutrality targets, but expanding renewable generation will require more grid capacity to connect and transmit power.
The European Commission has introduced a European Grid Package proposing faster grid upgrades and permitting for renewable projects, as well as stronger cross-border cooperation. A review by the European Court of Auditors found that the Commission estimates the EU will need €2 trillion to €2.3 trillion by 2050 to meet grid requirements, equivalent to about $2.25 trillion to $2.6 trillion.
The investment timetable is also tight. The Commission estimates that the EU needs €584 billion, or about $656 billion, in grid investment by 2030. Around 40% of distribution networks are already more than 40 years old, while cross-border transmission capacity is expected to double by 2030. Meeting new electricity demand reliably will depend on whether grid expansion and upgrades keep pace with changes in both power generation and consumption.