The European Union is pushing forward with an ambitious energy strategy that combines nuclear power, renewable sources, and green hydrogen, a multi-track approach driven by years of supply disruptions, volatile gas prices, and binding climate commitments.
The drive to diversify gained renewed urgency following Europe’s energy crisis, which exposed the continent’s heavy reliance on imported fossil fuels.
In response, the European Commission launched its REPowerEU plan, which sets out a roadmap to expand domestic production, strengthen grid resilience, and accelerate the shift away from external energy dependency.
Nuclear holds its ground
Nuclear power remains a pillar of the EU’s energy mix. Despite long-running political debates in several member states over its future, the technology offers something renewables currently cannot: consistent, around-the-clock, low-carbon electricity generation.
Interest is now growing in next-generation nuclear technologies. Small modular reactors (SMRs), which are cheaper and faster to build than conventional plants, are attracting attention across Europe as a way to expand nuclear capacity without the scale and cost of traditional installations.
The International Atomic Energy Agency has noted that SMRs could improve flexibility and widen deployment options across different regions.
High construction costs and unresolved questions around waste disposal remain the chief obstacles to broader expansion.
Renewables scale up but grids must keep pace
Solar and wind energy are growing rapidly across the EU. Solar capacity in particular has surged in recent years, driven by falling installation costs and strong policy support.
Wind power both onshore and offshore is delivering increasingly large volumes of electricity to the grid.
The challenge is intermittency. Neither solar nor wind generates power on demand, which creates pressure on electricity networks during periods of low generation.
To address this, EU member states are investing in grid upgrades and large-scale energy storage systems.
The European Commission’s energy policy framework treats these infrastructure investments as essential to making high shares of renewables workable.
Hydropower continues to play a supporting role, offering reliable storage and generation — though its capacity for further expansion is limited by geography and environmental constraints.
Green hydrogen: the long-term bet
Green hydrogen produced by splitting water using renewable electricity has emerged as a key part of the EU’s long-term decarbonisation plan.
Unlike fossil-based hydrogen, it produces no carbon emissions and can be stored, transported, and used in sectors where direct electrification is difficult.
Heavy industry is a primary target. Steel production, chemical manufacturing, and long-distance shipping all present serious challenges for electrification.
Green hydrogen offers a potential alternative fuel in each of these areas.
The EU’s Hydrogen Strategy sets out plans to scale up production significantly over the coming decade. But the economics remain difficult.
Production costs are still high relative to fossil-based alternatives, and the infrastructure needed for wide-scale distribution pipelines, storage facilities, and refuelling networks is still being built.
A system built for resilience
What distinguishes the EU’s current approach is its deliberate use of multiple energy sources rather than a single solution.
Nuclear provides stable baseload supply. Renewables deliver clean power at scale.
Hydrogen absorbs surplus generation and provides flexibility where the grid alone cannot.
The European Commission has framed this integrated model as essential not just for meeting climate targets, but for building the kind of energy security that cannot be undermined by a single supplier, a single fuel type, or a single point of failure.
The transition will take time and significant investment.
But the direction of travel away from dependence on imported fossil fuels and towards a diversified, domestically anchored energy system is now firmly set.
