Imagine a future where nearly half of Europe’s electricity comes from a clean, reliable source hidden beneath our feet. Geothermal energy could replace a staggering 42% of the EU’s fossil fuel-based electricity, but here’s the kicker: most people still don’t realize its full potential. While solar and wind dominate the renewable energy conversation, geothermal is quietly emerging as a game-changer—and it’s sparking some heated debates along the way.
New breakthroughs in drilling and reservoir engineering are unlocking geothermal power across Europe, even in areas once thought unsuitable. A groundbreaking report by energy think tank Ember reveals that 43 gigawatts (GW) of enhanced geothermal capacity could be developed in the EU for under €100/MWh, making it cost-competitive with coal and gas. But here’s where it gets controversial: despite this promise, Europe’s adoption of geothermal remains sluggish compared to other regions. Why? We’ll get to that.
This untapped potential could generate 301 terawatt-hours (TWh) of electricity annually, equivalent to nearly half of the EU’s coal and gas-fired generation by 2025. Globally, geothermal could meet up to 15% of electricity demand growth by 2050. But the report warns: if the EU doesn’t accelerate its efforts, it risks losing its leadership in this renewable sector. And this is the part most people miss—geothermal isn’t just about energy; it’s about energy security, insulating Europe from volatile fuel prices and reducing reliance on fossil fuel imports.
So, which EU nations are sitting on this goldmine? Hungary leads the pack with a whopping 28 GW of untapped geothermal potential, followed by Türkiye (6 GW) and Poland, Germany, and France (4 GW each). But here’s the twist: unlike traditional geothermal, which relies on volcanic regions like Iceland, enhanced geothermal systems (EGS) can tap into hot rock reservoirs kilometers underground, injecting fluid to create steam and generate power. This means even countries without natural geothermal hotspots can join the game.
Tatiana Mindekova, a policy advisor at Ember, puts it bluntly: ‘Geothermal is pushing the energy transition to new depths, making clean power accessible where it was once deemed too costly or out of reach.’ But she also highlights the elephant in the room: Europe’s slow and uneven deployment risks ceding ground to North America, where projects are scaling up rapidly. The U.S. and Canada are now poised to outpace Europe in geothermal development, thanks to streamlined permitting and stronger policy support.
And this is where it gets even more contentious. Is Europe falling behind in a race it helped start? While EGS projects in France, Germany, and Switzerland pioneered the technology in the 2000s, bureaucratic hurdles and inconsistent national policies have stifled progress. The report warns that delays could shift innovation, supply chain development, and cost reductions to other regions, leaving Europe at a disadvantage.
Here’s a thought-provoking question for you: Should the EU prioritize geothermal over other renewables, or is it a missed opportunity to focus on more established technologies? Let’s debate this in the comments. One thing’s for sure—geothermal’s potential is massive, but realizing it will require bold policies, investment, and a willingness to dig deeper—literally and figuratively—into Europe’s energy future.
