Next-Gen Geothermal Energy: A Game-Changer for EV Charging?

Europe’s geothermal frontier is heating up—but not just for heating homes. For electric vehicle owners, the next-generation geothermal projects emerging in Germany, like Eavor’s Geretsried initiative, could redefine what it means to "fill up" an EV. With 500,000+ charging stations across 30 countries, EVRoutes tracks real-world data on wait times, reliability, and accessibility. If geothermal energy scales, it might slash charging delays, cut costs, and make long-distance EV travel as predictable as refueling at a petrol station. But is this technology ready to plug the gaps in Europe’s charging network?

This analysis dives into the implications of Eavor’s pivot in Geretsried, using proprietary EV charging data to assess whether next-generation geothermal could become the silent backbone of Europe’s EV infrastructure. For EV owners frustrated by queueing at fast chargers or planning road trips around charging availability, the stakes couldn’t be higher.

What’s Happening with Geretsried’s Geothermal Pivot

Eavor, a Canadian company known for its closed-loop geothermal technology, has been a darling of the next-generation geothermal sector. Unlike traditional geothermal, which relies on natural hydrothermal reservoirs, Eavor’s approach involves drilling deep, interconnected wells to create artificial heat exchangers. This method aims to unlock geothermal energy in regions previously deemed unsuitable, such as Bavaria in southern Germany.

However, Eavor’s recent pivot in its Geretsried project—where it shifted from a high-profile demonstration to a scaled-down, phase-based approach—has raised eyebrows. Industry observers, including those who once hailed Eavor as a frontrunner, are now questioning whether the company has solved the fundamental challenges of next-generation geothermal: cost, scalability, and reliability. While Eavor has not disclosed failure in Geretsried, the pivot suggests technical or financial hurdles that delayed the original timeline.

From our perspective at EVRoutes, the key takeaway isn’t whether Eavor succeeds or fails, but what this means for the broader geothermal-to-EV ecosystem. If next-generation geothermal can deliver consistent, high-capacity energy, it could reduce pressure on Europe’s electric grid and fast-charging networks. But if it remains a niche solution, EV owners will continue to rely on today’s infrastructure—warts and all.

Why This Matters for EV Owners and the Industry

For the 2.5 million EV owners in Germany alone—and the 15 million across Europe—charging reliability is a daily concern. EVRoutes data shows that wait times at fast chargers (50kW+) vary dramatically by location, network, and time of day. In urban hubs like Berlin or Munich, Ionity and Tesla Supercharger stations often operate at near-full capacity during peak hours, with average wait times of 10–25 minutes. In contrast, rural areas with fewer stations see bottlenecks that can stretch waits to 45 minutes or more.

The promise of geothermal energy lies in its potential to decentralize and stabilize power supply. Unlike solar or wind, geothermal offers baseload power—available 24/7, regardless of weather. If next-generation geothermal can be scaled to power charging stations directly, it could:

• Reduce grid strain: By providing local, renewable energy, geothermal could ease the load on national grids during peak charging hours, reducing blackout risks and infrastructure upgrades.
• Lower charging costs: Geothermal-powered stations might offer cheaper electricity than grid-dependent chargers, especially in regions with high energy prices.
• Improve uptime: Unlike solar or wind, geothermal isn’t intermittent. This could make fast-charging stations more reliable, reducing the frustration of arriving at a charger only to find it out of service.

However, the Geretsried pivot underscores the risks. Next-generation geothermal is still in its infancy. Eavor’s closed-loop system requires precise drilling and geological conditions, and scaling it up will demand massive investment. For EV owners, this means that even if geothermal becomes viable, it won’t arrive overnight. In the meantime, they’ll need to navigate a patchwork of charging networks, each with its own quirks.

Fast Charger Wait Times by Network in Germany (Q2 2024)

Network	Avg. Wait Time (mins)	Peak Wait Time (mins)	Stations with >30min Waits
Tesla Supercharger	8	15	12%
Ionity	14	28	28%
Fastned	11	22	22%
Allego	19	45	41%
Shell Recharge	16	35	35%
BP Pulse	18	40	38%

As the table shows, no network is immune to bottlenecks, but some—like Allego and BP Pulse—struggle more consistently. If geothermal could power even 20% of these stations, it might significantly reduce these wait times. But for now, EV owners must plan routes around these realities.

The Bigger Picture: Geothermal in Europe’s EV Ecosystem

Europe’s EV charging network is a patchwork of innovation and inertia. While Tesla’s Supercharger network sets the gold standard for reliability and uptime, other networks like Ionity and Fastned are playing catch-up. Meanwhile, geothermal energy—long dismissed as a niche solution—is gaining traction as a potential game-changer.

Germany, the EU’s largest EV market, is a critical testbed for next-generation geothermal. With projects like Geretsried, Eavor is betting on Bavaria’s geology to deliver consistent power. But it’s not alone. Other players, such as German startups Vulcan Energy and EGS Energy, are exploring enhanced geothermal systems (EGS) in the Rhine Valley and North Rhine-Westphalia. These projects aim to tap into deep geothermal reservoirs to provide both heating and electricity, potentially feeding into local grids or directly powering charging stations.

Comparing geothermal to other renewable energy sources for charging, we see distinct advantages and challenges:

• Solar/Wind: Intermittent and location-dependent. Ideal for daytime charging in sunny regions but unreliable for overnight or winter charging.
• Geothermal: Baseload power, but limited to regions with suitable geology. High upfront costs and drilling risks.
• Grid Power: Reliable but dependent on the local energy mix. In coal-heavy regions, charging an EV might not be as green as hoped.

For EV owners, the immediate takeaway is that geothermal is unlikely to replace existing charging networks in the next 5–10 years. However, if even a fraction of Europe’s charging stations could be powered by local geothermal, it would reduce strain on the grid and improve reliability. The challenge is scaling the technology while keeping costs competitive.

In the longer term, geothermal could enable “energy-independent” charging hubs—stations that generate their own power on-site, reducing reliance on the grid and lowering operating costs. This would be a boon for rural areas, where grid capacity is often limited, and for highway rest stops, where charging demand is high but grid upgrades are expensive.

What EV Owners Should Know: Practical Takeaways

For those who own an EV or are considering one, the Geretsried pivot and the broader geothermal conversation might feel abstract. But the implications are concrete. Here’s what you need to know to navigate the charging landscape today—and how to plan for a geothermal-powered future.

1. Today’s Charging Reality: Plan Around the Patchwork

Even if geothermal becomes a major player, it won’t solve today’s charging challenges. EVRoutes’ data shows that the most reliable stations are those operated by Tesla and Ionity, thanks to their investment in high-power chargers (150kW+) and robust grid connections. For long-distance travel, these networks are your best bet. However, even they aren’t immune to peak-hour congestion. To minimize wait times:

• Use off-peak hours: Charge between 10 AM–2 PM or after 8 PM to avoid the morning and evening rush.
• Pre-check availability: Apps like PlugShare or EVRoutes show real-time station status, including wait times and outages. Plan detours if a station is crowded.
• Prioritize destination charging: If you’re staying overnight, use hotel or workplace chargers. They’re often slower but less competitive.

For rural or less-developed regions, battery-swap networks (like NIO in China or Amber Energy in Europe) could emerge as a viable alternative, though they’re not yet widespread in Europe.

2. Watch for Geothermal-Powered Stations

As next-generation geothermal projects come online, EVRoutes will track which stations are powered by geothermal. These could be flagged in route planners as “green energy” or “local power” options. Keep an eye out for:

• Geothermal hubs: Stations near pilot projects (e.g., Bavaria, Rhine Valley) may offer geothermal-powered charging first.
• Hybrid stations: Some sites might combine geothermal with solar or battery storage to manage peak demand.
• Lower costs: If geothermal reduces energy expenses for station operators, pricing at these stations may be more competitive.

In the short term, geothermal-powered stations are likely to be a small fraction of the total. But their impact could grow rapidly if the technology proves scalable.

3. Battery Innovations Could Reduce Your Dependence on Fast Charging

While geothermal aims to stabilize the grid side of charging, advances in battery technology could reduce your reliance on fast chargers altogether. For example:

• 800V architectures: EVs like the Porsche Taycan and Hyundai IONIQ 5 can charge from 10% to 80% in ~18 minutes. These cars are less dependent on high-power chargers and can use lower-speed stations more efficiently.
• Larger battery packs: The Tesla Model S Plaid (100kWh+) or Lucid Air (118kWh+) can cover 400–500 km on a charge, reducing the need for mid-trip charging on shorter routes.
• Battery preconditioning: Pre-heating or cooling your battery before arriving at a charger can speed up charging sessions and reduce wear.

If you’re in the market for an EV, prioritize models with these features. They’ll save you time and stress, especially on long trips.

4. Advocate for Better Charging Infrastructure

The Geretsried project highlights the need for more investment in alternative energy sources for charging. As an EV owner, you can push for change by:

• Supporting local initiatives: Encourage your municipality to install geothermal-powered chargers or battery storage solutions at public stations.
• Demanding transparency: Push charging networks to provide real-time data on wait times, pricing, and energy sources. This data is critical for route planning.
• Choosing green energy: If your home or workplace has solar panels, use them to charge your EV. If not, opt for green energy tariffs from your utility.

Closing Perspective: The Road Ahead for Geothermal and EVs

The pivot in Geretsried is a reminder that next-generation geothermal is still a high-risk, high-reward endeavor. For EV owners, the immediate priority must be navigating today’s charging challenges with data-driven route planning. But the long-term potential of geothermal could reshape the industry, making charging faster, cheaper, and more reliable.

Over the next 5 years, we expect to see:

• Pilot projects scaling up: Geothermal-powered charging stations will become more common in regions with suitable geology, such as Germany, France, and Italy.
• Grid-independent hubs: Highways and rural areas will see the first “energy-independent” charging stations, reducing strain on the grid and improving uptime.
• Policy support: Governments may subsidize geothermal projects to meet renewable energy targets, accelerating adoption.

For now, however, the best strategy for EV owners remains the same: plan routes carefully, use real-time data, and stay informed about emerging technologies. The geothermal revolution may be coming, but it won’t arrive in time to save you from a queue at the Ionity station this weekend.

Disclaimer: This analysis is based on proprietary EV charging data from EVRoutes and publicly available industry reports. It is not investment advice. Charging infrastructure and technology are rapidly evolving; always verify the latest information before making decisions.