When it comes to the future of clean energy, the conversation often centers around choosing the “best” technology. Batteries are efficient and widely available, while hydrogen offers unparalleled versatility and scalability. But why choose one when you can combine the strengths of both? At GeoPura, we’ve done exactly that with our Hydrogen Power Unit (HPU). This self charging hybrid hydrogen-battery solution delivers clean, reliable energy wherever it’s needed, offering a smarter, more sustainable way to power the future.
Batteries: Quick, Reliable, but Limited
Batteries are incredibly useful in the renewable energy landscape. They’re quiet, fast, and ideal for short-term energy storage. However, their limitations become apparent for large-scale power generation:
- Energy Storage Limitations: Batteries can only store a finite amount of energy. When depleted, they require downtime for recharging, tying them to grid infrastructure.
- Environmental Impact: Battery production relies on the extraction of raw materials like lithium and cobalt, which has significant environmental and social costs. Everything we do has a cost, but limiting that impact where possible makes sense environmentally and financially. Hybrid battery/hydrogen systems dramatically reduce the size of the battery required to optimally support an application.
- Range and Scalability: Batteries perform well for localised energy needs but struggle to power remote or high-demand applications sustainably for long durations. Batteries are great for topping up quickly, but not built to handle an entire house or business for days on end.
Hydrogen: Clean, Scalable, and Powerful
Hydrogen, on the other hand, has significant benefits:
- Unlimited Energy Potential: When produced using renewables, hydrogen is clean, abundant, and infinitely scalable.
- Versatility in Use: It powers fuel cells, recharges batteries, and generates electricity sustainably.
- Off-Grid Independence: Hydrogen systems can operate autonomously, making them ideal for remote areas or sites with fluctuating power needs.
Picture hydrogen as a tanker of renewable fuel for the 21st century. Versatile enough to power anything from live events to construction projects while keeping emissions at zero.

The Hybrid Hydrogen-Battery Advantage
GeoPura’s HPU represents the best of both worlds, seamlessly combining the instant response of batteries with the long-term, emission-free power of hydrogen. This self charging hybrid approach ensures the technology delivers clean energy without the trade-offs associated with stand-alone systems.
By harnessing large-scale renewable energy sources such as solar and wind, GeoPura produces green hydrogen through electrolysis. This hydrogen is stored and transported to sites, where it seamlessly recharges the HPU’s advanced battery system.
Key Benefits of GeoPura’s HPU:
- Self-Charging: Hydrogen fuels the fuel cell, recharging the integrated battery and enabling a continuous, uninterrupted energy output.
- Long-Duration Capability: Unlike batteries alone, which require frequent recharging, HPUs operate for extended periods without interruption for days, weeks, months, even years.
- Reduced Resource Intensity: By integrating smaller batteries, HPUs minimise the environmental impact associated with raw material extraction, such as lithium and cobalt mining.
- Emission-Free Charging: Unlike grid-connected batteries, which may rely on fossil-fuel-generated electricity, GeoPura’s HPUs deliver 100% clean, renewable power.
The GeoPura HPU isn’t just a replacement for diesel—it’s a smarter, cleaner, and more adaptable energy solution. With GeoPura, you can reduce emissions, enhance reliability, and reduce downtime associated with charging.
Real-World Applications: Powering Progress Across Sectors
Our growing fleet of HPUs is already making an impact across a range of industries:
- Construction: In partnership with major firms like HS2 and Balfour Beatty, our HPUs are delivering clean energy to sites traditionally reliant on diesel, while supporting electrification and EV charging.
- Events and Festivals: At the Isle of Wight Festival, our HPUs replaced HVO generators, reducing all harmful emissions while providing reliable, silent energy. Events like the Latitude Festival and Touch Rugby World Cup have also benefited from this clean power solution.
- Broadcasting: The BBC and the DP World Golf Tour have relied on our HPUs to power live broadcasts, showcasing the technology’s ability to deliver critical, uninterrupted power.
Investing in the Future of Renewable Energy
GeoPura’s vision doesn’t stop at deploying HPUs. We’re building the foundation for a clean energy transition.
- Expanding Our Fleet: We’re scaling up to deploy over 3,600 HPUs by 2033, displacing more than ten million tonnes of CO₂ over their operational lifetimes.
- Advancing R&D: Our team is constantly innovating to meet diverse power needs, from smaller temporary off-grid applications to large-scale industrial demands.
- Green Hydrogen Production: We’re continuing to invest in green hydrogen production and logistics at our Midlands and South Yorkshire based facilities to ensure a sustainable fuel supply for our expanding fleet. As one of the largest hydrogen producers in the UK, we’re also supporting wider adoption across the sector.
The Future is Hybrid
The transition to renewable energy isn’t about choosing between batteries and hydrogen, it’s about combining them to create optimised solutions for every need. GeoPura’s HPU proves that hybrid technology can deliver clean, limitless power, anywhere and everywhere it’s needed.
Contact GeoPura today to discover how our HPUs can support your next project.