Introducing the HPU-M

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The GeoPura HPU-M is a mobile, trailer-mounted hydrogen power unit, designed for rapid deployment and short-term, high-mobility applications. With an onboard hydrogen storage system, compact footprint, and plug-and-play setup, the HPU-M is ideal for temporary power, off-grid sites, and multiple-location operations.
Providing 250kW of clean, reliable energy, the HPU-M eliminates CO₂ emissions, improves air quality, and reduces noise pollution, ensuring zero-impact power without compromising performance or reliability.
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HPU-M
The HPU-M combines power and mobility, offering a fully self-contained hydrogen power solution that can be transported and deployed with minimal setup requirements.
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What is a HPU-M?
The GeoPura HPU-M is a mobile, self-contained hydrogen power unit developed in response to industry demand for flexible, zero-emission energy. Designed for temporary and short-term applications, the HPU-M has been proven at festivals, sporting events, and film shoots, delivering clean, silent, and reliable power without reliance on fossil fuels. Unlike diesel generators, which produce CO₂, NOx, and particulate matter, the HPU-M runs on green hydrogen, ensuring sustainable energy wherever it’s needed.
Where is a HPU used?
With integrated fuel storage, a compact design, and rapid setup capabilities, the HPU-M is perfect for high-mobility deployments, including remote construction, film production, outside broadcasts, and live events.

Learn more about how HPUs work
Find out more about how a HPU generates sustainable power here – from green hydrogen generation to clean electricity on demand. The only output is water.
Not All Power Is Created Equal
For decades, diesel generators have been the go-to solution for off-grid and backup power. But the true cost of diesel extends far beyond the fuel bill. Every litre of diesel burned releases around 2.68kg of CO₂, along with nitrogen oxides (NOx) and particulate matter (PM), air pollutants linked to asthma, cancer, cardiovascular disease, and cognitive decline. In fact, diesel generators can emit up to 40 times more NOx than modern road vehicles.
Even alternatives like HVO (hydrotreated vegetable oil), often promoted as “clean diesel,” still produce NOx and particulates, failing to address the significant public health impacts of combustion-based power.
By contrast, GeoPura’s Hydrogen Power Units (HPUs) emit only water and a little heat. That’s it. No CO₂. No NOx. No soot or smoke. Just clean, quiet electricity.

Example Weekly Emissions Savings (Based on 5,000 kWh Power Requirement):
Emissions Type
Emissions Saved Per Week (kg)
CO₂
4,875
NOx + HC
47.27
CO
25.45
Particulate Matter
1.82
HPU Benefits
Zero Emissions & Air Quality Protection
Safe, Reliable & Quick to Deploy
Ultra-Mobile & Compliant
Near-Silent Operation

Did you know?
Temporary diesel generators emit up to 1,200 times more NOx and 35 times more particulate matter per kWh than the UK grid. This makes them one of the dirtiest sources of power.
(Source: European Environment Agency, 2022)

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Manufactured in collaboration with Siemens Energy
GeoPura manufactures its Hydrogen Power Units (HPUs) at scale in collaboration with Siemens Energy, ensuring high-quality, precision-engineered power solutions. Our UK-based production facilities guarantee reliable supply, scalability, and full compliance with safety and environmental standards.
See how we are making clean power a reality for industries worldwide.
HPU
Specification
For full specifications, see the HPU-M Technical Spec Document
Performance
Power Output
250kW (400V, 3-phase AC, 50/60Hz)
Hydrogen Capacity
Up to 100kg onboard MCP storage
Deployment Time
Less than 1 hour
Road Compliance
Fully compliant with UK/EU road regulations
Main Components
Proton Exchange Membrane Fuel Cell (PEMFC)
Integrated high-efficiency battery storage system
Advanced power inverters
Fuelled by 100% Green Hydrogen – Operates alongside battery storage for uninterrupted clean power
Secure remote monitoring and control
HPU
Comparison Table
The GeoPura HPU is a superior alternative to diesel generators, HVO, and standalone battery systems, offering cleaner, safer, and more adaptable power.
Emissions
Fuel Source
Reliability
Noise
Air Quality
Refuelling
Scalability
Geopura HPU
Zero
Green Hydrogen
High
Low
No Pollutants
Simple & Safe
Modular
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HPU-M Case Studies
Discover how our customers are reducing emissions, improving air quality, and delivering critical power across industries.
HPU-M Related Resources
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HPU-M Data Sheet
