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HyFlex® Compact

Hybrid generator and flexible power hub

HyFlex® Compact is a hybrid generator and flexible power hub that combines hydrogen fuel cells, high performance batteries and power electronics into a single integrated system. It provides access to reliable electricity in environments where grid connections are limited, unavailable, or not designed for current demand levels.

HyFlex® Compact supports customers in reducing emissions and advancing toward decarbonization targets while maintaining a stable and continuous power supply. By combining multiple technologies into a single integrated solution, it also simplifies operations and improves efficiency in temporary and off‑grid environments, where dependable power is critical to business continuity. It enables stable, zero emission electricity and can operate as a mobile microgrid connecting multiple energy sources.

Key Features:
HyFlex® Compact combines hydrogen fuel cells, battery storage and advanced power electronics within a single, integrated system designed to adapt to different operational needs. The solution is configurable, allowing it to match varying load profiles and application conditions, while its architecture enables connection to multiple energy sources and supports microgrid functionality. Its compact and portable design allows deployment in demanding environments, delivering stable power with low environmental impact. The result is a solution that brings together flexibility, reliability and system integration, aligned with the broader transition toward electrified and low‑emission energy systems.

Key advantages

Plug-and-play design

Simple setup and operation

Portable

Convenient deployment wherever power is needed

Fast start-up

Ready for operations in only few seconds

Robust

Reliable design for outdoor use in various environments

Clean

No carbon-dioxide and particulate matter emissions

Full control

Managed and monitored both locally and remotely

HyFlex® Compact redefines portable power generation by combining advanced fuel cell technology with high performance batteries in a fully integrated hybrid system. It delivers clean and reliable power with both fast response and long duration, suitable for temporary or permanent installation, while reducing operating costs through flexible energy use.

Nicholas Reppas
Global Product Manager, Hydrogen Solutions

HyFlex® Compact Main Configurations

HyFlex® Compact - 110 kVA (1 Battery, 1 Fuel Cell)

Best for applications with lower energy and power needs such as smaller satellite sites

HyFlex® Compact - 250 kVA (2 Battery, 1 Fuel Cell)

Best for loads with high peaks and low off-peaks such as construction, UPS backup and intermittent EV charging

HyFlex® Compact - 250 kVA (2 Battery, 2 Fuel Cell)

Best for or off-grid sites with high energy applications such as frequent EV charging and electrified construction

Applications

Construction sites are facing growing demand for clean electrification. HyFlex® can provide 24/7 site electrification, charging power, and heat leveraging its flexible hybrid architecture, with no CO₂, no NOX, no soot, and low noise.

Spotlight

Bringing clean power to construction sites with HyFlex® Compact  

HyFlex® Compact is Hitachi Energy’s hydrogen fuel cell-based power generator designed for various applications, including power generation on construction sites. It is emission-free and low noise during operation.

FAQ's

Frequently Asked Questions

HyFlex® Compact differs significantly from conventional diesel generators by replacing fossil‑fuel based power generation with a hybrid system that combines hydrogen fuel cells and batteries. While diesel generators rely on combustion, HyFlex® produces electricity through electrochemical processes, resulting in zero emissions during operation and eliminating pollutants such as CO₂, NOₓ and particulate matter.

The solution is mainly for equipment rental companies and construction companies, as well as public transportation operators, port authorities, mining companies, event organizers and EPCs, particularly for temporary or off-grid applications.

HyFlex® Compact's portable design allows deployment in demanding environments, delivering stable power with low environmental impact. 

Hitachi Energy is leading the advancement of a sustainable, flexible and secure energy system.

Let’s work together for an efficient and reliable energy future.