Hitachi Energy’s Award-winning Hydrogen-powered Generator Inspires the Next Era of Sustainable Energy

The HyFlex earns two major 2025 awards for tackling urgent energy challenges and advancing sustainable solutions.

At the intersection of innovation and sustainability, Hitachi Energy’s HyFlex™ hydrogen-powered generator is gaining international recognition, earning two major awards for addressing urgent energy challenges and advancing zero-emission port operations.

Presented at Elfack 2025, Northern Europe’s largest energy and electrification fair, HyFlex received the Swedish Energy Prize – Jury’s Choice, honoring its contribution to clean, off-grid and grid-connected power generation. A panel of industry experts selected the solution for its measurable impact and potential to reduce emissions in distributed energy applications where grid access is limited or unavailable.

HyFlex was also named Ports and Harbor Innovation of the Year at the Electric & Hybrid Marine Awards 2025, organized by Electric & Hybrid Marine Technology International magazine. The award celebrates achievements in maritime electrification, recognizing the hydrogen-powered generator for enabling zero-emission shore power at ports, offering a cleaner and quieter alternative to running vessel engines at berth.

HyFlex brings clean and reliable power to locations that have traditionally depended on diesel, enabling electrification where the grid connection is unavailable, and sustainability was once unimaginable.

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A zero-emission power generator that meets regulatory requirements

As global decarbonization efforts accelerate, hydrogen is gaining momentum as a clean energy carrier that can reduce emissions in hard-to-abate sectors. HyFlex produces electricity through an electrochemical reaction between hydrogen and oxygen, releasing only water and heat, with no combustion and zero direct emissions of carbon dioxide, nitrogen oxides, or sulfur oxides during operation. As environmental regulations tighten under international climate agreements and cross-border sustainability frameworks, companies face pressure to adopt cleaner technologies to secure permits and avoid compliance setbacks.

A 500 kilovolt-amperes (kVA) HyFlex unit can displace up to 800 tons of diesel annually, preventing around 2,900 tons of CO₂ emissions 1. To generate one megawatt-hour of electricity, it consumes approximately 70 kilograms of green hydrogen. These savings are notable in the context of global energy-related CO₂ emissions, which reached a record 37.4 billion tonnes 2 in 2023.

Key applications include construction sites and noise- or pollution-sensitive areas; mining operations powering electric equipment such as dump trucks and excavators; critical facilities requiring off-grid power and heat, including hospitals, data centers, and hotels; and shore-to-ship power at ports, offering a clean and quiet alternative to running vessel engines at berth.

From innovation to implementation

With a comprehensive portfolio spanning the green hydrogen value chain, Hitachi Energy supports the growing demand for clean energy solutions. In addition to hydrogen-to-power systems like HyFlex, the company also delivers power-to-hydrogen (grid-to-stack) solutions that optimize the entire power supply – from high-voltage grid connections to electrolyzer stack terminals.

As the hydrogen ecosystem scales toward gigawatt-level projects, Hitachi Energy stands ready as a partner of choice – delivering power supply systems with the highest levels of efficiency, reliability, and power quality to accelerate the global energy transition.

Footnotes
¹ https://www.hitachienergy.com/news-and-events/press-releases/2025/05/hitachi-energys-pioneers-hyflex-hydrogen-powered-generator-with-shore-power-system-for-ships-at-berth
² CO2 Emissions in 2023 report by
the International Energy Agency. https://www.iea.org/reports/co2-emissions-in-2023/executive-summary