ZEP 250

Revolutionizing the transition to Zero Emission Power Solutions

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Power Output

250 kW

Fuel Type

Gaseous H2



The Complete Solution for Hydrogen Fuel Cell Power

Zero Emission Industries’ ZEP 250 is the world’s first turnkey hydrogen fuel cell plug-and-play powertrain. This system takes learnings from its predecessor, the US Coast Guard approved Sea Change powertrain (pictured left), and achieves superior output in a lighter, more compact form at reduced equipment and operating costs. The ZEP 250 utilizes novel safety designs to ensure regulatory acceptance and maximize operational safety.

System Features

•   Simplified system connections for quick installation
•   Flexible and modularized design
•   Scalable from single 250kW system to multi-megawatt
•   Simplified and predictive maintenance for reduced operating costs
•   Remote monitoring and diagnostic capabilities
•   Software and data logging
•   No hydrogen expertise required
•   Explosive atmosphere prevention
•   Continuous monitoring and automatic hardware shutoff at 25% LFL
•   Short circuit protection
•   Fully marinized
•   Produces pure water for drinking
•   Fully integratable with ZEI’s IMO-compliant, USCG-approved fueling system

Transition to a world of zero emissions

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Cruise ships
Crew Transfer Vessels
Pilot Vessels
Offshore vessels
Windfarm Vessels
Tug boats
Push boats
Fishing vessels
Port equipment
Recreational Watercraft
Container Ships

System Regulations and Standards

Planned for Class Approval

DNV-GL, Lloyds, Bureau Veritas, and/or ClassNK

Hazardous Areas

Electronics approved and tested to IEC 60079 standards

Vibration and Shock

IEC 60068-2-6

Pitch and Roll

+/- 30 degrees

Hydrogen Piping

ASME B31.12, CGA G-5.5

Hydrogen Components

EC79 or UN/ECE R134

Hydrogen Tanks

EC79, UN/ECE R134, and/or HGV-2

Benefits Our Hydrogen System Brings:


Fuel cells can be scaled up/down depending allowing for a wide range of use on various vessel types and operation needs.


Fuel Cells are Solid State and the rest of the power train has few moving parts resulting in a system that is significantly more reliable than today's internal combustion engines.

Low Maintenance

Fuel cell systems reduce operational and maintenance cost by 20% to 50% through


Hydrogen has the same operational flexibility that current vessel experience with traditional fuels.


A fuel cell power train can be distributed across the vessel removing the need for an "engine room" and allowing for unique and fully redesigned vessel layouts.


An electrified system like a fuel cell allows for remote monitoring and real time operational intelligence.