The early years

Hydrogenus Energy Limited was initially known as Bennett Clayton Pty Ltd and was established in 2008 by John Bennett and Marcus Clayton, combining decades of expertise in engine performance, alternative fuels, and advanced engineering.

The company's mission was to pioneer LPG and natural gas conversions for heavy-duty engines and to develop clean energy systems for buildings and agriculture. The company has consistently delivered reliable, efficient, and environmentally responsible solutions.

Their projects span high-efficiency tri-generation systems for commercial buildings, innovative engine refurbishments for transport and industry, and custom conversions that help clients reduce emissions and operational costs. Bennett Clayton’s commitment to research, technical excellence, and sustainable energy has earned them industry recognition and a reputation for setting new benchmarks in clean technology across Australia.

Hydrogenus Energy Limited, ACN 163 460 884 is an Australian unlisted public company.

A Hydrogen Future

Development of a modified internal combustion engine ("ICE") began in March 2021, Hydrogenus Energy able to demonstrate a hydrogen fueled Electrical Generator powered that:

Operates safely and efficiently using Hydrogen as its only fuel
Emits zero carbon, SOx, NOx and zero particulate matter
Has been developed to be robust and easy to maintain, using low pressure hydrogen injection

Has a very high block load capability, staying within 1% of the targeted speed eve as the load is changed from 20kW to 90kW
Output remains at about 50Hz, with no perceptible change in engine speed; and
Achieves an efficiency of 43% of electrical output compared with the energy of the fuel consumed. This is already better than any combustion engine and we believe we can improve this further.

The Hydrogenus Energy modified Internal Combustion Engine

Hydrogenus Energy’s Intellectual Property includes the physical changes to an engine to enable it to operate safely, effectively and efficiently using Hydrogen as its fuel; and the operating parameters for the Engine Control Unit (ECU), which governs the engine’s operations.

Hydrogenus sources our engines from NPT in China.

Weifang Naipute Gas Genset Co., Ltd, known as NPT, is a globally recognised leader in the production of internal combustion engines, with NPT engines being exported to nearly 40 countries and regions, such as Germany, the United Kingdom, America, Japan, Czech, Spain, Sri Lanka, Italy, Australia and France, etc., and more than 100 projects have been carried out and are in operation.

Australian Provisional Global Patent Application No. 2024900658.

All of the 33 claims made in our patent application have industrial applicability;
20 of the claims made are novel; and
8 of the claims are inventive.

Hydrogenus Energy engines are sourced from the internationally recognised leader in internal combustion engines, NPT.

Our Team

Mark Smith

Non-Executive Chairperson

Mark has over 40 years’ experience in management and geoscience in energy with BHP, and Karoon Energy, of which he was a founder. Mark was Executive Director & Exploration Manager with Karoon, growing its value from $5m to $1,500m.

Marcus Clayton

Chief Technology Officer & Executive Director

Marcus is formally trained in electronics. He joined John Bennett to form Bennett Clayton in 1990, developing an Internal Combustion Engines to operate using alternative fuels, including alcohol fuels, LPG for diesel buses and natural gas for back-up generators.

Shay O'Brien

Chief Executive Officer

Shay has a background in accounting, HR, and senior management in small and medium sized enterprises across a range of business sectors. Prior to Hydrogenus Energy, he was General Manager of a group of business in the scientific instrumentation and supplies industries.

Pieter Bruinstroop

Executive Director, CFO & Company Secretary

Pieter has degrees in economics and finance and a long history as an analyst in energy and mining Markets. Peter has extensive experience in business case and viability modelling in wind and solar power in the 1980s and as a fund manager and corporate adviser since 1996.

Roger Walker

Chief Strategy Officer

Roger has a degree in Business, initially practiced as a Real Estate Valuer and has worked for 25 years in the Commercial Property and Energy Infrastructure sectors. He has delivered significant award-winning projects and has worked on and advised government panels at State and Federal level in sustainability in the Built Environment.

About Us

The early years

A Hydrogen Future

The Hydrogenus Energy modified Internal Combustion Engine

Our Team

Mark Smith

Marcus Clayton

Shay O'Brien

Pieter Bruinstroop

Roger Walker

Our Partners

Important Documents

Introductory Videos

Corporate Information

News Letter