About Us

Contact Us

Email: gaia@gaia-enviro.com
Visit: 323 Learmonth Rd, Ballarat, VIC

Gaia EnviroTech is the bioenergy and waste management division of Gekko Systems. Our focus is on solving two critical challenges that many industries face; the ever increasing cost of managing high volumes of organic waste, and the ability to source on demand renewable energy solutions to run business operations and reduce carbon footprint.

Based in the regional Victorian city of Ballarat, Gaia EnviroTech was born out of a conversation between Gekko Systems Technical Director, Sandy Gray, and a local pig farmer, Jock Charles, who had been running an anaerobic digester on his pig farm for over 20 years treating pig manure.

The conversation revolved around the question of why waste to energy solutions are not more utilised in Australia. Not only will the application of bioenergy help solve the ever growing waste problem, but it will also contribute to reducing carbon emissions.

Utilising Gekko Systems’ 25+ years as a leader in the mining, technology and  services sector (METS) and the company’s extensive engineering and design capability, the Gaia EnviroTech anaerobic biodigester, and rapid composter were invented and successfully commercialised.

Gaia EnviroTech now provides end-to-end waste management and bioenergy solutions that are modular, scalable and designed for the local context.

Gekko Systems

Parent company Gekko Systems (Gekko) was founded in 1996. Gekko is a world leader in the development or energy efficient technologies for the global mineral processing industry.

Head office located in Ballarat, Gekko specialises in the design, manufacture, installation, service provision, operation and automation of innovative mineral processing equipment.

The company has installations in over 50 countries around the world, and has branch offices / agents in Perth, Vancouver, Moscow, Johannesburg, South America and West Africa.

Our people

Gaia EnviroTech’s motto of ‘smarter together’ provides the platform for building relationships and collaborating with our clients to ensure each solution is tailored to their needs.

Elizabeth Lewis-Gray


Sandy Gray

Technical Director

Michael renehan

General Manager

Andrew Edmonston

CEO – Gekko

Luke Brennan

Business Development

Dr. Lachlan Spiers


Georges Delemontex

Senior Engineer

glyan james

Mechanical Engineer

Marleen Gort


Gavin Lynch

Senior System Analyst

Download the Biodigester Technology Profile

Modular in design, the Gaia EnviroTech anaerobic biodigester is both highly configurable and efficient. Download the technology profile to learn more.

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Download theComposter Technology Profile

Designed and manufactured in Ballarat, Victoria, the system is easily transportable and quick to install on site. Download the technology profile to learn more.

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Downloadthe Diary Effluent Case study

The system in this case study was installed in November 2018 as a 12-month research and development project to establish viability of an anaerobic digestion plant designed to convert dairy effluent to energy and minimise odour. 

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Download the Capability Profile

The Capability Profile contains information on:

- Business Overview

- Solutions

- Installations

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