Specialist Geothermal Engineering
Engineering the underground energy transition
Fourth Element Energy is a boutique engineering consultancy delivering world-class expertise in geothermal systems, ground source heat pumps, and underground thermal energy solutions for the low-carbon built environment.
Specialist Engineering Expertise
Our Services
Geothermal Feasibility Studies
Comprehensive assessment of geothermal potential for your site, including geological analysis, thermal demand evaluation, and economic modelling.
Energy Geostructures Engineering
Innovative integration of thermal exchange systems within building foundations, retaining walls, and underground structures.
Thermal Response Testing
In-situ testing to characterise ground thermal properties and validate design assumptions with high precision.
Underground Thermal Energy Storage
Design of systems to store thermal energy underground for seasonal load balancing and improved efficiency.
About 4EE
We combine rigorous academic research with practical engineering expertise. Our boutique model ensures that every project receives direct involvement from our senior engineers, delivering the highest standards of technical excellence and innovative problem-solving.
Featured Work
Selected Projects
Melbourne Metro Tunnel
Geothermal feasibility assessment for one of Australia's largest transport infrastructure projects.
High-End Residential GSHP
Complete ground source heat pump design for a premium residential development in Melbourne.
Footscray Geothermal Project
Energy geostructure integration for sustainable building foundations.
Why Choose Fourth Element Energy
Research-Led Expertise
Founded by leading academics with decades of combined research and industry experience in geothermal engineering.
Engineering Precision
Rigorous analytical methods and validated numerical tools ensure reliable, optimised designs.
Practical Innovation
We translate cutting-edge research into practical solutions that deliver real-world performance.
Independent Advice
As a specialist consultancy, we provide unbiased technical guidance focused solely on project success.
Our Team
Expert engineers, innovative thinkers
Prof Guillermo A. Narsilio
Founder & Lead Engineer
Leading expert in geothermal engineering with over 20 years of research and consulting experience.
View profileDr Luis Bandeira Neto
Senior Engineer
Specialist in thermal response testing and geothermal system design.
Dr Qusi Alqawasmeh
Senior Engineer
Expert in energy geostructures and sustainable foundation systems.
Dr Annie Gu
Senior Engineer
Specialist in ground source heat pump systems and thermal modelling.