Geothermal Energy

Tetra Tech provides end-to-end geothermal energy services across shallow and deep geothermal applications. Our multidisciplinary team delivers robust support throughout the project lifecycle, offering technical, environmental, and commercial expertise to help clients unlock the potential of geothermal resources as part of their low-carbon strategy.

Whether developing small-scale heating schemes or deep geothermal projects, we apply our Leading with Science® approach to assess risk, ensure environmental compliance, and deliver technically and economically viable solutions. Our experience includes regulatory engagement, project consenting, geoscientific assessments, and detailed design for open- and closed-loop systems.

Feasibility and Site Selection

We help clients understand geothermal potential early by assessing site conditions, geological suitability, and commercial feasibility.

• Desktop assessments of geological potential
• Site walkovers and geotechnical surveys
• Resource characterisation and yield assessments
• Cost-benefit and risk evaluation
• Support with funding and planning strategy

Planning and Consenting Support

Our planning specialists guide clients through the regulatory landscape to streamline approval processes and reduce project delays.

• Environmental impact assessment (EIA) coordination
• Planning applications and supporting documentation
• Stakeholder and public consultation
• Regulatory liaison and submission strategy
• Permitting for drilling and abstraction/discharge

Geothermal Design and Engineering

We design technically robust geothermal energy systems tailored to project needs and site-specific conditions.

• Concept and detailed design of open- and closed-loop systems
• Thermal modelling and efficiency optimisation
• Integration with building systems and district heating
• Materials and technology specification
• Construction and commissioning support

Geoscience and Environmental Services

Our geoscientists and environmental consultants provide the evidence base to support sustainable geothermal project development.

• Geological and hydrogeological investigations
• Ground source heat pump (GSHP) assessments
• Seismic risk evaluation and mitigation
• Groundwater protection strategies
• Biodiversity and habitat assessments

Operations and Monitoring

We support post-installation operations to ensure long-term performance and compliance.

• System performance monitoring
• Environmental and regulatory compliance checks
• Troubleshooting and operational support
• Data analytics and reporting
• Asset management planning