CGL partners with clients across the energy sector to provide expert geotechnical and environmental advice, enabling the delivery of reliable, sustainable and compliant energy projects.

As the UK accelerates its transition towards a net-zero future, the energy sector must deliver infrastructure that’s not only safe and sustainable but built to last. CGL is at the forefront, providing expert ground engineering solutions that empower energy developers to meet these demands with confidence. CGL, as part of the Phenna Infrastructure Division, provides trusted geotechnical and geoenvironmental consultancy services and a turnkey approach to help energy developers and operators meet their commitments. With over 200 energy projects completed across the country, we are proud to support the UK’s green energy transition.

Expertise Across the Energy Sector

CGL supports a wide network of clients in the energy and power industries, including those working on:

  • Generation facilities and Renewables, including Wind Farms, Solar Farms and Ground Source Heat Pump Installations
  • Transmission and Distribution Infrastructure, such as Overhead Line Towers (OHLs), Underground Cables and Substations
  • Storage, including Battery Carbon Capture (BESS)

Our award-winning technical expertise and long-standing reputation make us a trusted partner for developers, contractors, and asset owners seeking innovative, value-engineered ground solutions that reduce risk and optimise outcomes..

Our Energy Sector Services

Infrastructure Risk Assessment

We identify and manage ground-related risks and our assessments give clients confidence to progress projects with reduced exposure to delays and unforeseen liabilities.

Ground Investigation

Our UK-wide teams carry out detailed investigations in challenging and remote locations, delivering accurate ground models to inform design decisions.

Geotechnical Design

Using innovative analysis and practical experience, we design robust and cost-effective foundations and support structures that ensure safety, stability, and longevity.

Material Management

From contaminated land assessments to sustainable reuse of site-won materials, we develop strategies that minimise environmental impact while maintaining compliance with legislation.

Health & Safety Management

Safety is at the core of everything we do. Our staff are trained to the highest industry standards, including National Grid Competent Person BESC, HSG47, CSCS, and Safety Passport accreditations. 

Part of the Phenna Infrastructure Division

Choosing CGL and this one-stop shop model reduces complexity, improves efficiency, and ensures seamless collaboration across disciplines

Supporting Energy Sector Processes

Whether it’s refurbishment, renewal, or new build, CGL helps clients make informed, cost-effective decisions.

  • Feasibility and Optioneering: We provide clear advice on ground-related issues during early-stage planning, supporting investment decisions and route selection.
  • Value Engineering: We scope works with efficiency in mind, balancing safety, performance, and cost.
  • Programme and Budget Alignment: By working closely with client teams, we deliver solutions that fit stringent construction programmes and financial constraints.

This integrated approach ensures our clients maintain control over costs, timeframes, and compliance.

Specialist Geotechnical and Geoenvironmental Consultancy

Clients trust CGL to deliver practical, compliant solutions tailored to complex site conditions. Our teams are adept at working in complex conditions, including brownfield and ecologically sensitive sites, where careful management of environmental risk is essential.

By combining technical excellence with a collaborative approach, we ensure our clients’ projects remain safe, sustainable, and resilient in the face of future demands.

Why Choose CGL?

  • Award-winning expertise in geotechnical and geoenvironmental consultancy.
  • A proven track record in energy projects of all scales, from major national infrastructure to local renewable schemes.
  • Highly qualified and safety-focused staff, with industry-recognised accreditations.
  • A commitment to innovation, sustainability, and value-driven design.
  • UK-wide reach with local knowledge, enabling us to respond quickly and effectively wherever projects are based.
  • Trusted by our clients and suppliers

Part of the Phenna Infrastructure Division: A One-Stop Shop

CGL is proud to be part of the Phenna Infrastructure Division, a trusted group of companies delivering excellence in infrastructure support services across the UK and Ireland. Being part of this division gives our clients access to a comprehensive suite of services under one roof, including:

  • Environmental and Ecological Assessments
  • Geotechnical and Geoenvironmental Consultancy
  • Materials Testing and Quality Assurance
  • Pavement Investigation and Lifecycle Planning
  • Infrastructure Asset Management

Backed by 26 accredited laboratories, 350 site engineers, and over 1,500 infrastructure specialists, Phenna delivers the scale, resilience, and innovation needed to support the UK’s Pathway to 2030 and Net Zero goals

For our clients, it means faster delivery, reduced risk, and confidence that every stage of their project is supported by industry-leading expertise.

Powering the UK’s Energy Future

The challenges facing the UK energy sector are significant: rising demand, regulatory uncertainty, the drive for renewables, and the need for resilient infrastructure. At CGL, we bring the technical capability, practical experience, and collaborative ethos needed to overcome these challenges and deliver long-term value. With over two decades of experience, a proven safety record, and the backing of the Phenna Infrastructure Division, CGL is uniquely positioned to support energy clients as they build the infrastructure of tomorrow.

Energy Sector Related Projects