Engineering - Ternan Energy 2025

Engineering proficiency, commercial sensitivity

Installing offshore infrastructure is a major operational challenge. The risks are high. And mistakes during the design and engineering phase can cost millions of pounds to resolve. You could even see your entire development derailed.

In a discipline where precision is crucial, we have the experienced and detail-oriented eye to make sure your infrastructure is designed with total deference to the geophysical and geotechnical nuances of your site. Not just to avoid costly mistakes in the short term. But to ensure your assets are sustainable and profitable throughout their lifespan.

You have certain commercial objectives – and we never lose sight of the bigger picture. Part of that is to undertake significant risk assessment and careful research to make sure your infrastructure isn’t overengineered – helping you to save on material and construction fees, without sacrificing safety and longevity.

How we help

Engineering expertise

A highly experienced team of geophysical, geotechnical and ocean engineering experts.

Commercial sensitivity

Engineering skill is always balanced with your commercial ambitions for development.

Straight talking

We are completely independent – advice is always deeply rooted in our clients’ best interests.

Highly responsive

We are agile and can respond quickly to new project demands.

Foundation Design

Foundation design – by definition – is a core part of your development. The phase by which your development stands or falls. Meticulous engineering skill is non-negotiable. Not just to get it right on paper, but to ensure a robust, buildable design that preserves the lifespan and long-term profitability of your development.

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In-house expertise

With a meticulous team of multidisciplinary experts, we can give you confidence in the design and installation process while helping you save on materials where feasible.

Expansive experience

We provide clear design considerations for all types of subsea foundations informed by our global experience and track record.

Subsea Cable Support

For all of the engineering awe that offshore structures invoke, it’s the subsea cables connecting your assets to the grid that allow revenue to flow. We make sure they are placed efficiently, properly protected and ready to go the distance.

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Cable route engineering

Making sure your cabling takes the most efficient route to contain your overheads.

Cable burial risk assessment

Protecting your cables from risk factors that could cause damage.

Unbridled honesty, unbiased advice. Just the way it should be.

When you choose Ternan Energy, you choose a partner that’s 100% independent. There’s no recommending needless additional work to please external shareholders. And no referring you to partner or parent companies. Our only focus is doing what’s right by you, your project and your commercial interests. That’s a promise.

Integrity: We promise unbiased honesty that is rooted in our clients’ best interests.
Independence: We are completely independent and 100% employee owned.
Innovation: We develop creative answers to complex engineering challenges – helping clients to maintain profitability in a sector where margins can be tight.

Client feedback

What do our clients think?

“Throughout the project Ternan has been easy to work with, responsive and helpful, and were a key deliver partner for the project. We will certainly be approaching Ternan again for future projects.”

Neil Crawford, Subsea Cables Package Manager, Ocean Winds

“Kent have worked with Ternan Energy on several projects now, where Ewan Fielding was the Geotechnical project engineer focal point. Ewan has consistently shown his ability to manage the project scope of work Ternan were required to deliver, including great responsiveness every time it was required and providing a clear and proactive communication to manage expectations and deliveries.”

Kent Group PLC

“…all four of the client representatives were excellent and I wouldn’t hesitate to recommend any of them to other projects or work with them again. All four were on board through some quite difficult situations for various different reasons during this campaign and all were handled very professionally with excellent communication onshore.”

Amelia Chilcott Site Investigation Package Manager  RWE Renewables UK

“Jess has and is doing an excellent job on the project in what has been a challenging situation. Jess is positive and pleasant to work with and builds rapport well. She clearly has excellent offshore geophysical experience.”

Lee Goulding, Director of Engineering, Thistle Wind Partners

We make a measurable difference for our clients. Here’s an example.

Take a deep dive into how our geophysical, geotechnical and ocean engineering expertise brings tangible benefits to a project.

All case studies

Delivering Expert Offshore Client Representation for Vattenfall Zeevonk

The Challenge Vattenfall's ambitious Zeevonk offshore wind farm—projected to deliver 2GW of wind power alongside a 50MWp floating solar farm—faced the complex challenge of conducting comprehensive site investigations 62km off the Dutch coast. As a joint venture...

Delivering Expert Offshore Client Representation for Vattenfall Zeevonk

The Challenge Vattenfall's ambitious Zeevonk offshore wind farm—projected to deliver 2GW of wind power alongside a 50MWp floating solar farm—faced the complex challenge of conducting comprehensive site investigations 62km off the Dutch coast. As a joint venture...

The more you work with us,
the more you derisk your project.

The lifecycle of any offshore development is intricately connected. Each phase – and its success – is contingent on the phases that came before. It’s why working with an independent expert can generate huge savings. When each part of the process is conducted meticulously, without losing sight of the bigger picture, the impact on costs can be transformative. Let us help.

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Geophysical and geotechnical data interpretation

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Preliminary ground modelling

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Foundation risk assessments

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You are here in the project timeline

You can come to us for expert support with each phase of your project. The more you work with us, the more you derisk your project.

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Onshore support and geotechnical interpretive update

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Integrated ground modelling

FAQs

What engineering services can you provide?

Two of our most popular services are foundation design and subsea cable support. But as a consultancy with a unique blend of geotechnical, geophysical and ocean engineering expertise, that’s just the start of how we can support offshore developments. Take a look at what we do for more. Or get in touch to discuss your project.

Is it cost effective to work with an expert?

Offshore development requires significant capital investment. Commercial sensitivity is crucial to make sure your project recoups the investment and operates profitably. That’s precisely why you should work with an expert who has the comprehensive engineering expertise and project experience to maintain commercial focus. The more you involve us in your project, the more we can derisk it and prevent costly mistakes.

Can you get the job done on time?

You have deadlines to work to. As an independent expert, we can stay nimble and responsive to incoming projects.

What do your engineering services encompass?

Our advisory services include desktop studies and open-source data collation, preliminary conceptual ground models, geophysical survey/SI specification and scoping, contractor tender review and selection support, final engineering and construction ground models and post-installation and maintenance surveys. And that’s just the start. Take a look at our full suite of services to see how we can support your development throughout the project lifecycle.

The more you involve us in your project, the more we can derisk it and prevent costly mistakes. And one more thing. Because we’re 100% independent, there’s no referring you to partner or parent companies for additional work that isn’t necessary. That’s a promise.