A specialist energy consultancy

Leading the energy industry into a low carbon future.

An independent specialist energy consultancy providing technical, strategic, environmental and consenting advice to organisations operating within the conventional and renewable energy sectors.

RE+ 2025: Clean Energy’s Largest Stage

From September 8–11, Las Vegas hosted RE+ 2025, North America’s largest clean energy event. Organised by SEPA (Smart Electric Power Alliance) and SEIA (Solar Energy Industries Association), the conference brought together more than 40,000 professionals

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Onshore Wind Conference 2025 in Edinburgh

Ryan Llewellyn, Gemma Clark, Chris Pepper, Megan Barrie, Xiaoqing Tang, and Calum Brook recently attended the Onshore Wind Conference 2025, organised by RenewableUK and Scottish Renewables at the Edinburgh International Conference Centre. The two day

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Team E&E Visits Clients in the ‘Big Smoke’

Chris Pepper (Head of Environment and Consents), Ryan Llewellyn (Consenting Lead), and Ben Parkins (Principal Consultant) recently visited London for a catch up with existing and prospective clients. Pinballing through the ‘Big Smoke’, Chris, Ryan,

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A specialist energy consultancy

An independent specialist energy consultancy providing technical, strategic, environmental and consenting advice to organisations operating within the conventional and renewable energy sectors.

Leading the energy industry into a low carbon future

Leading the energy industry into a low carbon future

Industry Leading Expertise.

Our clients span the entire energy system in the UK and overseas, and know they can count on us to deliver stellar analysis skills and innovative solutions.

Diverse capability. Seamless delivery.

As an independent SME, we take a more tailored approach to our projects – whether they are technical, strategic or environmental, or a hybrid mix – and bring together multi-skilled teams who deliver as one.

Rapport-builders. Problem-solvers.

We steer clients through the most complex of engineering issues. As an independent consultancy, we stay proactive and responsive to their needs in the ever-shifting energy landscape powering towards net-zero

Industry leading expertise

Powering the renewable energy industry towards a low-carbon future

Transmission & Distribution

TNEI is a leading provider of consultancy advice to the electricity utilities and regulators in the UK and Ireland.

Onshore Renewables

We provide specialist consultancy services to the small, medium and large scale onshore wind and solar sectors.

Offshore Renewables

TNEI has significant offshore experience gathered over many years. We have undertaken analyses for numerous wind farms, from concept, through FEED, to detailed design in UK waters, and internationally. We have been involved in all major UK offshore wind farm projects either in design stage, technical support or the due diligence phase.

Conventional & Industrial Energy

We offer specialist electrical system analysis of industrial facilities, including aluminium smelters, ports, pharmaceutical plants, petrochemical plants, power stations and oil and gas refineries and terminals.

Hydrogen

TNEI has been involved in Hydrogen since 2007 and has the knowledge to provide optimal solutions tailored for specific Hydrogen projects.
A specialist energy consultancy

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Contact us today to speak with our experts on how we can assist your energy project.

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