Award-winning specialist energy consultancy
Leading the energy industry into a low carbon future.
A multi award-winning, independent specialist energy consultancy providing technical, strategic, environmental and consenting advice to organisations operating within the conventional and renewable energy sectors.
Adopting Common Information Model (CIM) and Common Grid Model Exchange Specification (CGMES) for GB Distribution Network Assessment
The first Common Information Model (CIM)-based Long-Term Development Statements (LTDS) models were published by Distribution Network Operators (DNOs) in Great Britain in November 2025. Here’s TNEI’s take on them, what that means, and what’s coming
Successful Delivery of Fully Grid Code Compliant, Co-Located BESS and Solar PV Project
TNEI is delighted to share the successful delivery of a full UK Grid Code Compliance (GCC) study and model submission for a co-located Battery Energy Storage System (BESS) and Solar PV project. The project combined solar generation
TNEI Africa Celebrates 10 Years
What started as a small power system consultancy in Cape Town has grown into a trusted partner supporting projects across the energy sector. Today, TNEI Africa (Pty) Ltd works alongside developers, contractors, OEMs and fellow consultancies to deliver
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.
- Operating since 1974
- Technical & strategic advice
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
