A specialist energy consultancy
About TNEI
TNEI is an independent specialist energy consultancy providing technical, strategic, environmental and consenting advice to organisations operating within the conventional and renewable energy sectors.
We have a range of skills tailored specifically to answer the issues associated with increased distributed renewable generation and the integration of low carbon technology.
Our consultants have industry leading expertise in grid code compliance studies, noise assessment and modelling of innovative, smart grid technologies. These skills are complemented by a number of other technical services; from GIS and consenting, to energy market analysis, allowing us to confidently guide clients through projects from concept to delivery.


What TNEI can do
Why work with TNEI
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
Key Contacts
Case Studies

Scottish Government/ DECC Scottish islands project
TNEI and Baringa Consultants worked together to deliver this project to DECC and The Scottish Government. The study was overseen by a steering group comprising

Scottish Enterprise Multi-Terminal Test Environment (MTTE)
This project was undertaken by TNEI for Scottish Enterprise, with Scottish and Southern Energy (SSE) one of the key project stakeholders. The aim of this

Ofgem ITPR (Integrated Transmission Planning and Regulation) criteria to determine incumbent or competitive delivery
TNEI, with input from Pöyry, delivered this project to Ofgem’s offshore regulatory team with the aim to determine which onshore reinforcements would potentially be suitable to

Engineering design for Moray Firth Offshore Wind Farm
TNEI was appointed by EDP Renováveis (EDPR) and Repsol to develop, test and optimise concept engineering designs for the array electrical layout, electrical infrastructure and

Environmental, consenting and grid connection support
TNEI provided environmental, consenting and grid connection support for a 17.5MW CHP ready gasification plant on the site of the former Drakelow Power Station in

Power systems analysis software application
TNEI has been working on innovative projects since the company was founded. We have supported the development of nine NIC and LCNF projects which were