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.
About TNEI
TNEI's Purpose
We are very proud of our purpose which describes what we aim to achieve and outlines why our staff work at TNEI.
Who we are
What we do
How we do it
Why we do it
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

TNEI Obtain Section 36 Consent for a 200MW BESS in South Lanarkshire
TNEI Submitted a Section 36 Application on behalf of Zenobe for a 200MW on land adjacent to Carlisle Road at Coalburn in South Lanarkshire. TNEI initially


TNEI Obtain Section 36 Consent for a 100MW BESS in North Ayrshire
TNEI Submitted a Section 36 Application on behalf of NEP for a 100MW BESS on land north and west of High Boydstone Farm in North


Coylton Greener Grid Park
TNEI acted as Planning Agent on behalf of Statkraft UK Ltd for the preparation and submission of a major planning application to East Ayrshire Council


Shetland Battery Energy Storage System (BESS)
TNEI acted as the Planning Agent on behalf of Zenobe Energy Limited for the preparation and submission of a Section 36 Application to the Energy


Distributed ReStart
The Distributed Restart project was a partnership between National Grid Electricity System Operator (ESO), SP Energy Networks (SPEN) and TNEI that was awarded £10.3 million


ESR Tender Rounds
TNEI has supported several clients through all stages of the Electricity System Restoration (ESR) tender process both in the South East and the Northern tenders.
