Key TNEI contacts

Rachel Hodges

Managing Director

Rachel has been at TNEI since 2005 and has over 15 years’ experience of working in the power and energy sector covering major project design and specification through to infrastructure planning. She has strong design, development, investigation and project management skills with considerable experience in business development, contract management, CDM and managing multi-functional teams with diverse skills and experience.

In her role as Managing Director, Rachel is responsible for the strategic direction of TNEI, supporting our existing clients throughout their projects. She is the main point of contact with our strategic partners in various sectors, enabling us to leverage off their experience and knowledge in international and alternative energy markets.

Rachel is the main contact for companies looking to discuss strategic partnerships, opportunities and bespoke, unusual or multi-disciplinary projects.

Email Rachel

Nilanga Jayawarna

Operations Director

Nilanga Jayawarna

Nilanga is an electrical engineer with over 11 years of experience in both power systems and power electronics studies. She has a PhD in electrical engineering and a strong background in MicroGrids and distribution generation networks.

She has extensive experience in modelling of power systems and control systems, a good knowledge of power system earthing and protection, electrical machines and HVDC applications and control. She is a strong team player with proven leadership skills.

Email Nilanga

James Mackay

Head of Technical Services

James Mackay

James manages the technical services team within the planning and environmental group, which provides a range of services including noise assessment, GIS / CAD mapping, shadow flicker assessments and wind farm layout design.

Since joining TNEI in 2006, James has developed a detailed knowledge of wind farm noise assessments and has worked on a huge number of projects from initial site finding and feasibility assessment through to post construction compliance monitoring and complaints investigation. In 2013/2014 James was involved in the drafting of Good Practice Guidance for wind farm noise assessment for the Institute of Acoustics (IOA GPG). The 10 strong technical services team has provided expert witness services in relation to wind farm noise at over 30 Public Inquiries and wider technical support for projects in the renewable energy, oil and gas, residential and industrial sectors.

James is the main contact for noise assessments, expert witness services, GIS / CAD mapping, wind farm layout design and shadow flicker assessments.

Email James

Ged Barrett

Business Development Manager

Ged Barratt

Ged is an experienced Engineer, Business Manager and Consultant both internationally and in the UK with experience in the energy sector covering Operations and Project & Account Management.

Ged’s experience in renewable energy and power distribution is complemented by his management skills developed in the aerospace industry, both in the UK and the Middle East. Ged’s key strengths are his broad range of experience in the energy sector and his natural ability to understand and deliver clients ambitions.

Email Ged

Jason McGray

Principal Consultant, Planning and Consenting

Jason McGray heads up TNEI's planning and consenting team. He is a Chartered Environmentalist,  full member of the Institute of Environmental Management and Assessment and a Registered EIA Practitioner. Jason has extensive experience of coordinating, preparing and reviewing Environmental Impact Assessments and in gaining planning consent for a range of energy related projects. In addition, Jason has undertaken environmental due diligence and provided specialist input into strategic and regulatory projects working alongside TNEI's technical and engineering experts. He has supported complex projects for both private and public sector clients including Ofgem and the Crown Estate. 

Jason's wider experience includes detailed feasibility assessment, environmental permitting, socio-economic impact assessment, delivery of programmes of community engagement and financial modelling. 

Email Jason

Hazel Peat

Marketing and Communications Manager

Hazel has 10 years’ experience in engineering marketing and communications, gained in the energy industry. She is a driven and creative marketer with enthusiasm and dedication for every project she is involved in. She has a keen eye for detail and delivers targeted and integrated marketing campaigns, communicating complex messages with clarity. 

Hazel is the main contact for media, memberships and events enquiries.

Email Hazel


Charlotte Higgins

Middle East and Asia Lead

Charlotte has an extensive background in the energy sector with over 15 years of experience in the field of systems analysis, particularly in power systems applications. A particular strength of Charlotte's is her ability to provide specialist knowledge to cross function projects where a wide range of stakeholders need to be consulted and their requirements balanced to find the best technical and commercial solution. She has expertise in technology, economic and regulatory considerations for the future development of transmission and distribution networks including integration of renewable generation, smart grids, HVDC systems and low carbon technology.

Email Charlotte

Anna Ferguson

Strategy Director

Anna is our Strategy Director. She has a wealth of experience in electricity regulation, project management, power systems studies and major project experience in the electricity networks sector. Based in our Manchester office, Anna is our Sector Lead for networks and new energy, and is helping us to focus on business development and sales and marketing across the business. Anna has a background in strategy consulting gained in her earlier career and experience in management and leadership, most recently as Head of Power Networks with Atkins.

Anna has a strong academic background which includes an MEng in Electrical and Information Sciences from Cambridge University and a PhD in Electrical and Electronic Engineering. She has been a member of the teaching staff at Bath University for the MSc in Electrical Power Systems for the past 5 years and has recently been appointed a Non-Executive Director for an Academies Trust.

Email Anna