Key Contacts

Dr Gary Preston is a Power Systems Engineer with extensive experience in power system modelling and analysis. Gary specialises in the area of electromagnetic transients and has carried out numerous fault, switching, and lightning studies using EMTP-ATP and PSCAD software to investigate fast and very fast transient phenomena. Gary has managed a wide range of technical projects, ranging from detailed power systems studies to innovation projects. He produces excellent reports and ensures that deliverables are produced on time, within budget, and to the highest standards in terms of quality.

Steve leads the Offshore Renewables work at TNEI and has exceptional experience in large projects and offshore wind.

He a Chartered Electrical Engineer with over 25 years experience in the design, installation and commissioning of projects within the power industry and has a broad range of experience in power systems studies, grid code compliance, technical strategy and project management for the power sector, including offshore transmission and offshore wind. 

Luke has 13 years’ experience working with a diverse range of large and/or critical electrical power systems including petrochemical plants, power stations, pharmaceutical plants, banks and data centres.

His professional experience includes power systems analysis, power quality measurements and analysis, protection coordination and forensic analysis of failed plant. His varied professional experience has required excellent written and verbal communication skills in addition to a broad technical knowledge.

Xuecheng is is a power system specialist with over 30 years experience in power systems computation and analysis including bulk power systems modelling and simulations, power system steady state and dynamic analysis, power system security and stability assessment, network planning and strategy development, planning and security of supply standards and grid code compliance.

He has published several papers for IEEE transactions and conference, and has been involved as a regular reviewer in reviewing papers for IET Generation, Transmission and Distribution Journal. 

Muhammad is a power system engineer with over nine years of experience. He has been involved with power system studies including load flow, fault level, P28 power quality (transformer inrush, flicker, voltage step change), harmonics, fault-ride through, dynamic reactive power and voltage control, load rejection and frequency control studies for a number of onshore and offshore wind farms.

His varied professional experience includes performing electrical studies on industrial and renewable projects, and calculating network use charges for distribution companies.

Gordon leads the delivery of projects relating to electricity strategy and regulation. He has a good technical overview of the network planning and system operation challenges facing the energy industry, particularly in GB and Ireland, and regularly advises generation clients on strategies for getting connected to the grid.

He has a strong technical background in power systems analysis and power systems modelling and a good understanding of wholesale energy markets, ancillary service markets and network regulation, with a particular focus on use of system charging.

Etienne is a Principal Consultant employed by TNEI Africa since 2017 and is based in the Cape Town office in South Africa.

Etienne has a BEng (electrical and Electronic) degree from the University of Stellenbosch and has 10 years working experience in the power generation industry.

Etienne previously worked for the South African utility, Eskom for 5 years and AECOM one of the largest multi-disciplinary engineering firms for 3 years. 

Zoë has a utilities background in generation and distribution, totalling 12 years. Zoë is able to draw on plant operations and asset management experience, as well as network planning, power systems analysis and generation integration.

With a passion for renewable energy and a post graduate qualification in sustainable energy systems, Zoë has been closely involved in South Africa’s Renewable Energy Independent Power Producer Procurement Programme and has experience in strategic and optimal grid integration of renewable generation at all voltage levels. 

Rashid is an electrical engineer with over 16 years professional experience in working in the field of power systems both in the UK and Internationally.

He has been involved with power system studies including load flow, fault level analysis, harmonic studies, P28 and reactive power capability studies for a number of wind farms and solar parks. He also has experience of carrying out fault-ride through and dynamic reactive power and voltage control studies for a number of onshore and offshore wind farms using DigSilent and PSSe.

Gemma is an IEMA Associate and has worked in the sector since 2014. She has supported the production and delivery of Environmental Statements, Environmental Reports and Environmental Appraisal documentation for onshore commercial projects, and offshore renewable energy projects.

Her experience in both areas has enabled Gemma to develop a broad understanding of onshore and offshore consenting regimes. 

David has 10 years experience within the energy sector from having worked for an energy organisation both in Southern Africa and in the United Kingdom.

His unique experiences in engineering design, installation and commissioning of projects, have afforded him the opportunity to enable practicable, technical and innovative solutions within the electrical distribution and power engineering discipline. 

Matthew provides GIS support across the business including site finding analysis, feasibility assessments and constraints mapping. Matthew has undertaken a number of energy infrastructure studies utilising GIS in order to assess the technical, planning and environmental feasibility of capacity and siting options for a range of technologies.

He also undertakes site finding & feasibility assessments for potential energy developments and infrastructure including detailed constraints mapping. This includes facilitating the mapping and graphics requirements for reporting, project decision making and optimisation of site design.

Mark’s work focuses mainly on the technical aspects of renewable energy developments including site finding, GIS mapping services, and various types of noise assessments.

Mark has provided GIS and CAD support for numerous projects at TNEI, including renewable energy, power systems, and residential and industrial developments.

Experience includes data management and analysis, site finding and feasibility assessments, site design, production of technical plans and figures, and general mapping services for the duration of a project. 
 

Mark has a proven track record of Network Modelling and since joining TNEI has become proficient at using DIgSILENT PowerFactory.

In addition to Mark’s power system modelling experience he has also been involved in a wide variety of innovation projects.

His most recent projects have allowed him to research area’s such as Blackstart via distributed energy resources (DER); the impact of high penetration renewable energy integration onto the electricity network and the use of non-synchronous renewable generation for ancillary services.

Gorby has over four years of experience working closely with Distribution Network Operators (DNOs) across the UK on many innovation & Business-As-Usual (BAU) projects.

He has a diversified skillset which in-cludes experience and expertise in project management, power systems studies and analysis and scripting in multiple coding languages.

Anrich is an electrical engineer specialising in the field of power systems. He holds a Bachelor’s (BEng) degree in Electrical & Electronic Engineering and a Master’s (MEng) degree (Cum Laude) in Electrical Engineering. He is registered as a PrEng Candidate with ECSA and is also a SAIEE member.

His knowledge areas span the fields of power generation, transmission and distribution, with a specialised focus in the renewable energy domain. Anrich pursued his Master’s degree in alignment with his passion for renewables and the grid integration thereof. His work has led to the publication of multiple conference papers. He has previous working experience as a consultant and has served multiple South African municipal power utilities as clients. He is proud to be joined with the team of power systems experts at TNEI in providing specialist energy consulting services to the international renewable and conventional energy sectors.

Alex is involved in grid connections projects, regularly advising developers on grid connection strategies, and project construction timescales and costs for both distribution and transmission connections. 

She has worked on a number of capacity searches across DNO areas, covering different technologies and connection capacities. She often liaises with DNOs and NGET to help progress projects and has helped clients with connection applications.

Her focus has primarily been on onshore wind but she has worked on solar, battery storage, marine energy and EV projects.

Kevin has been involved in network planning projects through secondment with Scottish Power Distribution as well as a number of business plan assurance work with a transmission operator.

His key experience includes fault level and load flow analysis of connecting generators, fault level studies of distribution networks, distribution network modelling using DigSilent and business plan assurance. 

Obinna is involved in various power system studies including load flow, short circuit, P28 power quality (transformer inrush, voltage step change, flicker) reactive capability, network capability assessment, wind farm constraint analysis and calculating network use charges for distribution companies.

He also has expertise in scripting in multiple languages for automation of power system studies, and therefore is involved in developing and adapting software tools for more complex power system studies. Obinna holds a PhD in Power Systems Engineering.