Meet The Team

Rob Pannell

Managing Director

Rob Pannell is the Managing Director of the Zero Carbon Hub, a role to which he brings a wide range of knowledge regarding sustainability, innovations, technology prototypes, trials and solutions. This knowledge is a crucial asset for both the Hub and government, with Rob working closely with ministers and senior civil servants to advise on zero carbon policy and the 2016 target.

Prior to joining the Zero Carbon Hub, Rob was a senior figure in the construction industry with over 35 years of experience with Taylor Wimpey UK Ltd. where he held a series of senior level roles, most recently as UK Director of Production (construction and design). Within this position Rob investigated and established a cost base and technical compliance of practical renewable energy and building fabric solutions to meet the various UK government policies.

Tessa Hurstwyn

Technical Director

Tessa is the Technical Director of the Zero Carbon Hub, having joined the organisation full time in July 2013.

Tessa previously held the role of Technical Manager within the Hub, on secondment from Fulcrum Consulting, and latterly Mott MacDonald. She has therefore been heavily involved in Hub work since January 2009. As Technical Manager she played a critical role in all the zero carbon homes definition development work carried out by the Zero Carbon Hub between 2009 and 2013.


Tassos Kougionis

Tassos Kougionis

Technical Manager

Tassos Kougionis joined the Zero Carbon Hub in the winter of 2011 and is currently the organisation's Technical Manager. His background in Civil Engineering (MEng (hons), MSc) enables Tassos to bring to this role an advanced understanding of building physics, while allowing him to explore his passion for structural/environmental engineering and energy and sustainability in building design. 

At the Zero Carbon Hub Tassos has led and leads various technical schemes, policy research projects and is currently in-charge of one of ZCHs biggest projects – the Rowner research, which is part of the TSB BPE programme. 

Tassos' work keeps him up-to-date with the latest policy developments on the zero carbon journey, knowledge he uses to advise a number of major housing developments which are seeking to comply with changes to Part L and the proposed zero carbon definition. Further afield than England, Tassos is the Hub's main point of contact with European policy and follows closely the progress of the Energy Performance of Buildings Directive, and the "nearly Zero Energy Buildings" definition.

Nicola O'Connor

Nicola O'Connor

Project Manager

Nicola O'Connor joined the Hub in October 2013, after a period of ten years working in central government as a policy advisor at BIS, the Government Office for Science and DECC.

As a policy advisor Nicola headed up the Green Deal measures team in DECC, and also led other projects designed to bridge the gap between energy efficiency research and policy development. Nicola also worked on the some of the technical aspects of the Energy Companies Obligation, and on land use and sustainability policy and research more generally.

Nicola's role in the Hub is to provide strategic and project management support on projects covering overheating, ventilation, the zero carbon definition and the costs associated with building to the zero carbon standard. 

Alice Davidson

Alice Davidson

Marketing Manager / PA to Managing Director

Alice joined the Zero Carbon Hub in May 2013 after completing her Part 1 degree in Architecture from Northumbria University. Alice initially worked with NHBC, and then moved to Zero Carbon Hub to assist the team with various on going projects, provide PA support to the Managing Director and mange the invoicing, purchasing and accounts.

Alice's role now encompasses marketing and communications responsibilities, including the creation and design of promotional material and managing the conference and event organisation.

Ben Griggs

Ben Griggs

Communications Manager

Ben joined the Zero Carbon Hub as a Communication Intern in October 2013 after completing his degree in Political Science from Essex University. He was hired as a consultant to the Hub in March 2014, before becoming Communications Manager in August 2014. Ben's responsibilities include supporting Hub communications,reports, and documents, event and conference organisation and, maintenance of the Hub's social media platforms.


Mat Colmer

Associate Director

Mat is a specialist in building performance assessment research and has spent the last 10 years leading large-scale projects that investigate the performance of buildings and their systems.

Working on a freelance basis, Mat is Associate Director for the Zero Carbon Hub and is responsible for the delivery of high profile technical projects for Government, sector based and private organisations. Projects include innovation in supply chain and building whole life performance, developing training materials for SMEs in the construction sector and working with large volume, private house builders on commercial sustainable design approaches.

Prior to joining the Hub, Mat was a Lead Technologist with Innovate UK, responsible for the delivery of the Building Performance Evaluation programme. From 2004 to 2011 Mat worked with the Energy Saving Trust, with his final role being Head of Technology, leading on the their housing and technology field trial activities.


Technical Advisor

Selina Cheng

Technical Advisor

Selina joined the Zero Carbon Hub in the summer of 2015 after completing her Master's degree in Energy and Sustainability from the University of Southampton. She has been involved with different projects and developing profiles on energy efficient low carbon homes. Her main focus has been analysing data to better understand and identify the risk of overheating in buildings. She’s also providing support to the Hub's events and conferences.