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Adrian Punt


Adrian has over 25 years’ experience in consultancy and research providing specialist environmental support to UK and international nuclear, chemical and other industry clients and associated environmental and nuclear regulators. He is a Chartered Environmentalist (CEnv), Fellow of the Institution of Environmental Sciences (FIEnvSc), a Chartered Radiation Protection Professional (CRadP) and a Member of the Society for Radiological Protection (MSRP). He works extensively with the NDA and international organisations such as the IAEA in areas of radiological impact assessment, radioactive waste and land quality management. He has been the Technical Secretary to the Nuclear Industry Group for Land Quality (NIGLQ) since 2015.

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Alex Proverbio

Interim End State Delivery Team, Dounreay

Alex Proverbio joined Dounreay as an Environmental Specialist in 2019. The Dounreay site is the only fast reactor site in the NDA group, with more than 60 years of operation and decommissioning. With several of years of experience working in waste, environment, modelling and safety case disciplines for the LLW Repository and subsequently in Dounreay, Alex provided technical support to the review of the Site End State throughout its development.

Alex’s current focus is  on the ongoing development of the GRR implementation at Dounreay, leading on the development of the waste management plan and the site-wide environmental safety case. Alex has been involved in a number of national and international communities of practice, and he has recently taken up the role of co-chair of the NDA NWDRF Land Quality working group.

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Andrew Craze

Nuclear Regulation Group Manager, Environment Agency

Andrew joined the Environment Agency (EA) in January 2022 to lead one of 2 Nuclear Regulations teams.  The Nuclear Regulation Group North is a team of 45 nuclear regulators and assessors responsible for the regulation of nuclear sites in the north of England, the assessment of radioactive waste management proposals and new reactor designs and the delivery of the EA’s radiological monitoring programme.  Andrew has more than twenty years’ experience as a sustainability, safety and security leader within the nuclear industry having previously worked for Radioactive Waste Management, the Department of Energy and Climate Change, the Nuclear Decommissioning Authority and BNFL.

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Aneesa Ahmad

Westinghouse Electric Company

Aneesa is a Chartered Waste and Resources Manager and Chartered Environmentalist with over eighteen years’ experience in Waste Management and the Environment.

Throughout her career, Aneesa has been based mainly in the UK and Australia during her career, but worked on projects across countries including Nigeria, Libya, Russia, Papua New Guinea, Iran, Morocco, UAE and Saudi Arabia.

Aneesa is currently responsible for the commercial contract and delivery of projects through the Nuclear Waste Services Framework on Metallic Waste Treatment services. She also provides technical advice for the projects proposed for the Materials Management Hub at Springfields Site in Preston.

Working as consultant for 14 years, Aneesa has knowledge and experience on treatment options and management of all waste types, including construction and demolition waste, municipal solid waste, bio-solids/sludge, organics and healthcare wastes. She has developed operational waste strategies, construction site waste management plans for a number of clients, appraised energy from waste technologies, and provided technical advice to financial lenders and local authorities.

Aneesa has been responsible for environmental compliance for Europe’s largest ground investigation project and am managing Environmental Compliance, Land Quality and Waste Management activities for the Moorside nuclear new build project.

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Arun Khuttan

Sustainability Advisor, NDA

Arun is a sustainability advisor at the NDA. As a chartered chemical and nuclear engineer, and as a fellow of the RSA, Arun uses his skills to develop frameworks, policies and strategies that can be cascaded throughout the NDA and its group of operating companies.

Arun founded the #NetZeroNeedsNuclear campaign and co-led the UK YGN and global Nuclear for Climate movement to have a notable presence at COP26. This year Arun is the Marketing and Communications Officer for the YGN. He is passionate about creating a climate that saves our climate and enhances people’s lives.

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Charlotte Parrington

Research Manager (IWM SDR), NDA

Charlotte joined the NDA as a Research manager in September 2021. Within her role she works closely with IWM and SDR technical and strategy leads, to turn research needs and opportunities into projects and outcomes. Prior to joining the NDA, Charlotte completed her doctorate in Chemical Engineering where her research focused on improving the efficiency of advanced reprocessing liquid-liquid separation equipment. She then trained as Nuclear Regulator with the Environment Agency, where she gained a broad understanding of the decommissioning and environmental challenges faced by the industry.

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Chris Heffer

Director, Nuclear Power and Decommissioning

Chris Heffer became Director, Nuclear Power and Decommissioning at the Department for Business, Energy & Industrial Strategy (BEIS) on 31st August 2021.
Chris was previously the Deputy Trade Commissioner for North-East Asia based in the British Embassy in Tokyo for six years where he was responsible for Trade and Investment across all sectors, including Nuclear. Before that he worked in Strategy and Customer Insight roles in the Department for Business, Innovation and Skills, and Department of Health. He also led Drugs and Alcohol Policy within the Public Health Directorate of the Health Department.

Prior to joining the Civil Service, Chris was a Senior Manager at Deloitte, working in variety of sectors, including Life Sciences, Manufacturing and Consumer Business in Japan, Germany, France and the US. He studied Engineering, Economics and Management at University, and was a Sponsored Engineer during that time at Ford Motor Company UK.

The Director’s responsibilities include the following areas:
• Nuclear power policy and legislation
• Nuclear decommissioning and sponsorship of the NDA
• International Strategy and engagement

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Christine Bruce

Christine has worked for Ministry of Defence at Rosyth supporting the UK Naval Nuclear Propulsion Programme for the past three decades. During that time, the site has moved through refitting operational submarines into partial site decommissioning, and finally  – for the past ten years – planning and initiating the engineering challenge of complete dismantlement of the seven out-of-service nuclear submarines stored afloat there. Her specialisms are facilities decommissioning and radioactive waste management; as part of her role, for the past fourteen years she has led a Project aiming to dispose of a challenging subset of MOD’s legacy waste Ion-exchange resins in long-term storage at Rosyth and Devonport.

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Claire Gallery-Strong

Director for Strategy and  Integrated Waste Management, Nuclear Waste Services

Claire Gallery-Strong has developed her career working across a variety of sectors including pharma, environmental and nuclear. Recently appointed as Director for Strategy and  Integrated Waste Management, Nuclear Waste Services. Graduating from NUI Galway, Ireland, she moved to the UK to develop in the field of chemistry. Following an interest in analytical sciences, she studied an MSc at Kings College London and more recently an MBA at Henley Business School. Her nuclear experience spans roles from nuclear operations, project, programme and portfolio management through to developing radioactive waste strategies. Her projects include the return to service of THORP (reprocessing fuels)  following a significant pipework failure and radioactive leak, She has developed her leadership capabilities directing engineering and science programmes. In her volunteering capacity she regenerated the Young Generation Network in 2000 and built a sustainability plan to enable a thriving network.  She has recently been recognised for her contribution to the field of science and engineering through an appointment as Hon Treasurer, a Trustee for the Royal Society of Chemistry.

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Claire Wallace

RadWaste Group Head, EDF

Claire Wallace is RadWaste group head within Nuclear Decommissioning Engineering at EDF. Claire started her career in 1998, in the safety case team at Calder Hall power station, before moving to British Energy as part of the fault studies team. Claire has been part of the radwaste and  decommissioning teams at British Energy and later EDF since 2005, taking on a management role in 2009. As the AGR fleet at EDF approaches the decommissioning chapter of the lifecycle Claire is looking forward to helping make the decommissioning plans a reality. Claire is a Chartered Physicists and  is married with three awesome children, aged 11, 8 and 6, which helps explain her lack of interesting hobbies.

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Clive Nixon

Group Chief Nuclear Strategy Officer, NDA

Clive joined the Nuclear Decommissioning Authority (NDA) in April 2005, after 15 years with British Nuclear Fuels, where he undertook a number of roles across research and development, technical and commercial areas. Through this he covered the full range of activities and facilities at Sellafield, including reprocessing, waste management and decommissioning, He also spent time in the US and overseas.

Roles undertaken within NDA, culminating in the role of Group Chief Nuclear Strategy Officer, have allowed Clive to gain a comprehensive understanding of the NDA’s estate, the strategy and policy landscape, and provide leadership on strategy development and implementation for the group, and with BEIS, through strong collaborative relationships.

Clive has a BSC and MSC in Engineering and Applied Mathematics, is a graduate of the Cabinet Office Project Leadership Programme and is currently part of the first NDA Leadership Academy cohort.

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Colin Mair

Horizon Scanning Manager, Technology & Innovation, NDA

Colin Mair leads the identification of emerging technologies at the NDA, exploring opportunities to improve delivery of the nuclear decommissioning mission through technology research and experimentation, using Futures methods such as Horizon Scanning.

An experienced corporate innovator, facilitator and ex-entrepreneur, Colin is passionate about creative problem solving and addressing real challenges. One of his enduring interests is in exploring methods to break fixed thinking: unlocking the creativity of technical experts for transformational innovation.

He has led award-winning innovation teams at Heathrow Airport, trialling new technologies to improve the passenger experience and operational effectiveness, as well as developing the technology strategy for Heathrow Expansion. Prior to that, he has an R&D background in the mobile industry, working at BlackBerry, Vodafone and Orange in product management and technical roles. His expertise is especially focussed on creating human-centric experiences and products, combined with a sound understanding of technology platforms and business innovation.

Corhyn Parr

Corhyn Parr

Chief Executive Officer, Nuclear Waste Services

Corhyn Parr is CEO of Nuclear Waste Services, the Nuclear Decommissioning Authority’s waste management organisation. She was previously Director of Integrated Waste at the Nuclear Decommissioning Authority (NDA), a role which includes bringing together RWM and LLWR into a single waste organisation and creating a national programme for integration waste management to improve how waste is retrieved, treated, transported, stored, and disposed of.

She has worked within the nuclear industry for over 20 years since graduating as a mechanical engineer, supporting nuclear operations, generation, decommissioning and waste management across most nuclear licensed sites in the UK. She has also worked on nuclear projects internationally in Europe, Canada and USA.

She is the current Chair of the Nuclear Skills Strategy Group (NSSG) which is an important national alliance for skills and provides a space for Government and industry to join forces on the right skills strategy and plan for nuclear. A core passion of hers is to drive for a fully diverse and inclusive nuclear sector and as Exec sponsor for D&I at NDA is steering efforts across the group to build a new Inclusion strategy to deliver step change.

A perpetual advocate and supporter of the nuclear industry, Corhyn has previously chaired the Young Generation Network, been a Board Member of the Nuclear Institute, served as Chair of the Nuclear Power Committee of the IMechE and the NIA Decommissioning and Existing Nuclear Working Group. She is currently a Non-Executive Director at Cogent Skills, Low Level Waste Repository Ltd and Radioactive Waste Management Ltd.

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Craig Ashton

Waste Services Director, LLWR

Craig has more than 20 years’ experience working across operational, strategic and programme roles at Sellafield Ltd., LLWR Ltd. and the Nuclear Decommissioning Authority (NDA). He holds a Doctorate in Sustainability and proportionate decision-making, is a Chartered Environmentalist and Fellow of the Institute of Environmental Management and Assessment.

He was instrumental in establishing the waste diversion services at LLWR before taking overall leadership of the Waste Services department in 2016.  This was followed by a secondment to the NDA where he led the implementation of the new Magnox reactor decommissioning strategy and assurance of both the Magnox and Dounreay lifetime plans prior to PBO contract cessation.

He has recently returned to his role leading Waste Services, which now forms one of three key lines of business under the newly formed Nuclear Waste Services organisation.

Daniel Brown

Head of Data and Digital, OEUK

Daniel is Head of Data and Digital at OEUK, the representative body for the UK offshore energy industries. He is also managing director of OEUK’s LOGIC subsidiary – which has been delivering collaborative logistics, supply chain, and legal services to industry on a not-for-profit basis for more than two decades – and is the Chair of the Society for Professional Data Managers (SPDM). He has been working in data and information since 1998, and in oil and gas since 2004.

Daniel Delort

Head of International Relations Department, ANDRA

Daniel DELORT obtained his master degree in Geology and Geophysics in 1988 at Paris University.

Daniel joined Andra in 2004 to complete the design studies of the French Deep Geological Repository (DGR) for HLW and SNF in Granite and prepare, as the main writer, the “General Architecture Report (TAG) for the 2005 national milestone. From 2006 to 2010, Daniel was the lead engineer in charge of designing HLW disposal cells in clay formation and waste package transfer systems in the repository. In 2010 he was promoted to Performance Manager of Cigéo to develop and implement the “initial technical specification” of the DGR. In 2012, he joined the international division of Andra as project manager (South Korea, Belgium, and Ukraine).

Since November 2019 he is the head of the international affairs of Andra.

Dave Clark

Asset Management and Continuous Improvement Manager, NDA

Dave is the Asset Management and Continuous Improvement Manager for the NDA embedded in Nuclear Waste Services providing guidance and support to the developing organisation. Dave is also the author of the NDA Asset Management Digital Strategy and a contributor to the Enterprise Digital Strategy both of which are changing the way we understand, manage and utilise our data and information across the estate. With a background in Engineering Dave has delivered digital transformation in automotive and utilities over the past 20 years before coming to the NDA 2 years ago to work in the Operational and Performance Improvement department.

Dave Rossiter

Project Director – Waste

Dave Rossiter is Director of Amentum’s waste business delivering Integrated Waste Management and Decommissioning solutions to clients across the UK and International nuclear sectors. With 20 years spent in waste and environmental management he has previously held increasingly senior executive team roles within the UK’s LLW Repository organisation managing the strategy, national waste programme, business functions, organisational change, and prior to joining Amentum was the Waste Services Director responsible for delivery of all customer facing services, in addition to acting as executive sponsor for Equality, Diversity, and Inclusivity (ED&I).  Dave is a passionate advocate of Integrated Waste Management and using Programmatic thinking to solve complex waste challenges.

David Connolly

Head of Programme, Sellafield Ltd

David Connolly is the Head of Higher Activity Waste Thermal Treatment (HAWTT) Programme at Sellafield Ltd, a subsidiary of the Nuclear Decommissioning Authority (NDA), where he is responsible for delivering a triple pilot programme leading to benefits of circa £5B to the UK.

Previously David has held Sellafield the roles of Head of Beta/Gamma Remediation (Operating Unit) and Head of Site Post Operational Clean Out (POCO). His responsibilities focussed on creating the optimum environment to deliver maximum value to UK PLC in the remediation of the Sellafield site. His accountabilities included transitioning end of operating life facilities, decommissioning & demolition of conventional and beta/gamma facilities, transport/processing/storage/disposal of waste (exempt, VLLW, LLW, ILW), and care & maintenance of redundant facilities.

David has over 20 years’ experience leading studies, projects and programmes in 14 countries for the aerospace, renewables, oil & gas and nuclear industries. He has a Masters in Engineering from Kingston University and an MBA from Liverpool University.

He has particular skills in strategic leadership, collaborative partnerships, innovation and transformative change.

David is a Fellow of the Institute of Leadership & Management, a Chartered Mechanical Engineer, and a Registered Project Professional. He currently sits on the OECD Nuclear Energy Agency’s CPD Management Board, and has previously served as Chairman of the APM Aberdeen Chapter and sat on the ECITB Offshore Project Management Steering Group where he was involved in the development of the Project Collaboration Toolkit.

David Peattie

Chief Executive Officer, Nuclear Decommissioning Authority

David Peattie was appointed as the Chief Executive Officer for the Nuclear Decommissioning Authority in 2017, following a 33 year career in a number of technical, commercial and senior management positions in the oil and gas industry, including a final role as Head of BP Russia.

David has significant global experience of leadership in the energy, oil and gas industries, and a strong track record in tackling complex commercial and engineering challenges in the UK and internationally. Prior to taking up his role at the NDA, David was Chief Executive Officer at Fairfield Energy, where he led the successful turnaround of performance of North Sea assets and oversaw the start of the decommissioning project for the Dunlin Alpha Platform. He has also served as Chairman of Pacific Nuclear Transport Ltd since 2017.

David was appointed Patron of Women in Nuclear UK in 2020 and supports their work in improving gender balance in the nuclear industry. He also personally established and funds undergraduate bursaries for Engineering students at Dundee University.

David is a Chartered Engineer and Member of the Institute of Materials, Minerals & Mining (IOM3), and lives in Cumbria.

Davide Stronati

Director of Sustainability, NDA

Davide is the Director of Sustainability at the Nuclear Decommissioning Authority in the United Kingdom. He had been the Global Head of Sustainability and Climate Change of Mott MacDonald from November 2012 to November 2020. He is the Chair of the Committee on Engineering and the Environment at the World Federation of Engineering Organisations (Paris, France), Chair of the Sustainability Leadership Team at the Institution of Civil Engineers (London, United Kingdom), Member of the Board and Advisory Group of the UN Global Compact network UK (London, UK), Member of the MSc Management Business Advisory Board at Imperial College Business School (London, UK).

He holds a Degree in Environmental Engineering, summa cum laude from the University of Trieste (Italy); an MPhil in Engineering for Sustainable Development from the Cambridge – MIT Institute (UK-US); he attended the High Potentials Leadership Programme at Harvard Business School in Boston (US)

Ellanor Joyce

End State Manager, Magnox Winfrith site

Ellanor Joyce is the End State Manager for the Magnox Winfrith site.  The Winfrith site will be the first NDA site to achieve its next planned land use and will include on-site disposal of radioactive waste and recovery of non-radioactive wastes to deliver the optimised decommissioning strategy.  With over 15 years experience working in waste, environment and safety case disciplines for a wide variety of nuclear operations, Ellanor utilises her combined experience in developing the site wide environmental safety case and supporting designs to enable sustainable waste management in the final stages of decommissioning.

As a Chartered Environmentalist, Ellanor has a particular focus on defining sustainable decommissioning strategies for nuclear liabilities, integration of non-radiological requirements into the permissioning development process including biodiversity gain through decommissioning and assessing the impact of climate change.

Felipe Basaglia

Chair of the Nuclear Decommissioning Authority Enterprise Model Working Group

Felipe is Chair of the Nuclear Decommissioning Authority Enterprise Model Working Group, consisting of all UK decommissioning Site Licence Companies sharing, reviewing and leveraging data in order to wholistically support estate wide decision making. In addition to this, he is Chair of the Institution of Chemical Engineers Nuclear Technology Special Interest Group, as well as being Modelling and Simulation Centre of Expertise Lead at Sellafield Ltd.

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Francis Livens

Director of the Dalton Nuclear Institute, University of Manchester

Francis is Professor of Radiochemistry and Director of the Dalton Nuclear Institute at The University of Manchester. He has carried out research across the nuclear fuel cycle, with a particular current interest in managing nuclear materials. He is also interested in the linkages between Science & Engineering and Humanities, addressing the societal, cultural and organisational aspects of implementing nuclear technologies in modern societies.
In addition to his University role, Francis is a Non-Executive Director of the NDA, Chair of the Nuclear Innovation & Research Advisory Board advising Government on aspects of new nuclear, and a member of the ONR Independent Advisory Panel. He was previously a member of the Committee on radioactive Waste Management from 2007 to 2016, and has also performed numerous other advisory roles in the UK and internationally.

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Graham Cantillon

Programme Director, Nuclear Waste Services

Graham is a Programme Director within Nuclear waste services leading on the transformation programme. He is the sponsor of the Enterprise Model project within the Integrated waste management programme, which is seeking to deliver on the aspirations of the NDA radioactive waste management strategy by connecting key decision making across the NDA estate, and ensuring that we deliver on the promises made within the IWMP blueprint.

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Helen Cassidy

Head of Business Improvement, Nuclear Waste Services

Helen Cassidy is the Head of Business Improvement for Nuclear Waste Services, the NDA Groups waste management organisation. Helen began her career on the graduate trainee scheme at Sellafield in 2004 and worked at the site, in a range of waste management and characterisation technical and project management roles, until 2012 when she joined LLW Repository Ltd. Helen worked in the National Waste Programme until 2021, becoming Head of National Waste Programme in January 2019, supporting and leading work to improve LLW management practice across the UK. In her role as Head of Business Improvement in Nuclear Waste Services, she leads a team focussed on improving the efficiency and efficacy of delivery across the business.

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Hilary Royston-Bishop

Senior Technical Manager, Sellafield Ltd

Hilary Royston-Bishop is a Senior Technical Manager specialising in Higher Activity Waste Disposability with a particular focus on the Miscellaneous Beta Gamma Waste Store at Sellafield Ltd. Since 2020, Hilary is the technical lead for the NDA and Innovate UK’s competition for Sorting and Segregating Nuclear Waste.

Following her graduation from the University of Birmingham with a Masters degree in the Physics and Technology of Nuclear Reactors, she has gained 15 years of experience in the nuclear industry and has worked at Magnox Ltd and the Low Level Waste Repository as a physicist, waste advisor and characterisation lead.

Hilary is a Chartered Physicist and Chartered Waste Manager and she has recently taken on the training lead role with Women In Nuclear Cumbria branch.

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Holly Cresswell

National Programme Implementation Manager , Nuclear Waste Services

Holly is a National Programme Implementation Manager in the Integrated Waste Management Programme. She has worked in the nuclear industry since 2014, after graduating with a Master’s in Environmental Resources Assessment. Having completed secondments in consultancy and at Sellafield Ltd as part of the nucleargraduates scheme, she joined the National Waste Programme office in 2016. Holly worked on a diverse range of projects supporting implementation of the UK Low Level Waste Strategy and led the Programme office’s contribution to the Problematic Waste Integrated Project Team.

This was followed in 2020 by a secondment to the customer team within LLWR’s Waste Management Services, where she supported waste producing organisations in accessing waste treatment and disposal services via the Waste Services frameworks. Since returning the National Waste Programme, now part of the Integrated Waste Management Programme, Holly has led the IWMP project on Conventional (non-radioactive) Waste and has worked on development of updated waste cost norms. She is now leading the IWMP’s Characterisation Programme whilst continuing her involvement in the Conventional Waste project and sits on the Problematic Waste IPT Board and the Nuclear Waste Services Equality, Diversity and Inclusion Delivery Group.

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James McKinney

Chief Strategist for Integrated Waste Management, NDA

James McKinney has over 25 years of experience in the nuclear industry and is the Nuclear Decommissioning Authority’s (NDA), Chief Strategist for Integrated Waste Management.  NDA is the body responsible for the clean-up and decommissioning of the UK’s nuclear legacy sites.  James’ key areas of interest are; holistic approaches to waste management, radioactive waste storage and disposal, treatment & packaging, graphite management and decommissioning wastes.  On radioactive waste management issues, James represents the UK at an international level including IAEA and NEA conferences and meetings.

After completing his PhD in 1996, James joined BNFL’s Company Research Laboratory, which was based at the Springfields Site and was involved in waste treatment projects largely for Sellafield and Springfields.  He then undertook a number of technical management roles at Springfields, Risley and Sellafield that covered all aspects of the waste management lifecycle.  James joined the NDA in September 2005, as the ILW Strategy Manager and is a Fellow of the Royal Society of Chemistry.

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Jay Dunsford


Jay is a Chartered Chemist and Technical Manager based in the Effluents, HALES and Environmental Chemistry Team within the National Nuclear Laboratory (NNL). Jay is currently on secondment within the Retrievals Value Stream of Sellafield Limited (SL) and is managing the Retrievals Strategy and Technical Effluent Chemistry Team.

Jay joined the NNL in 2017 and his experience within the nuclear sector spans a range of effluent abatement technologies (chemical precipitation, ultrafiltration, sand bed filtration and ion exchange) at the laboratory and rig scales as well implementation of R&D at the plant scale. Jay also has interests in solvent management and treatment activities through the Advanced Fuel Cycle Programme (AFCP). Prior to joining the NNL, Jay spent a number of years within academia working in a range of fields including organometallic, organic and main group chemistry and homogeneous catalysis.

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Juliet Long

Chief Strategist: Site Decommissioning & Remediation, NDA

Juliet recently joined the NDA as Chief Strategist for Site Decommissioning and Remediation having previously worked within the Environment Agency, the Atomic Weapons Establishment, the UK Atomic Energy Authority (UKAEA), as well the UK Government Department for Business, Energy and Industrial Strategy (BEIS). She has over 20 years experience in the nuclear industry during which time she has been instrumental in delivering changes in regulatory strategy, developments in UK policy and strategy, and proposed revisions to the legislative framework for final stage nuclear decommissioning and clean-up.  Her work includes delivery of a revised strategy for the EA’s radioactive substances regulation, development of UK nuclear and non-nuclear radioactive waste strategies, recommendations to Government on opportunities to improve UK radioactive waste infrastructure, as well as regulatory guidance on a more sustainable approach to delivering nuclear site end-states (the ‘GRR’) and its implementation through an integrated programme with industry. 

Juliet has represented the UK at various international fora including the IAEA and NEA, and until recently was a Trustee Director of the Nuclear Institute. In recognition of her contribution to the UK nuclear industry and radioactive waste management she was awarded Fellowship of the Institute of Environmental Management and Assessment.

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Lindsay Edmiston

Head of Capability of Waste Management and Decommissioning, NNL

Lindsay is Head of Capability of Waste Management and Decommissioning at the National Nuclear Laboratory. Lindsay has over 30 year of experience in the industry. Lindsay leads a team of researchers developing solutions for waste characterisation, solid and liquid waste treatment, disposal options and environmental management.  In addition, Lindsay has been instrumental in developing and delivering the CINDe PhD programme; developing PhD students in industry.

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Lisa Maxwell

Head of Integrated Waste Management, Sellafield Ltd

Lisa has been at Sellafield for more than 25 years, since joining the organisation in February 1997 following the completion of her PhD in chemical engineering.

Lisa started in research, development and technology, and this has been a feature throughout her career. Lisa spent eight years working as technical manager in the Highly Active Liquor Evaporation and Storage (HALES) facility, where she held an annual research and technology portfolio totalling near £10m.

Following this, Lisa has worked on the plans for the future of the Sellafield site – in specialist and leadership roles managing problematic solids, considering the post operational clean out (POCO) of nuclear facilities and planning for a more integrated and sustainable approach to waste management.

Outside of work, Lisa supports a number of organisations and charities. She is chair of governors at a local primary school, is on her village hall management committee, helps fundraise for the local mountain rescue team and supports the dance school her daughter attended.

Lisa leads Sellafield’s work to deliver an integrated and sustainable approach to waste management. This role is responsible for ensuring waste management is strategic, planned and joined up – not just across the company and its value streams, but with the wider nuclear estate.

Lisa drives this waste approach across the enterprise, working with stakeholders, to ensure the company’s approach to waste management considers the full lifecycle and is in keeping with the waste management hierarchy.

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Madeleine Archer

Chief of Staff to ESS Director, Sellafield Ltd

Madeleine graduated from Aston University with a Master’s Degree in Chemical Engineering & Applied Chemistry. She joined the Sellafield Graduate Scheme as a process design engineer, gaining experience in plant facing design as well as secondments across different areas of the business. On completion of the training scheme Madeleine moved into System Engineering in the Thermal Oxide Reprocessing Plant, managing the reliability and performance of the Uranium Purification area of the facility. She then transferred out of the engineering profession, into operations management where she has spent the majority of her career, managing facilities from non-nuclear infrastructure to legacy high hazard storage ponds.

Two years ago, Madeleine took on the role as the first Sustainability Lead for Sellafield Ltd and has since embedded sustainability into the strategy for the business, developed governance and funding routes for sustainable improvements and set up site wide collaboration for sustainable innovation. Madeleine is also part of Sellafield Ltd Emergency & Crisis response teams, providing voluntary on call support.

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Mark England

Transfer and Deconstruction Director, EDF Energy

Mark England was appointed as the Transfer and Deconstruction Director for EDF Energy on 1 January 2021, following a 32 year career in a number of technical, commercial and senior management positions throughout the nuclear industry. As Transfer and Deconstruction Director Mark is responsible for the strategic oversight and delivery of the transfer and deconstruction programmes driving strategic alignment with NDA/Magnox, securing synergies for the UK tax payer and seamlessly transferring AGR sites into HMG/NDA ownership post fuel free verification.

Prior to taking up his role at EDF, Mark spent 6 years with Bechtel as Business Development Director and latterly the Commercial and Project Controls Director as part of Bechtel’s Delivery Partner team on the London City Airport Development Programme. Previous to this Mark was Senior Vice President for EnergySolutions, where he held a number of key business and project leadership positions  including Magnox Site Director at Dungeness A where he led the safe transition/transformation from a generating station to defueling and decommissioning delivery organisation.

Mark is a Chartered Engineer and Member of the Nuclear Institute, and lives in Kent.

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Mark Weaver

Programme/Project Manager

He is a Chartered Mechanical Engineer and have been working on Projects for 30 years, with 20 of these years in the nuclear industry and prior to this in the automotive, electronics and domestic appliance industries.  His passion is delivery and driving continuous improvement.

The type of projects he manages deal with transportation solutions, this has included ship building, ship decommissioning, setting up transportation routes by road and sea, and transport asset acquisition.

He is a member of the APM (Association of Project Management) and the ACostE (Association of Cost Engineers) of which he is part of the Northwest organising committee.

He also co-chair of the NDA (Nuclear Decommissioning Authority) Enable network supporting those with disabilities or carer responsibilities.

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Martin Chown

Chief Executive Officer, Sellafield Ltd

Martin has a strong commercial background in the public and private sectors. His experience stems from roles within the Cabinet Office and Balfour Beatty. He’s also held senior roles with GlaxoSmithKline, Toyota and Varity Perkins. This cross-sector experience allows him to bring best practice from other industries into the nuclear sector.

Martin took over as Chief Executive Officer at Sellafield Ltd in February 2020. His immediate focus is to bring clarity to the changing mission at Sellafield – for the workforce, supply chain and stakeholders – and the behaviours needed to help Sellafield Ltd become the company it wants to be.

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Nick Fellows

Director, Fellows Environmental

Nick has been working in the waste industry for 20 years and has been a Chartered Waste Manager for over 15 years (After graduating from Manchester University in 2002 with an MEarthSci in Geology. Nick is currently the North West CIWM centre chair. He is experience in a range of services related to the waste industry including project master-planning, site management, environmental permitting and planning applications, renewable energy projects, Life-Cycle Analysis and waste flow modelling.  Nick is an Advance User of the Waste and Resource Assessment Tool for the Environmental (WRATE). He works across private and public sectors.

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Oliver Steele

Nuclear Waste Services

Oliver is a Senior National Programme Coordinator in the Integrated Waste Management Programme. He has worked in the industry since 2017, joining the National Waste Programme Office after graduating with a Masters in Chemistry. Oliver has worked on a variety of projects supporting the implementation of the UK Low Level Waste Strategy, and led on the work to establish a Characterisation Programme under the Integrated Waste Management Programme. Oliver is currently leading the IWMP’s Conventional (non-radioactive) Waste Programme, and continuing to support the Characterisation Programme.

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Patrick Chard

Global Application Support Manager for Non Destructive Assay, Mirion

Dr Patrick Chard is a global expert in radiation measurements for nuclear sectors, particularly in decommissioning, waste and fuel management applications. He is passionate about supporting the industry with high level expertise to provide the best and innovative solutions to meet emerging challenges. He is currently Mirion’s global Application Support Manager for Non Destructive Assay, and is based  in the North of Scotland near the Dounreay site.

Starting his career as a student at the UK’s Harwell research site in 1989, he progressed to various technical and management roles in Harwell Instruments, Canberra and Mirion.  Patrick has a Physics degree, a Master of Science degree in the Physics and Technology of Nuclear Reactors, taken at Birmingham University, and he gained his Physics PhD studying neutron NDA techniques at Harwell. 

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Paul Winkle

Chief Operating Officer, Magnox Ltd

Paul Winkle joined Magnox Limited as Chief Operating Officer on 01 May 2020.  Paul holds a degree in mechanical engineering from Glasgow University and began his career as a graduate trainee at GEC Alstom.  Paul spent his early career in a variety of roles designing and servicing steam turbines before joining Scottish Nuclear (now EDF Energy) as a senior engineer.

A respected leader in the energy industry, Paul has since held a variety of management positions, including being the Station Director at Torness and the Safety and Security Director for the Generation Business.

Paul is married with two grown up daughters and enjoys running, cycling, tennis and skiing in his spare time.  He is also an enthusiastic beginner at guitar having recently started taking lessons.

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Rob Ward

Head of Nuclear, Energy & Sustainability, Copeland Borough Council

Rob leads a specialist team at Copeland Council, working closely with the Nuclear Decommissioning Authority, Sellafield Ltd and Nuclear Waste Services to ensure that the delivery of the NDA’s mission results in positive social, economic and environmental outcomes for people and communities in Cumbria. With a background at Sellafield and in the supply chain, he is a Chartered Nuclear Engineer and former chair of the UK Young Generation Network.

Rob is representing the Nuclear Legacy Advisory Forum (NuLeAF) – a Local Government Association Special Interest Group which acts as the voice of local authorities in England and Wales on nuclear decommissioning and radioactive waste management issues, currently chaired by Copeland Council.

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Sam Usher

CEO of the Australian Radioactive Waste Agency

Sam Usher took on the role of the first CEO of the Australian Radioactive Waste Agency (ARWA) in January 2022.

Sam graduated with a Masters in Chemical Engineering from the University of Nottingham in 1993, and since then has undertaken a wide range of Executive and non-Executive roles across nuclear businesses in both public and private sector, in the UK and internationally.

He has a deep understanding of the technical, operational, regulatory and stakeholder challenges associated with safely managing radioactive waste, and has a record of developing, and then implementing effective radioactive waste business strategies and programmes.

His experience of over 25 years in radioactive waste management includes operational roles in ILW retrievals and HAL management (Sellafield UK), and directorial roles in waste recycling and waste management programs (Studsvik UK, LLWR and Dounreay UK). He has extensive experience in stakeholder policy engagement gained as Programme Manager for the UK Committee on Radioactive Waste Management (CoRWM).

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Saralyn Thomas

Chair YGN

Saralyn is a Senior Safety Consultant working in nuclear safety case development at Abbott Risk Consulting Ltd. Saralyn has over 6 years’ experience in the nuclear industry and has worked for a variety of clients on safety case development, as well as radioactive waste management and delicensing projects. Saralyn has been an active volunteer of the NI and YGN since 2016.  She is currently Chair of the YGN and recently oversaw the YGN’s presence at COP26 in Glasgow.

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Seth Kybird


Before becoming CEO of NTS, Seth was Managing Director of INS from October 2017, following four years as INS Commercial Director.  He has experience of leading and developing organisations and a strong track record in tackling complex commercial challenges in the UK and internationally.

Seth began his career with Deloitte, qualifying as an Accountant in the London Practice, before joining KPMG’s Transaction Services team focusing on M&A.  He then spent a number of years as a strategy consultant, working for a number or commercial and government clients, across a range of sectors, with a particular focus on the nuclear industry.  Seth also spent time working for the UK Government’s Shareholder Executive team, focusing on the management of nuclear legacies through the Nuclear Decommissioning Authority (NDA) as well as the development of the UK new build programme before his move to INS.

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Simon Kellet

Technical Manager, Sellafield

Simon Kellet joined BNFL in 2002. He has worked predominantly in the field of aqueous effluents with roles setting up and implementing technical programmes to understand and mitigate risks in the SIXEP ion exchange effluents plant, First Generation Magnox Storage Pond and the Retrievals Value Stream. He has also led the Effluents Centre of Expertise community of practice at Sellafield. In the latter role he has actively promoted collaboration with academia including several PhD and post-doctoral projects with University of Manchester covering effluent radiochemistry and microbiology and through industry-wide collaborations including Diamond, DISTICTIVE and TRANSCEND. He is a co-chair of the Aqueous Effluents Working Group under the Nuclear Waste and Decommissioning Research Forum. He is a chartered chemical engineer and Fellow of the Institution of Chemical Engineers.

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Steve Palethorpe

Senior Technical Manager/Principle Consultant, NNL

Dr Palethorpe is a chartered chemist and Fellow of Royal Society of Chemistry with a chemical engineering PhD and has over 37 years of experience in the field of radioactive waste management. Dr Palethorpe has an established record of carrying out work programmes for the UK and International customers on waste management and decommissioning including assessment, treatment, conditioning and disposal of various types of radioactive wastes. His most recent interest is in Life Cycle Analysis and improving environmental performance of waste processing through recovery of materials for reuse or recycling.

He has particular expertise in:

  • Waste management strategies – applying knowledge of waste and engineering needs to determine optimum approaches for managing radwaste.
  • Waste treatment – developing treatment methods, techniques and formulations for treating radioactive waste.
  • Waste Disposal & Waste Regulations – recognised expert in this area working for both waste producers and regulators.
  • Optioneering – broad experience in undertaking optioneering and decision-making studies to support selection of waste treatment options including BAT, BPEO and Value engineering.

Steve has a wide knowledge of industry best practice through consultancy in the UK, Japan and for the US DoE, which involved advising US sites (notably INEEL) on all aspects of the cementation of radioactive wastes. He also participated in an IAEA consultants meeting on ‘Technical Conditions for Radioactive Waste Long Term Storage’ as well as participation in an OECD Nuclear Energy Agency – Expert Group on Fuel Recycling and Waste Technology producing an ‘International Review on Recycle and Reuse of Components from Spent Fuels’.

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Thilo von Berlepsch

Dr. Thilo von Berlepsch started his career in the nuclear industry more than 20 years ago in the area of nuclear safety and in the project management of major international nuclear projects. Being the responsible coordinator for E.ON’s activities in the British Horizon Nuclear Power was his last role before he moved on to BGE TECHNOLOGY GmbH, the engineering arm of BGE, the German implementor for the radioactive waste disposal programme.

Thilo has been responsible for the company’s international cooperations and projects department, covering the whole range of a lifespan of a nuclear waste repository programme from strategy development over construction, technology development, and operation to closure before he became BGE TECHNOLOGY’s Managing Director in 2018. Besides, he is also representing his company in international working and advisory groups.

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Tim Bond

Waste Strategy & Permissioning Manager, Magnox Ltd

Tim is a senior programme manager in Magnox with responsibility for the company’s waste management strategies and associated enabling activities across the 12 Magnox sites. Tim joined the CEGB as a physicist and has 35 years’ experience in the nuclear industry, including over 15 years in the field of waste management and decommissioning. He leads a diverse and talented team that is responsible for options assessments (BATs/BPMs), waste inventory, characterisation, HAW and LAW disposability, controlled waste, package records, transport and containers. He is also process owner of the company’s arrangements for waste management and the waste assurance programme. More recently, Tim has been the Magnox lead on waste management strategies for the company’s Future Missions – including working with EDF on strategy optimisation for the Advanced Gas-Cooled Reactors (AGRs).

As a passionate change agent, Tim is always seeking opportunities to improve approaches to waste management, both in terms of compliance and business efficiency, and has led various improvement programmes over the years. He is a proactive member of the NDA’s Integrated Waste Management Programme, which is promoting collaborative working and common goals on integrated waste management across the NDA Group of organisations.

Outside of work, Tim is married with three children (two grown up and left home, plus one energetic ten-year-old) and has two dogs. He has been known to occasionally play guitar in a rock band!

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Tony Godley

International Relations Manager, NDA

Joined the nuclear industry from university, working as a Contract Officer on Sizewell B Project Management Team.  At the conclusion of the Sizewell B Project in 1996, Tony joined the United Kingdom Atomic Energy Authority as Contract Manager leading the Windscale Contracts team and managing the UKAEA’s historic liabilities at Sellafield.  He was instrumental in introducing incentivisation into contracting for the historic liabilities.

In 2003 Tony was seconded to HMG Department of Trade and Industry unit setting up the NDA, working on the negotiation of initial NDA M&O contracts & drafting some of the first generation of NDA processes.  This led in 2005 to him joining NDA permanently as Contract Manager for various Magnox sites, during which time he managed the first round of incentivisation across the NDA’s 20 sites, establishing the template for annual incentivisation rounds in following years.

In 2016 Tony began working in International Relations, becoming full-time in 2018.  In this role, Tony works with central government (BEIS and DIT) to deliver HMG policy and NDA international strategy, drafting & negotiating co-operation agreements, fostering collaborative working with overseas partners and representing NDA & UK and speaking at conferences worldwide.

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Tracy Braithwaite

Senior Nuclear Regulator, Environment Agency

Tracy is a Senior Nuclear Regulator at the Environment Agency. As well as regulating one of the U.K.’s decommissioning power stations, she also leads on their Integrated Waste Management project which is part of their Decommissioning and Clean Up programme within the Environment Agency’s Nuclear Regulation Group. She has been leading this project for the past  three years. The aim of the project is to provide regulatory advice,  guidance and support to the Nuclear Decommissioning Authority and the site licence companies on aspects of radioactive waste management. Prior to joining Environment Agency’s Nuclear Regulation Group 4 years ago she worked for the Atomic Weapons Establishment as a Technical Authority for land contamination and environmental monitoring and latterly as an Internal Regulator for utilities and environment. Her years prior to that were spent as a principal environmental consultant and a regulator at the Environment Agency specialising in contaminated land, waste management and environmental monitoring.