Visit Us

6th Floor
Tara House
46 Bath Street
G2 1HG

Call Us

0141 353 4980

Email Us

Speaker Biographies

Terry A’Hearn

Chief Executive Officer

Scottish Environment Protection Agency

Terry has over twenty years’ experience in the environment profession, having held senior roles in Melbourne with the Environment Protection Authority in the Australian state of Victoria, in London with the global consulting firm WSP and, most recently, in Belfast as Chief Executive of the Northern Ireland Environment Agency before he joined SEPA. In all this work, Terry has strongly focussed on bringing environmental and economic aims together, supporting business and social innovation and getting tougher with the worst environmental performers. Terry is a Senior Associate at the Cambridge Programme for Sustainability Leadership, a member of the Advisory Board of the Global Footprint Network and a Fellow of the UK Institute of Directors.
Terry is also co-chair of the European EPA network’s Better Regulation Interest Group

David Bell


David Bell Planning Ltd

David Bell Planning Ltd (DBP) is a specialist renewable energy planning consultancy established by David Bell in June 2019. David is a Chartered Town Planner and planning consultant with 30 years’ experience of planning and development practice. He was previously Head of Planning for JLL in Scotland and held that role for almost 20 years. He has particular expertise in relation to energy planning and onshore wind development. He has advised on some of the UK’s largest renewable energy projects including the Viking, Dorenell, Fallago Rig, South Kyle and Millennium Extension Wind Farms in Scotland, and Scout Moor in England. David has advised on feasibility studies and planning applications covering onshore wind energy, biomass, solar and transmission infrastructure. David is a recognised leading planning consultant on renewable energy development and frequently acts in the capacity of expert planning witness at Public Local Inquiries and in Appeals throughout the UK.

Colin Calder

Chief Executive and Founder


Colin founded PassivSystems in 2008 following extensive research into zero-carbon homes and the roll-out of smart meters to domestic homes in Italy. He is a Fellow of the Energy Institute and an Advisory Board Member to UCL’s International Energy Institute. He is a founding member of Energy UK’s New Energy Services & Heat Committee and his company is a member of the Smart Power Industries Alliance.

He is a regular speaker at local and international conferences including World Energy Congress, United Nations sustainable Energy for All and World Economic Forum (WEF). His company has won numerous awards including WEF Technology Pioneer, Global Cleanteh 100 and UCL Knowledge Transfer Business of the Year.

In 1996 Colin founded Paragon, a software company focused on synchronising data between mobile phones, desktop applications and web-based services, which he sold 3 years later for $500 million to In 1999 he was a winner of the prestigious EY Entrepreneur of the Year award.

Along with his work in the technology sector, Colin has also held the positions of Director of X/Open (now The Open Group), a global consortium of technology manufacturers working to promote open standards in the field of information technology. He has also acted as an advisor to the European Commission, European Parliament and the UK Parliamentary Affairs Committee on proposed changes to European legislation permitting the reverse engineering of interface specifications, a change which led to the dramatic rise of open systems and distributed computing.

Barry Carruthers

Head of Innovation & Sustainability


Barry leads the Corporate Innovation and Sustainability function at ScottishPower. This ranges from strategic activities in the decarbonisation of transport and heat and other emerging technologies, to initiatives focused upon the UN Sustainable Development Goals. Following several years in ScottishPower Renewables where Barry led activities in marine energy and wind innovations, he now works across all ScottishPower divisions in order to foster innovations and sustainability across the sector.

Lord Ian Duncan

Parliamentary Under Secretary of State for Climate Change

UK Government

Lord Ian Duncan was appointed Parliamentary Under Secretary of State for the Department of Business, Energy and Industrial Strategy on July 26 2019 and served as the Lords lead on all BEIS issues.

In 2014 Ian was elected to the European Parliament. During his time in the Parliament, Ian’s primary focus was climate change. He was a Parliamentary delegate to the UN Climate Change Conferences (COP) in Lima (2014), Paris (2015) and Marrakech (2016). He was the Parliament’s rapporteur (lead negotiator) on reform of the EU’s carbon market legislation (the ‘Emission Trading Scheme’), the cornerstone of the EU’s climate change ambitions.

Claire Mack

Chief Executive

Scottish Renewables

Claire has been Chief Executive of Scottish Renewables, the representative voice of Scotland’s renewable energy industry, since October 2017. She is responsible for leading the organisation’s work to grow Scotland’s renewables sector and sustain its position at the forefront of the global clean energy industry.

Claire is a member of the First Minister’s Energy Advisory Board and the Renewables Industry Advisory Group, co-chaired by Scotland’s Energy Minister.

Before joining Scottish Renewables, Claire was Director of Policy and Place at the Scottish Council for Development. She has previously worked in various roles at Ofcom in Scotland, focusing on economic regulation of telecoms, radio spectrum and the mail market while also looking at developing digital participation of individuals and businesses.

Prior to this Claire worked in retail and the construction industry as well as on regulation of regional broadcasting in the Borders and North East of England.

Tim Marshall

Journalist, Author and Broadcaster

The former Diplomatic Editor and foreign correspondent for Sky News, Tim Marshall brings thirty years’ experience in reporting, presenting and writing about current affairs and international news to the corporate circuit as a keynote speaker and conference facilitator. Through his speech, blogs and books, including New York Times bestseller ‘Prisoners of Geography’, Tim translates his political analyses of world affairs into terms that appeal to all audiences.

Nick Sharpe

Director of Communications & Strategy

Scottish Renewables

Nick Sharpe is Scottish Renewables’ Director of Communications & Strategy. His work involves overseeing Scottish Renewables’ media and public affairs work and liaising between the organisation’s member companies, the media and other stakeholders to promote positive news about the sector to diverse audiences.
A former journalist, Nick trained on the South Wales Echo then spent seven years at the Sun, latterly as Chief Reporter.
He then spent a year at Weber Shandwick, one of the world’s largest public relations consultancies.
At Scottish Renewables he’s also responsible for aspects of marketing and all the organisation’s social media.

Chris Stark

Chief Executive

Committee on Climate Change

Chris has been Chief Executive of the Committee on Climate Change since April 2018. His previous role was Director of Energy and Climate Change in the Scottish Government, leading the development of Scotland’s approach to emissions-reduction and the accompanying energy system transition. His team provided advice to Scottish Ministers on all aspects of energy and climate policy – and on licensing and consent decisions for new onshore energy infrastructure. Prior to that Chris headed the Strategy Unit, the Scottish Government’s central strategy team, and he has worked in a number of Whitehall departments. He has wide experience of economic policymaking, in the Scottish Government, HM Treasury and the Department for Business, Innovation and Skills.

Morag Watson

Director of Policy

Scottish Renewables

Morag is Scottish Renewables’ Director of Policy. Her work involves overseeing Scottish Renewables’ policy function and key projects within Scotland’s leading renewables trade body, working on behalf of 250+ organisations to grow Scotland’s renewable energy sector and sustain its position at the forefront of the global clean energy industry.

Morag has worked in policy for over 15 year and was previously a Senior Policy Officer with WWF Scotland, specialising in climate change, sustainable development and behaviour change. During this time, she worked on the Scottish Government’s Climate Change and Sustainable Development Action Plans, worked as an advisor to UNESCO and helped found the Scotland’s Regional Centre of Expertise on Education for Sustainable Development within the University of Edinburgh.

Morag holds a degree in Environmental Geoscience from the University of Edinburgh, is a qualified Hill and Moorland Leader and lives in a self-built eco-home in Central Scotland.

Claire Spedding


National Grid Smart

Claire is passionate about facilitating the transition to a decarbonised, decentralised energy system through embracing innovative and disruptive technologies; and promoting the growth of diversity and inclusion in the energy sector.

She is Director of National Grid Smart, National Grid’s smart metering business, and has had a long and varied career since joining the National Grid Group in 2002. Career highlights include representing National Grid in the London 2012 Olympics control room, leading a high-performing deal team to agree critical national contracts and outperforming financial targets to optimise the c.£1bn cost of operating the GB electricity system.

Claire is named on the @rise_utils list of the top 25 UK influencers in the energy industry, in the top 1000 @SustMeme global influencers on Climate & Energy and she also sits on the Advisory Board for the Oxford University-run UK Centre for Research on Energy Demand.