Members of GEMA

Mae’r dudalen yma ar gael yn Gymraeg.

Martin Cave

Martin Cave

Chairman

Martin Cave is Chairman of the UK Gas & Electricity Markets Authority (GEMA). Martin Cave has worked in government and academia as an economist specialising in competition law and the regulation of network industries. From 2012 to 2018 he was a panel deputy chair at the Competition and Markets Authority or its predecessor, chairing market investigations, merger inquiries and regulatory appeals. He carried out five independent regulatory reviews for the UK Government and has advised many regulators in the UK and internationally. He has held chairs at various UK universities, including Warwick and the London School of Economics, and is the author of several books and articles on regulation.

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Dermot Nolan

Dermot Nolan

Chief Executive

Dermot joined Ofgem as Chief Executive Officer in March 2014. He brings with him extensive leadership experience in energy regulation, market competition and the protection of consumers' interests having most recently been Commissioner at the Commission for Energy Regulation in Ireland from May 2008 and its Chair since May 2011. Prior to this, he was Senior Economic Adviser at the Commission for Communications Regulation and was manager of the mergers division for the Irish Competition Authority. A graduate of Trinity College Dublin, he undertook further study at Yale where he gained a PhD in Economics. He has lectured at the University of London, specialising in the areas of market structures and firm performance.

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Sarah Cox

Sarah Cox

Chief Operating Officer

Sarah Cox joined Ofgem as Chief Operating Officer in May 2016. She is responsible for ensuring the efficient structure and running of the organisation along with the successful implementation of Ofgem’s strategic priorities and delivery of its Forward Work Programme. Sarah is Senior Responsible Officer for the Great Working Environment Programme, bringing people together in new locations in London and Glasgow in newly designed premises that support smarter and more flexible working. Sarah also works closely with the UK regulatory network business improvement forum focussing on identifying key improvements and with a lead role in the joint shared services initiative.

Prior to joining Ofgem Sarah held senior posts in the Cabinet Office and DWP. Her roles include Head of Project Delivery and Digital Development in DWP, Director for Universal Credit Programme Co-ordination in DWP, Head of Business Planning and Programme Management for the London 2012 Olympics and Director for Strategy and Planning in the Cabinet Office.

Jonathan Brearley

Jonathan Brearley

Executive Director, Systems and Networks

Jonathan Brearley is Executive Director, Systems and Networks at Ofgem. He leads on the evolution, funding and strategy for the UK energy system and the development of the wider market for gas, electricity generation and network services.     

In particular, he oversees work on the RIIO price controls, network charging, the role of the system operator and the regulatory structure for networks and the wholesale market.  

He has a wide ranging energy sector experience, having led major reforms through Electricity Market Reform and as the Strategy Director for the Department of Energy and Climate Change. Prior to this he led the Office of Climate Change reporting to 6 Government Departments on climate change strategy and delivery.

Before working in energy, Jonathan was a senior adviser in the Prime Minister’s Strategy Unit, focussing on a range of domestic policy issues including taxation, pensions and local services.

He holds a Bachelor’s degree in Mathematics and Physics from Glasgow University and a Master of Philosophy in Economics from University of Cambridge.

Mary Starks

Mary Starks

Executive Director, Consumers and Markets

Mary Starks joined Ofgem in September 2018 and oversees Ofgem's work to protect consumers' interests in the retail and wholesale energy markets, including putting in place a price cap for all those on poor value default deals.

Mary joined from the Financial Conduct Authority where she was the Director of Competition (as part of a job-share) and Chief Economist. She has over two decades' regulatory and public policy experience. 

Before joining the FCA, she was Senior Director at the Office of Fair Trading, where she oversaw the watchdog's work in financial services, legal and professional services, health, education and infrastructure. Mary has also worked on energy regulation at NERA Economic Consulting, and at the New Zealand Commerce Commission. She began her career at the Bank of England.

She is a trustee of Working Families, a leading UK charity helping parents, carers and employers find a better balance between the responsibilities of home and work.

Keith Lough

Keith Lough

Non-executive member GEMA

Keith is a non-executive member of the Gas and Electricity Markets Authority and chair of the Audit and Risk Assurance Committee.

Keith has extensive experience in the natural resources and energy sectors in both finance and leadership roles, including a period as finance director for British Energy. He also holds Non-Executive Directorships in oil and gas and mining companies, including Cairn Energy plc and Rockhopper Exploration plc. He has a Master in Finance from London Business School and is a fellow of the Chartered Association of Certified Accountants.

Paul Grout

Professor Paul Grout

Non-executive member GEMA

Paul Grout is a non-executive member of the Gas and Electricity Markets Authority. With a Chair in Political Economy at the University of Bristol, Paul is also senior advisor for Competition at the Bank of England and a member of Ofcom's Panel of Academic Advisors. 

He has published extensively on regulation and competition policy, has advised many UK and international government departments and public bodies on regulatory issues and has been an advisor to the House of Lords Economic Affairs Committee and a member of a CBI Taskforce.

Christine Farnish

Christine Farnish

Non-executive member GEMA

Christine is a non-executive member of the Gas and Electricity Markets Authority.

Christine has a range of regulatory, consumer and financial services experience. She currently serves as a non-executive director on the Ofwat and ABTA Boards and chairs the P2PFA, the body representing peer to peer lending platforms. She previously served as chairman of Consumer Focus, consumer director at Oftel and the Financial Services Authority, CEO of the National Association of Pension Funds and a Managing Director at Barclays. She has been a non-executive director on the OFT, Advertising Standards Authority and ING Direct Boards and she was a Civil Service Commissioner.

Christine graduated from Manchester University and has an M.Sc in Conservation from UCL.

Ann Robinson

Ann Robinson

Non-executive member GEMA

Ann has been a consumer champion for gas and electricity consumers for 10 years. After being in senior positions in the public, voluntary and private sector she became Chair of the first Gas and Electricity Consumer Council which she called energy watch in 2000. She took on this role because she was passionate about helping people to be able to afford energy which she believes is an essential for life like housing and food. 

Over the last few years she has been working as a consultant advising a price comparison site on becoming more consumer centric. Doing pro bono work with charities Chairing and facilitating meetings and working with Ofwat on its Price Review and opening up the market to SMEs as well as Chairing a company owned by the Electricity Safety Council.

Lynne Embleton

Lynne Embleton

Non-executive member GEMA

Lynne is a non-executive member of the Gas and Electricity Markets Authority.

Lynne brings a wealth of strategy, customer and operational experience gained in the aviation sector.

She is a member of the management committee of International Airlines Group and is currently CEO of IAG Cargo and a non-executive director on the board of British Airways.

Previous executive roles include Managing Director of BA’s business at Gatwick Airport and BA Director of Strategy, where she had responsibility for economic regulation. Former non-exec roles include chairman of BA CityFlyer Ltd and non-exec of British Midland Airways Ltd.

Lynne has a BSc in mathematics, an MSc in management science and an MBA.

John Crackett

John Crackett

Non-executive member GEMA

John Crackett is a non-executive member of the Gas and Electricity Markets Authority.

John has a wealth of experience in the energy sector, and other regulated industries. He is a Chartered Engineer, who spent his early career designing, building and operating power stations. Subsequently he has run IT, business services and energy services businesses for international energy companies. His last full-time role in the sector was as managing director of Central Networks, the UK’s second-largest distributor of electricity, then owned by E.ON UK. He retired from the E.ON UK board in 2011.

He has held non-executive roles at the Office of Nuclear Regulation and in a telecoms company. He has also been a member of the Army Board, he advises MOD on electricity generation and distribution, and is involved in housing and veterans’ charities.