Mae’r dudalen yma ar gael yn Gymraeg.

Here you can view the profiles and biographies of our directors.


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.

Download a high resolution headshot of Dermot Nolan.

Consumers and Markets

Rob Salter-Church photo

Rob Salter-Church

Interim Executive Director

Rob leads our Consumers and Markets directorate. His team is responsible for monitoring the operation of the retail and wholesale markets and the use of our compliance and enforcement powers to improve supplier and network conduct, holding companies to account for delivering good quality services to consumers, and to manage the risks of financial fraud in the wholesale market. The team is also responsible for introducing temporary price protection for disengaged and vulnerable consumers and developing a future retail market, which supports innovation and delivers better outcomes for all consumers as part of a low-carbon, smarter energy system.

Rob joined Ofgem in November 2013 to lead our work on smart metering and smarter markets, having worked in a number of departments in central Government for more than a decade, advising various Cabinet Ministers and the Head of the Civil Service on a range of policy areas, but with a particular focus on energy. Rob has worked as an economic advisor in HM Treasury leading on energy market issues, as well as the Department of Energy and Climate Change, covering a range of issues such as new nuclear power, electricity market reform, retail markets and carbon capture and storage.

Anthony Pygram

Director, Conduct and Enforcement

Anthony Pygram became Director for Conduct and Enforcement in April 2018. He is responsible for Ofgem’s oversight of retail and wholesale markets, including taking action to address or prevent problems arising, and for all of Ofgem’s enforcement activity, ensuring strong signals are sent to the market about the standards that are expected. Anthony joined Ofgem in 2011 and has at different times since then been Partner for Enforcement & Competition Policy and for Consumers. From July to December 2015 Anthony headed up Ofgem’s Sustainable Development Division.

Before joining Ofgem Anthony was an Inquiry Director at the Competition Commission, leading, amongst other things, investigations into payment protection insurance and whether BAA should be required to sell Stansted Airport. Prior to this, Anthony held various posts at the (then) Department of Trade & Industry. Anthony’s early career was in research and development of industrial materials.

Philippa Pickford

Interim Director, Future Retail Markets

Philippa is the interim Director of our Future Retail Markets Portfolio. This team is responsible for developing a future retail market, which supports innovation and delivers better outcomes for all consumers as part of a low-carbon, smarter energy system.  

Philippa has been at Ofgem for more than a decade. Previous to her current role, she led our work to regulate the Electricity System Operator and to deliver legal separation of the Electricity System Operator within National Grid plc. As part of this, she oversaw the introduction of a new regulatory and incentives framework for the Electricity System Operator. She has previously led Ofgem’s work relating to the evolving distribution system operator role; security of supply, wholesale market design, including the Capacity Market, wholesale market conduct and smart metering.

Systems and Networks

Jonathan Brearley

Jonathan Brearley

Executive Director

Jonathan was appointed Executive Director of Systems and Networks from 1 April 2018. 

He is responsible for energy systems strategy, leads on regulation of price controls for the distribution and transmission networks for gas and electricity (RIIO) and leads on the interconnector and offshore transmission regimes. 

He has wide-ranging energy sector experience, having led Electricity Market Reform as the Director for Energy Markets and Networks at DECC. Prior to this, he was Director of the Office of Climate Change, a cross-government strategy unit focussed on climate change and energy issues. Earlier in his career, Jonathan was a senior adviser in the Prime Minister’s Strategy Unit.

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

Akshay Kaul profile photo

Akshay Kaul

Director, Network Price Controls

Akshay is responsible for the economic regulation of transmission and distribution networks in the gas and electricity sectors in Great Britain, including the development of the next generation of network price controls called RIIO2. He joined Ofgem in 2017, and was previously responsible for the delivery of multi-billion pound investment regimes in the onshore and offshore transmission, and cross-border interconnection sectors.  

Prior to joining Ofgem, Akshay was on secondment from HM Treasury to Transport for London, where he led TfL’s work on funding transport infrastructure in London by capturing the uplift in land and property values associated with transport projects such as Barking Riverside Extension, Crossrail 2 and the Bakerloo Line Extension. This followed a spell of five years at HM Treasury, where Akshay directed energy and transport projects for Infrastructure UK, a specialist infrastructure unit responsible for the planning, prioritisation, funding, financing and delivery of economic infrastructure. He has been involved in the design and delivery of electricity market reform, the competition for carbon capture and storage, the development of the new nuclear energy programme, the reform of the strategic roads network and regeneration projects such as the Northern Line extension to Battersea Power Station in London, the UK’s first large scale tax increment financing scheme. He also directed the production of the National Infrastructure Plan in 2011.

Earlier in his career, Akshay worked for ten years with Partnerships UK, a joint venture between HM Treasury and the private sector, on the delivery of projects in the transport, health, education and housing sectors under the Government’s private finance initiative. He started his career in India, where he worked in investment banking and project finance for energy, transport and industrial projects for the IL&FS Group, a major Indian financial institution. Akshay studied economics, finance, management, and bioscience, at the London School of Economics, the universities of London and Delhi, and the Indian Institute of Management.

Cathryn Scott

Director, Wholesale Markets and Commercial

Cathryn joined in 2013 as the Legal Director for E-Serve environmental schemes and our offshore transmission tenders regime. Between 2016 and 2018, she was Partner for Wholesale Markets and Legal in the Energy Systems division, leading on the provision of legal advice and on Ofgem’s oversight of the wholesale energy market, gas systems issues and settlement reform. In April 2018, she was appointed Director of Wholesale Markets and Commercial. 

Before joining Ofgem, Cathryn worked in both the public and private sectors. She was the Deputy General Counsel at the Department for Transport, having headed up teams advising on aviation and rail regulation. She has extensive competition, regulatory and procurement law experience, having also worked for the Competition Commission and Linklaters EU and Competition Group. Previously, she worked in the litigation division of the Treasury Solicitor’s Department and as Assistant to the European Speakers Counsel at the House of Commons. She holds a PhD from the European University Institute in Florence.

Frances Warburton

Director, Energy System Transition

Frances joined Ofgem in January 2015 and is the directorfor Energy Systems Transmission, with responsibility for the integration and transition of energy systems. This involves overseeing all aspects of network charging, access and system operation across the electricity and gas networks, and leading Ofgem’s work on the future of gas and heat.

Before joining Ofgem, Frances was a director in the Economic Advisory Practice at EY where she specialised in the energy sector. Prior to that, she was a competition investigation director at the Office of Fair Trading. Frances has a masters degree in economics from LSE and a bachelors degree in engineering physics. 


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.

Joe Perkins

Joe Perkins

Chief Economist

Joe Perkins joined Ofgem as Chief Economist in July 2016. He is responsible for Ofgem’s analytical strategy and quality assurance, and analysis of potential energy sector developments. He leads Ofgem’s economics profession, promoting the quality of analysis across Ofgem, and represents Ofgem economics in external forums. He is a member of the Government Economic Service board and is Ofgem’s senior representative on the UK Regulators Network.

Joe was previously director for regulation, consumers and competition at the National Audit Office, responsible for value for money audits of economic and financial regulation and the competition and consumer protection regimes. He has also worked as an economist at HM Treasury and Oxford University. 

Patricia Dreghorn

Patricia Dreghorn

Director, E-Serve

Patricia (Trish) is responsible for the E-Serve division. E-Serve administers renewable energy and social schemes on behalf of government. The division designs, sets up and delivers large scale schemes in the sustainability sector. We strive to do this efficiently and effectively to enable government to meet its aims of reducing CO2 emissions, improving energy efficiency and reducing fuel poverty.

Before joining us, Trish worked in the outsourcing sector, focused on procurement, finance and administration solutions and services for clients across the banking, aerospace, defence and retail sectors. Her most recent role was MD UK accounts and Director, Strategy and Technology. Before this, Trish held various leadership roles in shared services, product development, acquisition, implementation and production management within both the outsourcing and spirits and wine sector.

Trish graduated from Strathclyde University with a BEng (Hons) in Manufacturing Systems Engineering and a Masters in Business Administration.