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CMAG Members

The Capacity Market Advisory Group (CMAG) has been established to enable the CM Rules change process to become more dynamic and adaptive to changing market conditions. CMAG endeavours to increase transparency and promote collaboration between industry parties when developing, scrutinising, and prioritising CM Rules changes.

Secretariat

The CMAG Secretariat supports the administrative activities of the Group.

Chris Arnold, Elexon

I am a Senior Change Lead at Elexon, with a focus on the Capacity Market. Prior to this, I was a Senior BSC Change Analyst, responsible for researching, coordinating and progressing BSC changes along with identifying and assessing the potential impact of those changes.

Phillip Paul, Elexon

I am an independent management consultant who has worked around Electricity Market Reform since 2013, initially with DECC (now DESNZ), then LCCC/ESC and then EMRS. During this time I worked on the development of the Capacity Market regulations, rules, target operating model, end-to-end business process model and settlement systems.

Members

The CMAG Members are industry nominated and approved by Ofgem. The CMAG supports the development and prioritisation of CM Rule changes.

Brian Lake

I started my energy industry career with British Gas and was lucky (or not) to have witnessed some fundamental changes to the industry (privatisation, dash for gas, British Gas de-merger). After some time away from the industry where I worked in the retail and financial sectors, I was drawn back in and for the past seventeen years I’ve worked for E.ON UK. Within E.ON UK I’ve been fortunate to work across a number of sectors which includes Customer and Market Analysis, Renewables, Trading, Upstream and Downstream Strategy and for the last five years, I’ve been the Capacity Market Manager with the responsibility of managing the complete Capacity Market process for E.ON UK. This role has given me a comprehensive understanding of how the Capacity Market operates and all the associated advantages and disadvantages, experience that will be beneficial as a member of the CMAG.

Eleanor Haynes

I am a Senior Advisor at EDF Energy for security of supply and system operability policy. I work across EDF's business units, including nuclear operations, customers and optimisation, renewables (wind, solar, and battery storage), and subsidiaries focusing on electric vehicles, demand-side response, and hydrogen. My role focuses on policy development for the GB Capacity Market and ancillary services for system flexibility. Before EDF I worked for an engineering consultancy, providing technical services for the financing, development, and operation of energy projects in GB, primarily covering gas reciprocating engines, battery storage, and waste-to-energy technologies. I have been involved in Capacity Market work since 2016, previously advising clients on prequalification applications and agreement management, and undertaking the Independent Technical Expert (ITE) role for over 100 CM Units.

Mark Duffield

I have worked in the electricity industry for over 20 years and have been heavily involved since 2012 in the development, operation and participation in the GB Capacity Market. I have a wide-ranging knowledge of the existing capacity market rules, and a keen interest in playing an active role to ensure that the GB Capacity Market is fit for purpose and is able to respond to the challenges the electricity system faces in the coming years.

Paul Jones

I have over 30 years’ experience of market rules and regulatory issues in both retail and wholesale electricity markets in GB, first at the electricity regulator OFFER before working within retail, generation and trading businesses. My areas of experience include the Capacity Market Rules and Regulations, the Connection and Use of System Code (CUSC), Balancing Services, the Balancing and Settlement Code, Code Governance, wider electricity regulation such as relevant Acts and licensing, Grid Code, network access and charging, plus retained European Regulations. I have worked on a wide number of industry changes and projects including the introduction of Retail and Agent Competition in electricity, NETA, BETTA, Project Transmit and Electricity Market Reform (EMR), and have been a member of a number of governmental and regulatory expert groups (including the EMR Institutional Framework Expert Group), code modification workgroups and the CUSC Panel. I have been a member of CMAG since 2022.

Raoul Thulin

I started in the industry in 1998 at National Power as a commercial analyst within the Ancillary Services team. With the introduction of NETA, responsibilities included numerous CUSC and BSC Working Groups with a focus on developing commercial frameworks for a number of services. After managing the Ancillary Services team for a number of years, I led the project to prepare RWE for the introduction of the Capacity Market. This included active participation in the numerous industry meetings where some of the details of the Rules and Regulations were developed. Since the start of the Capacity Market, RWE has been a major participant in the auctions, with existing as well as new-build assets. It has taken part in a number of capacity agreement trades, as well as being instrumental, through Energy UK, in the development of standard terms for post-System-Stress-Event trading of over/under delivery.

Richard Thwaites

I am Founder and CEO at Penso Power, a developer, owner, and operator of grid-scale battery energy storage assets. I was formerly Chairman at Limejump, a leading energy technology company, prior to the acquisition of that company by Shell in 2019. I spent a large part of my career in investment banking roles at Morgan Stanley, HSBC, and Emergent Capital Partners.

Representatives

Representatives are non-voting individuals from central organisations involved in the Capacity Market.

Andrew Macdonell

Andrew Macdonell is the Ofgem Representative for CMAG, and is responsible for executing Ofgem’s regulatory duties in relation to the Capacity Market

Beth Hanna

Beth Hanna is the EMR Delivery Body Strategy and Policy Manager, and acts as the EMR Delivery Body Representative for CMAG.

Maryam Khan

Maryam Khan is the Head of Domestic Market Management at Ofgem, and acts as the Ofgem Representative for CMAG. Maryam brings a wealth of knowledge and experience from various roles within Ofgem including GSO and ESO Regulation.