Joint Office Team


The Joint Office staff are seconded by the Gas Transporters. They have extensive experience of the governance processes surrounding development of the commercial arrangements which underpin the gas industry in GB.  Brief details of each staff member are provided below.

All can be contacted via or 0121 288 2107.


Penny Garner

Chief Executive

Penny was appointed to the role of CEO of the Joint Office in September 2017. She has come from National Grid/Cadent Gas where she has worked for nearly 20 years building up a wealth of experience in audit, compliance, ethics, and regulation. 

Bob Fletcher

Workgroup Chair

Bob has over 45 years' experience in the gas industry, originally joining West Midlands Gas, Distribution. In recent years he has been involved in the development of Siteworks agreements, metering separation and separation of National Grid and sold Networks systems.  He is Chair of the DSC Contract Management Committee and DSC Change Management Committee.

Kate Elleman

Workgroup Chair

Kate has over 30 years experience working in the Gas Industry having worked in Metering, Gas Distribution and Transmission businesses within National Grid.  Kate started work as a commercial trainee with British Gas West Midlands and has held a variety of roles including Customer & Contract Manager, Network Operations Manager, Head of Asset Management and Business Improvement Lead.

For more information please see

Rebecca Hailes

Workgroup Chair

Rebecca has over 20 years’ experience working with energy systems and energy technologies, both in the UK and overseas. Prior to joining the Joint Office, Rebecca worked with Synnogy Ltd and E4tech, focusing on new energy strategy, development opportunities, future planning and horizon scanning for blue chips and large public bodies such as BP, E.On, GE, Uniper, WWF, Linde/BOC, Balfour Beatty and HSL with a key focus on fuel cells and hydrogen, in all applications. She previously worked in fuel cell and H2 reformer product development with Nuvera Fuel Cells in the US and at Kodak. She holds degrees in Environmental Technology, Manufacturing Engineering and German from Brunel University and Imperial College and is a Chartered Engineer. Rebecca has previously lived and worked in some of the world's richest and poorest countries and speaks several languages. At the Joint Office, she Chairs the DSC Change Management Committee and the Distribution Workgroup and enjoys the challenge of Legal Text and the most technical modifications. For more information please see: 

Yvonne Reid-Healy

Workgroup Chair

Yvonne joined the Joint Office in May 2021 and has nearly 20 years' experience in the gas industry. Yvonne joined National Grid on a year’s development as a Financial Analyst and has held a variety of roles within National Grid, Fulcrum and Cadent including, Transactional Finance Manager, Continuous Improvement & Performance Manager, Data Assurance Specialist, and RIIO-2 PMO Manager.

For more information please see


Helen Bennett

Industry Governance Specialist

Helen has over 30 years’ experience in the Gas Industry, originally joining British Gas on a 6-month Youth Opportunities Scheme and then working in various departments from Customer Services to Performance Reporting. She then enjoyed some time at Npower and Xoserve before moving to National Grid and the Gas Incentive Team managing the Capacity Auction process. Helen joined the Joint Office in February 2017.

Helen Cuin

Industry Governance Specialist

Helen has over 32 years' experience in the gas industry, originally joining British Gas as a Commercial Trainee. Helen joined the Joint Office in 2005.  She Chairs a number of Committees including the Demand Estimation Sub-committee (DESC), the DESC Technical Workgroup, and the Shrinkage Forum, she is also the Secretary to various Workgroups and Committees.


Ben Mulcahy

Industry Governance Analyst

Ben has nearly 20 years of experience in the Gas & Electricity Industries having worked at a number of Shippers and Suppliers, both I&C and Domestic, as well as in Gas Metering and Gas Distribution Network businesses.  He has held a range of roles, including Operations Management, Siteworks, Customer Support, Account Management and Sales as well as Product Development. Ben has worked widely in energy regulation, managing responsibilities (including audits) under several energy industry codes.


Nadia Zahid

CEO Office Administration Support

Nadia Zahid joined the Joint Office in July 2022 and although new to the gas industry, she brings a wealth of admin experience along with facilities support.
Nadia is the Joint Office Administration Support and Support to the CEO of Joint Office.