Our leadership team

Meet the leaders behind Sizewell C.

Rob Holden, Non-Executive Chair

Rob has vast experience and expertise in delivering transport and infrastructure projects. He has been a non-executive director at Sizewell C for the last 8 years and was appointed Chair in December 2022.

Rob is also Chair of London City Airport and a non-executive director of Electricity North West and Chair of its Audit and Risk Committee.

He is the former CEO of London’s Crossrail project (the Elizabeth Line) and of London & Continental Railways (LCR).

Julia Pyke, Joint Managing Director

Julia is responsible for financing Sizewell C, and oversees the finance, legal, communications, regional external affairs and wider project development functions.

Prior to her move to Sizewell C, Julia was Head of Power and Renewables for UK, US & Europe at Herbert Smith Freehills LLP.

Julia is a Fellow of the Energy Institute and an Honorary Fellow of the Nuclear Institute.

Nigel Cann, Joint Managing Director

Nigel has worked in the nuclear industry for 43 years with a uniquely diverse experience in engineering, operations and large-scale project management.

He has held plant manager positions at Dungeness B and Sizewell B and was Station Director at Hinkley Point B (HPB) leading the HPB plant recovery and life extension projects before becoming Hinkley Point C‘s Delivery Director.

Frederic Mayoux
Chief Financial Officer

Frederic Mayoux
Chief Financial Officer

Joining SZC as CFO in 2021, Frederic has almost 40 years' experience in the energy sector with a career in business development spanning multiple countries across Europe.

Bertrand Michoud
Project Engineering and Delivery Director

Bertrand Michoud
Project Engineering and Delivery Director

Bertrand has 25 years of experience in the power industry and has been SZC Engineering and Delivery Director since 2019. He was previously Site Director at Flamanville3.

Sarah Hancock
Human Resources Director

Sarah Hancock
Human Resources Director

​Sarah leads our people, skills, industrial relations and inclusion agenda. A solicitor by background, and a Chartered Fellow of the CIPD, she's passionate about helping people reach their full career potential.

Mina Golshan CBE
Safety, Security and Assurance Director

Mina Golshan CBE
Safety, Security and Assurance Director

Mina joined SZC after 12 years at the Office for Nuclear Regulation. She has over 20 years' experience in nuclear and high-hazard industries in public and private sectors and holds a PhD in Physics.

Graeme Bellingham
Transition and Interim Commercial Director

Graeme Bellingham
Transition and Interim Commercial Director

Graeme is leading SZC's transition from EDF majority shareholding to a standalone entity, whilst maximising connectivity with HPC. He was EDF’s UK Supply Chain Director, with over 30 years' project experience.

Abbie Pokorny
Director of Legal Services

Abbie Pokorny
Director of Legal Services

Abbie is a solicitor with over 15 years' experience advising clients on the development of projects across a range of infrastructure and energy projects. She joined the project in 2021.

Tilly Spencer
Technical Director

Tilly Spencer
Technical Director

Tilly joined the project in 2024 from Edvance UK where she was Director for four years leading on design and engineering support to Hinkley Point C and Sizewell C.

Katherine Horrell
Treasury Director

Katherine Horrell
Treasury Director

Katherine has worked in corporate finance and treasury for over 20 years in a range of organisations. She joined us in 2024 to lead the implementation and ongoing management of our new financing arrangements.