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Portrait of Ed Weightman


Ed is a senior associate in the regulatory compliance and commercial dispute resolution teams. He advises on a wide range of contentious and non-contentious regulatory law issues, including compliance, regulator powers, and investigations. His recent casework has involved Ofgem, the Health and Safety Executive, and local authorities, amongst others. He has expertise in policy development and the drafting and interpretation of regulations, in challenges to regulators’ decisions, including through judicial review and statutory appeals, and in information law issues.

Ed also advises on commercial disputes, including contract and negligence claims. He has a strong track record of resolving disputes through the county court, High Court and Court of Appeal, and through mediations, arbitrations and adjudications. His specialist experience is combined with a broad understanding of the full spectrum of legal issues faced by businesses.

Prior to joining Penningtons Manches Cooper in 2018, Ed spent five years at the energy regulator Ofgem, where he was a senior legal advisor and head of enforcement casework. Ed was responsible for the delivery of a variety of investigations including into suspected breaches of licence conditions, industry codes, competition law, consumer protection law and REMIT. He managed Ofgem’s pipeline of new casework, helped lead its enforcement function and worked on policy development.

Ed trained and practised at Manches, qualifying into the commercial disputes team in 2009.

Recent work highlights

  • Advising on compliance with changing and newly emerging energy regulation, including the retail price cap.
  • Acting for regulated businesses subject to compliance engagement and enforcement activity, including in respect to HSE and Ofgem investigations.
  • Advising construction clients on compliance with health and safety legislation and associated codes and standards as well as providing guidance on potential challenges to the decision-making processes of one regulator.

Penningtons Manches Cooper LLP

Penningtons Manches Cooper LLP is a limited liability partnership registered in England and Wales with registered number OC311575 and is authorised and regulated by the Solicitors Regulation Authority.

Penningtons Manches Cooper LLP