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Sean Gammons


tel: +44 20 7659 8564
fax: +44 20 7659 8565
tel: +49 30 408 173 197



MSc in economics, University College, London
Diplôme d’Ingénieur, Ecole nationale supérieure du pétrole et des moteurs (ENSPM), Paris
BA (Hons.), Oxford University


Mr. Gammons is a Director for NERA's European Energy Group and specializes in economic and valuation issues in the power and gas industries. In his advisory work, Mr. Gammons specializes in market analysis and regulation for corporate and government clients. In the past several years, he has led a large number of due diligence and valuation exercises in support of acquisitions, greenfield investments, and financings in the UK, Europe, and Asia, covering both the deregulated and regulated segments of the power and gas industries. His other past advisory assignments have spanned regulatory issues in market design and network regulation, risk management, fair market value assessments for tax reporting, and cost-benefit studies of policy or institutional rule changes. Mr. Gammons has prepared expert testimony in a range of commercial arbitrations, litigation cases, and regulatory appeals. These cases have involved contractual disputes, antitrust matters, tariff cases, and commercial damages in countries such as the UK, Belgium, France, Denmark, Norway, Greece, Hungary, and Singapore.