William Acworth
Master of Public Policy (MPP)
Head of Programme Carbon Markets and Pricing

William Acworth is Head of Programme Carbon Markets and Pricing at adelphi.  His focus is international carbon markets and he is an expert on emissions trading. William is also the Head of Secretariat at the International Carbon Action Partnership (ICAP) where he works closely together with a network of close to forty governments and public authorities to strengthen engagement and share experience on emissions trading.

William has over a decade of experience working in climate and energy policy, spread across public, private, and academic institutions. William has acquired strong skills in quantitative economic techniques, with experience applying micro-economic frameworks and using and interpreting macro-economic models. Working directly with clients to understand their needs, he has built small economic models and has developed policy indicators. Furthermore, he has conducted policy evaluations, cost/benefit analyses, and developed organizational strategies for public sector clients.

In his capacity as Head of the ICAP Secretariat, William leads technical work programmes on issues such as carbon leakage and competitiveness, the integration of carbon pricing into electricity sector transitions, and sectoral expansion of emissions trading systems. He also designs and implements ICAP's capacity building programmes in regions such as Latin America, Asia and Africa. He has been invited to provide evidence on climate policy by the European Court of Auditors and has also sat on a number of Advisory Boards for international carbon pricing projects.

Prior to joining adelphi, William worked as a research associate in the climate policy team at the German Institute for Economic Research (DIW Berlin). While there, he was responsible for a range of international projects that assessed emissions trading in Europe and abroad. More specifically, he coordinated an international emissions trading model comparison exercise and assessed options for leakage protection in the carbon intensive materials sectors. Before relocating to Berlin, William worked as a manager at ACIL Allen, a leading Australian economics and public policy consulting firm. While there, he completed over 20 projects for Commonwealth and Australian state governments and for private sector clients. Specifically, his projects focused on the design and operation of carbon markets, non-state actors in climate governance, the impact of carbon pricing on carbon intensive industries, and improving energy efficiency in the built environment, amongst other topics.

From 2007 to 2008, William worked as a research economist in the Australian Bureau for Agricultural and Resource Economics (ABARES). He advised the government on emissions trading design, especially as relating to coverage of the agricultural sector and conducted an economic assessment of the vulnerability and adaptive capacity of agricultural industries and regions to the impacts of climate change.

William holds a first class honours degree in Resource Economics from the University of Sydney, Australia, as well as a Master of Public Policy from the Hertie School of Governance in Berlin, Germany.

Selected Projects

Selected publications

  • Is a Market Stability Reserve Likely to Improve the Functioning of the EU ETS? – Evidence from a model comparison exercise

    Neuhoff, Karsten; William Acworth, Regina Betz, Dallas Burtraw, Johanna Cludius, Harrison Fell, Cameron Hepburn, Charles Holt, Frank Jotzo, Sascha Kollenberg, Florian Landis, Stephen Salant, Anne Schopp, William Shobe, Luca Taschini, and Raphael Trotignon 2015: Is a Market Stability Reserve Likely to Improve the Functioning of the EU ETS?. Evidence from a model comparison exercise. London: Climate Strategies Report.
  • Leakage Protection for Carbon Intensive Materials Post 2020

    Neuhoff, Karsten; William Acworth, Roland Ismer, Oliver Sartor and Lars Zetterberg 2015: Leakage Protection for Carbon Intensive Materials Post 2020. In: DIW Berlin Economic Bulletin 28/29, pp. 397-404.
  • Modelling a Market Stability Reserve in Carbon Markets – DIW Discussion Paper 1483

    Schopp, Anne; William Acworth, Daniell Huppmann, and Karsten Neuhoff 2015: Modelling a Market Stability Reserve in Carbon Markets. DIW Discussion Paper 1483. Berlin: Deutsches Institut für Wirtschaftsforschung.
  • The Market Stability Reserve: is Europe serious about the Energy Union? – DIW Round Up

    Acworth, William; Nils May and Karsten Neuhoff 2015: The Market Stability Reserve: is Europe serious about the Energy Union?. DIW Round Up. Berlin: Deutsches Institut für Wirtschaftsforschung.
  • After Monetary Policy, Climate Policy: is delegation the key to EU ETS reform?

    Grosjean, Godefroy; William Acworth, Christian Flachsland, and Robert Marschinski 2014: After Monetary Policy, Climate Policy: is delegation the key to EU ETS reform?. In: Climate Policy, Published Online 5 Nov 2014.
  • Can the Market Stability Reserve stabilise the EU ETS: commentators hedge their bets – DIW Roundup

    Acworth, William 2014: Can the Market Stability Reserve stabilise the EU ETS: commentators hedge their bets. DIW Roundup. Berlin: Deutsches Institut für Wirtschaftsforschung.
  • Including consumption in the EU ETS – Administrative implementation of a consumption based charge

    Acworth, William; Manuel Haussner, Roland Ismer, and Karsten Neuhoff 2014: Including consumption in the EU ETS. Administrative implementation of a consumption based charge. London: Climate Strategies Report.
  • Peer review of Study 'Assessing design options for a Market Stability Reserve in the EU ETS' – Prepared for the UK Department for Energy and Climate Change, London

    Neuhoff, Karsten; William Acworth, and Anne Schopp 2014: Peer review of Study 'Assessing design options for a Market Stability Reserve in the EU ETS'. Prepared for the UK Department for Energy and Climate Change, London.
  • Staying with the leaders: Europe’s Path to a low carbon economy

    Neuhoff, Karsten; William Acworth, Antoine Dechezleprêtre, Oliver Sartor, Misato Sato, Susanne Droege, Stefan Schleicher, and Anne Schopp 2014: Staying with the leaders: Europe’s Path to a low carbon economy. London: Climate Strategies Report.
  • The rise or fall of carbon markets? Assessing the state and direction of carbon market governance post 2012 – CSPR Report No 12:02

    Acworth, William and Eva Lövbrand 2012: The rise or fall of carbon markets? Assessing the state and direction of carbon market governance post 2012. CSPR Report No 12:02. Norrköping: Centre for Climate Science and Policy Research.

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