Mr. Pfeifenberger is an economist with a background in electrical engineering and over 25 years of experience in the areas of electricity markets, regulation, and finance.

Mr. Pfeifenberger specializes in:

  • Electricity market design and energy policies
  • Transmission pricing and cost-benefit analyses
  • Analysis and mitigation of market power
  • Strategy and planning
  • Storage and generation asset valuation
  • Ratemaking and incentive regulation
  • Contract disputes and commercial damage

On behalf of his clients, Mr. Pfeifenberger has submitted expert testimony to the US Congress, courts, arbitration panels, and regulatory agencies in the US and Canada. He also provides support in mediation, arbitration, settlement, and stakeholder processes. He helps clients explore the benefits of alternative regulation, the desirability of settlement proposals, and the impact of regulatory and legislative actions in the context of evolving market conditions.

Mr. Pfeifenberger is a Senior Fellow at Boston University’s Institute of Sustainable Energy (BU-ISE) and a Visiting Scholar at MIT’s Center for Energy and Environmental Policy Research (CEEPR). He also serves as an advisor to research initiatives by the Lawrence Berkeley National Laboratory’s Energy Analysis and Environmental Impacts Division and the US Department of Energy’s Grid Modernization Lab Consortium. Before joining Brattle, he was a Consultant for Cambridge Energy Research Associates and a Research Assistant at the Institute of Energy Economics at the University of Technology in Vienna, Austria.


Brandeis University, MA in Economics and Finance

University of Technology, Vienna, Austria, MS (Diplom Ingenieur) in Electrical Engineering and Energy Economics

Program of International Business, Sophia University, Tokyo, Japan


Mr. Pfeifenberger has testified in numerous regulatory, litigation, and arbitration proceedings, including before the U.S. Federal Energy Regulatory Commission and various U.S. state and Canadian regulatory commissions. For a list of testimony, please email