Experience

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  Deloitte Consulting

  • Costa Rica

  • Senior Energy Advisor and Engagement Leader

    • 2009 - Present
    • Costa Rica

    Specialist Leader in Deloitte’s Emerging Market Infrastructure and Sustainability practice. Mr. Wentzel has just completed a USAID-funded engagement for the African Development Bank to assess their guarantee products and credit enhancement instruments, including benchmarking them against similar ...

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  Enertech International, Inc.

  • Washington DC (Metro Area)

  • President and CEO

    • 1999 - 2008
    • Washington DC (Metro Area)

    President and CEO of an international consulting firm specializing in infrastructure advisory services including private sector participation, privatization planning, due diligence reviews, transaction structures, risk management, clean energy technology assessments, market assessments and strate...

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  Stone & Webster Management Consultants, Inc.

  • Washington DC

  • Vice President

    • 1997 - 1999
    • Washington DC

    Vice President for Project Finance Services and Utility Restructuring. In addition, had primary responsibilities within the firm for providing private sector clients with market assessments, strategic business plans, financial structuring assistance, and project development support for basic infr...

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  Resoure Management International, Inc.

  • Washington DC

  • Principal Executive Consultant

    • 1994 - 1996
    • Washington DC

    Principal Executive Consultant providing project development support and financial structuring assistance to a variety of clients including private developers overseas, host governments, and multilateral development banks.

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  K & M Engineering and Consulting Corporation

  • Washington DC

  • Director for Business Development

    • 1989 - 1994
    • Washington DC

    Director for Business Development responsible for promoting K & M’s services to both government and private sector clients. In addition, during the first three years at K & M, he served as a senior project manager for a variety of international projects in the energy, power, water, and te...

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  U.S. Department of Energy (DOE)

  • Washngton DC

  • Director for International Energy Projects and Technical Assessments

    • 1987 - 1988
    • Washngton DC

    Director for International Energy Projects and Technical Assessments responsible for developing innovative strategies for promoting the export of U.S-developed energy technologies, especially to countries for which traditional sources of financing were not always available.

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  The White House

  • Washington DC

  • Senior Staff Member

    • 1986 - 1987
    • Washington DC

    Senior Staff Member in the Office of Policy Development responsible for managing a 15-agency review of U.S. developmental assistance policies and programs for sub-Saharan Africa, and serving as a principal drafter of the final report to the President of the United States.

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  U.S. Department of Commerce

  • Washington DC

  • Executive Director of the Interagency Task Force for Nuclear Exports

    • 1985 - 1986
    • Washington DC

    Executive Director of the Interagency Task Force for Nuclear Exports. Responsibilities included coordinating the efforts of eight U.S. federal agencies responsible for nuclear export licensing, trade development, insurance, and financing in support of the U.S. nuclear industry. Led the trade miss...

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  U.S. Department of Energy (DOE)

  • Washington DC

  • Acting Deputy Assistant Secretary for International Energy Cooperation

    • 1983 - 1985
    • Washington DC

    Acting Deputy Assistant Secretary for International Energy Cooperation responsible for negotiating and managing international energy research and development agreements. Also served as the USDOE representative on the U.S. Treasury export credit financing accord team during negotiations with the E...

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  U.S. Trade and Development Agency

  • Washington DC Metro Area

  • Energy Advisor to the Director

    • 1981 - 1983
    • Washington DC Metro Area

    Energy Advisor to the Director responsible for assisting U.S. firms in winning contracts for major energy projects overseas. In addition, served as a country officer for sub-Saharan Africa.

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  U.S. Department of Energy (DOE)

  • Washington DC

  • Deputy Director for Field Operations and International Programs

    • 1979 - 1981
    • Washington DC

    Deputy Director for Field Operations and International Programs responsible for managing DOE's international conservation and renewable energy programs, as well as international solar market development initiatives. Also, served as Director of the External Coordination Staff responsible for l...

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  TEAM Incorporated

  • Springfield, Virginia

  • Director for Renewable Energy Programs

    • 1978 - 1979
    • Springfield, Virginia

    Director for Renewable Energy Programs responsible for managing a major bio-energy resource assessment, as well as serving as a project manager for solar PV demonstration projects.

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  Congressional Budget Office

  • Washington DC

  • Principal Energy Analyst

    • 1975 - 1978
    • Washington DC

    Principal Energy Analyst responsible for conducting in-depth analyses of timely public policy issues in the energy sector.

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  U.S. Naval Academy

  • Annapolis, Maryland

  • Faculty Member in the Economics Department

    • 1971 - 1975
    • Annapolis, Maryland

    Faculty Member in the Economics Department lecturing in International Trade and Finance, Economic Development, Comparative Economic Systems, and Economic Geography. Also founded Enertech Associates comprised of faculty members from the Engineering and Economics Departments which provided technica...

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  US Navy

  • Southeast Asia

  • Surface Line Officer

    • 1965 - 1969
    • Southeast Asia

    Served as a surface line officer on three separate combatants during the Vietnam War in positions of ever increasing responsibility encompassing four extended deployments to the war zone.