David L. O'Connor

P: 617.348.4418
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David L. O'Connor

P: 617.348.4418

One Financial Center
Boston, MA 02111

David L. O'Connor

Senior Vice President for Energy & Clean Technology

David helps energy and technology companies expand their markets and accelerate their growth. With deep knowledge of the energy industry and environmental issues, David helps these companies shape emerging public policies to their advantage. His clients include companies that deliver energy efficiency services, develop wind, biomass and other renewable power plants, install transmission and smart grid technologies, and bring new low-carbon fuels and offsets to the marketplace.


David has been a leader and problem-solver in the public and private sectors for more than 30 years. Most recently, he served as the Massachusetts Commissioner of Energy Resources during the tenures of five Governors, from 1995 through 2007. During this time, he developed and managed many of the state's energy policies and programs.

Under his leadership, Massachusetts began a historic movement to expand the use of clean energy. For example, he implemented the first-ever standards for renewable energy use and renewable certificate trading in New England. David oversaw the operation by electric and gas utilities of $150 million annually in energy efficiency programs. He was a member of the Massachusetts team that negotiated the first-ever multi-state agreement known as the Regional Greenhouse Gas Initiative (RGGI) to limit emissions of climate-changing carbon from power plants.

As a member of the state Energy Facilities Siting Board from 1995 to 2007, he voted to approve the siting of several billion dollars in new power plants across the state, including the Cape Wind power plant. For more than ten years, he led Massachusetts' participation in the deregulation of the region's $15 billion electricity market. He testified regularly before legislative committees, gave hundreds of media interviews, and often represented the Governor of Massachusetts before state and federal regulatory agencies.

Prior to his appointment as Energy Commissioner, David held a number of positions in the dispute resolution field. He founded and directed the Massachusetts Office of Dispute Resolution, the first state agency in the U.S. created to resolve non-labor, public disputes. Before that, he was the chief mediator of the first regional environmental mediation service in the United States. From 1987 to 1993, David served as an Adjunct Lecturer at Tufts University in the Department of Urban and Environmental Policy, where he taught graduate courses on negotiation and conflict resolution in public-sector, multi-party disputes.

David currently serves on several professional and philanthropic boards, including the Board of Directors of the Environmental Business Council of New England, the Policy Committee of the New England Clean Energy Council and the Governing Board of the Massachusetts Ocean Partnership.


    B.A. in English Literature with a minor in Education, cum laude, from Middlebury College in 1974

    Masters in Public Administration from Harvard University's Kennedy School of Government in 1994