Tierney joins Ze-gen's board of directors

Ze-gen Inc., a clean energy company developing advanced gasification technology to convert waste streams into synthesis gas, added Susan Tierney, an expert on energy policy, regulation and economics, to its board of directors. Tierney, a managing principal at Analysis Group in Boston, has consulted for companies, governments, nonprofits, and other organizations on energy markets, economic and environmental regulation and strategy, and energy facility projects. Her areas of expertise include gas and electric markets and regulatory policy, resource planning and analysis (including energy efficiency and renewable energy), regional transmission organizations, the siting of generation, transmission and natural gas pipeline projects, and environmental policy and regulation. The former assistant secretary for policy at the U.S. DOE, Tierney also served as the secretary for environmental affairs in Massachusetts, commissioner at the Massachusetts Department of Public Utilities, and executive director of the Massachusetts Energy Facilities Siting Council. Recently, she co-led the Obama/Biden Transition's Department of Energy Agency Review Team.