Mott MacDonald is expanding its renewable energy presence in North America with the opening of a dedicated office in Boston. In addition, Tremain Tanner has been appointed as Vice President, Renewable Energy. Tanner brings a wealth of experience in the development of private sector renewable energy projects in wind, hydro, wave and tidal, biomass and landfill gas. He also has a successful track record in strategic consultancy in the North American power sector, and has extensive project based transaction experience closing investments valued at over USD 5 billion.