Date joined: September 2005

Committee Membership: Executive, and Health and Safety

External: A non executive director of Johnson Matthey plc.

Previous: Dorothy was previously the head of the European business of InterGen NV, the power generation subsidiary of Shell NV and Bechtel Inc., responsible for the management and operation of four gas-fired power plants, totalling some 3,160MW of capacity across the UK and the Netherlands. Prior to joining InterGen NV in 1998, Dorothy was initially in banking and subsequently was assistant group treasurer for Powergen plc.

Qualifications: BSc (Hons) and MSc in Economics